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Battery Bleed Off!
June 22, 2012
4:45 am
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Jake81499
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Yesterday I attempted to check the draw on a 710 while it was booting with a new GPX file. My multimeter won't pass sufficient current to let it boot. It's a 200mah max meter and overlimits on boot.

The reason I was trying this with a new file is because the batteries get warm when booting with a new file and even with new batteries the unit may say I need to replace the batteries.

So, what I can do is this,

Measuring across the two bottom posts I'll try to give the voltage drop with batteries I just installed last night that haven't been used yet.

Batteries out of unit and placed in series, 3.00v
Unit off across bottom terminals, 3.00v
Loading new GPX file, 2.84v
Drops to 2.82v @ 22% complete
Drops to 2.81v @ 51% complete
Drops to 2.80v @ 74% complete
Drops to 2.77v once booted, backlight on.
Rises to 2.79v when backlight shuts off.
Battery indicator shows 1 or 2 bars under full.
Backlight on, dropped to 2.75v.
Out of the unit and placed in series again, 2.98v

While I was doing this test there was an indexing error so when I clicked on the Geocaches the Indexing Databases screen came up.

June 21, 2012
5:33 pm
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soleful2001
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Thanks Jaker,

I finished my latest trip on Thursday 6/14. I really enjoyed the remoteness and scenery. I am not sure if you saw my latest posts of this last trip, please feel free to check them out. I used a very basic tiny point and shoot camera due to the weight constraints of a multi-day solo trip.

This kinds of segues into the topic here. Batteries. I took a crap load of batteries for my Explorist 610.

I took at least 1.5 lbs of batteries. I took 4 lithiums, and about 10 alkalines.

I had the high end Energizer Alkalines, and they lasted about 30% longer than the generic alkalines and cost twice as much.

The lithiums performed the best as expected, with plenty of power for two hiking days.

The high end alkalines lasted about one full hiking day (10 hours)

The generic alkalines lasted about 7 hours with a lot of suspend time.

The main problem I saw was when I took photos using the ex610, the battery power dropped dramatically. So much was the drop in battery level, that I avoided using my GPS camera.

Voice memos had no significant impact on battery drain.

I did not use video on the Explorist 610 at all.

In summary, for 5 nights, 6 days on the trail, I used 4 pairs of alkalines (the fifth pair were rusted from the rain and were unuseable) and 1 pair of lithiums.

June 9, 2012
3:39 am
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Jaker
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Sounds like a good time, soleful2001, on the Foothills trail. Enjoy! Yeah, I was using my unit pretty much every day up until the last few weeks until I decided I needed to actually catch up on some long overdue work around the house. By the way , I checked your photos out on Flickr--- some very nice shots indeed! I also enjoy photography and hiking, so we have a couple of common interests.

Jaker

June 8, 2012
7:24 pm
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soleful2001
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Thanks for the info Jaker. Dont think I could go more than a day without turning mine on!
I am going on an 80 thru hike of the Foothills trail, and will let everyone know how much battery power this will require. Dang batteries are heavy!

June 8, 2012
3:46 am
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Jaker
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Test results updated for my 610 (see above).
Three days ago my battery showed a bit less than one third charged and just now batteries
were so depleted they would not attempt to start unit. So fully charged batteries were dead in about 15 or so days. All in all unit was only powered on/off three times during test.

Jaker

After running the above test, I also installed a similar set of batteries into the unit which were fully charged at the same time as the ones used in the test. This set was placed beside the unit and so were stored in the same temperature conditions as those inside the unit. They are showing that they have retained about four fifths of their charge according to the gpsr's battery display.

June 8, 2012
2:00 am
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jmebd
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Ok David....wanted to give it a week (or close to it) before I replied...

Tried your suggestion about the "turn off the barometer" to see if it made any difference in battery bleed off stuff....

I use rechargables set on the alkaline setting and typically they're dead after a couple days even with the unit turned off. Turned off the barometer and left it off for several days now (close to a week) and just turned it on a bit ago and battery level indicator was at the same level when I turned it off. I played with the unit for about 20+ minutes to see if it was a fluke and did notice the battery bar go down just a bit but not very far....like 1/4 tick or so...turned it off a 3/4 battery bar full. Stayed 3/4 for about 10 minutes or so then went to 1/2 charged.

Long winded but that's what I've seen so far...didn't take it out on the road (cutting hay, bush hogging, cattle shipping time so don't have a lot of time this month to get out BOO!!!!).

-jamie

May 30, 2012
3:01 am
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denisetdoris
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btw my s/n is 0149000018391, 610 Canada version.

Denis Gionet, OGA Executive Member - Northern Ontario.
May 29, 2012
7:35 pm
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Jaker
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I am the owner of a 610 Serial #0149000089162.

I have the battery bleed problem to the extent that the batteries (2000 mAh Duracell rechargeables) were sometimes depleted if left in the unit for 10 days. Having said that though, the battery drain has sometimes appeared inconsistent.

Exactly 8 days ago in an attempt at trouble-shooting I (1)-turned off my barometer,
(2)-changed active suspend from 15 minutes to never,(3)-changed power off from 8 hours to never.
The battery was fully charged for the test and now is showing about three quarters full, which seems like an improvement to me. Within the last 8 day period I have only powered on the unit twice and back off again to check the battery level.
I am using the units battery level indicator as my only gauge as I have no testing equipment.

Jaker

May 29, 2012
6:47 pm
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David
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Please forgive my spelling - I hate writting messages from my tablet since it thinks it knows which words I need more than I do...

David

May 29, 2012
6:30 pm
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Sorceress
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dwcarr1 wrote:

Hello all,

Please do me a tabor if you're having the battery bleed. Disable the barometer in the settings menu and see if you notice any change. I put new duracells in my 710 a week ago with the barometer off and when I fired up this morning they still had a full charge.

Thx,
David

Mr. Carr, I have several 610 and 710 units with the battery drain problem. If I turn off the electronic compass or barometer either singularly or both on or both OFF .. the drain problem does not disappear.

I could not find a sequence to stop the problem.

If your findings are correct you should be able to reverse to a normal setting and the drain problem should reappear.

Do this occur?

-S-

May 29, 2012
6:21 pm
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phild31
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My 710 does not have a bleed off of the batteries problem.
I have tested it with;
Active Suspend Timer set for 1,2,5,15 minutes & never
Power off timer set for 2,3,5,8,10 hours & never
Battery Type set for alkaline, lithium & rechargeable
Backlight timer set for from 15 seconds to 15 minutes
Backlight set max & minimum
Barometer on & off
Compass on & off
Compass & Barometer both on & both off, one on & one off
Using alkaline, lithium & rechargeable batteries
The back cover on & off
The SD card in & out
I also tried reloading the last three firmwares to the 710
I tried it with no user data & maximum user data (maps, geocaches, waypoints, tracks, routes, photos, videos & audio notes).

I can't think of anything else to try

If the way the barometer/compass are wired/built/programmed is causing the problem why does mine not have the problem?
If it is the firmware why has my 710 never had this problem?

Personally, I am now taking the batteries out of my unit every day when I'm finished with it, just in case. 😛

If Magellan can use it for figuring out the problem the serial number of my 710, without the problem is - #0150000002280

When in trouble or in doubt, run in circles, scream and shout
May 29, 2012
5:29 pm
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phild31
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denisetdoris wrote:

dwcarr1 wrote:

Hello all,

Please do me a tabor if you're having the battery bleed. Disable the barometer in the settings menu and see if you notice any change. I put new duracells in my 710 a week ago with the barometer off and when I fired up this morning they still had a full charge.

Thx,
David

My barometer has been disabled almost since I've owned the unit. The barometer screen still shows the current active barometric pressure and the scale still shows the trend, even with the barometer turned off.

Is it possible that the barometer and/or electronic compass are connected together, ie- when either one is selected then automatically they're both turned on, whether only one is on or not ? Maybe they both have to be turned off to shut them down properly. If only one is disabled perhaps that one will still drain power.

Good question for the engineers.

You can choose to use gps or barometer for altitude readings.
I think you will find that when the barometer is shut off the screen will show pressure and the trend, but the data being used to figure pressure & trends is from gps signal of altitude, not the barometric pressure.

When in trouble or in doubt, run in circles, scream and shout
May 29, 2012
1:32 pm
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denisetdoris
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dwcarr1 wrote:

Hello all,

Please do me a tabor if you're having the battery bleed. Disable the barometer in the settings menu and see if you notice any change. I put new duracells in my 710 a week ago with the barometer off and when I fired up this morning they still had a full charge.

Thx,
David

My barometer has been disabled almost since I've owned the unit. The barometer screen still shows the current active barometric pressure and the scale still shows the trend, even with the barometer turned off.

Is it possible that the barometer and/or electronic compass are connected together, ie- when either one is selected then automatically they're both turned on, whether only one is on or not ? Maybe they both have to be turned off to shut them down properly. If only one is disabled perhaps that one will still drain power.

Good question for the engineers.

Denis Gionet, OGA Executive Member - Northern Ontario.
May 29, 2012
7:42 am
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David
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Hello all,

Please do me a tabor if you're having the battery bleed. Disable the barometer in the settings menu and see if you notice any change. I put new duracells in my 710 a week ago with the barometer off and when I fired up this morning they still had a full charge.

Thx,
David

May 27, 2012
1:09 pm
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alois
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The other german user noticed the battery profile difference on a eXplorist 710.
I use two eXplorist 610, both do not have a bleed off failure but i use the litium-profile.
The units serial numbers are 014900005xxxx and 014910001xxxx.
So the first is one out of the first production and the second is yust a few months old.

May 27, 2012
1:42 am
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Sorceress
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SIG, your message raises two questions. 1) Was the unit described in the german forum a 610 or 710? 2) Maybe the user has a different barometer/altimeter sensor than the rest of us.

I am assuming that the user did not have a 510 because these units should not have any Battery Drain problems.

-S-

May 27, 2012
12:11 am
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Jaker
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I have the bleed off problem on my 610 and though using rechargeables I leave the setting on alkaline.

Jaker

May 26, 2012
10:25 pm
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S!G
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Just a idea: A member of the german forum wrote, he would have the battery bleeding issue only, when set to rechargeable. With the setting to alkaline, the device is not bleeding of the battery.

It could be possible, since I normaly have the setting to alkaline and do not have that issue.

Can anybody confirm?

¡¿ʎɐqǝ ɟɟo pɹɐoqʎǝʞ sıɥʇ ʎnq ı pıp ʎɥʍ
May 21, 2012
3:11 pm
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Sorceress
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Robert, I do believe that the forum is leaning toward the possibility that the Battery Drain is being caused by the Barometer/Altimeter Sensor mounted on the circuit boards of the 610 and 710 units.

In your case, your unit, I believe does not have this sensor and this may be the reason that your problem was isolated and solved by the action on the Suspend feature.

Just my guess. -S-

May 21, 2012
2:14 pm
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robertkeehn
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I had an issue about a month ago where I had a new set of batteries go dead in just under a week.

I then changed the suspend timeout to "never", and then started checking battery voltages while sitting over a 4 week period. I can say that over that 4 week period I saw very little drop in voltage. On a new set of store brand alkaline batteries I saw the voltage go from about 1.45 volts down to about 1.40 volts over the 4 week period (which was about 80% on the batter meter on the EX510). Then I took the gps out geocaching for an entire afternoon before the batteries finally died and the unit shut off.

Based upon this I am only seeing a minor drain, and if I was at about 75 to 80% battery level after 1 month, then it should take at least 4 to 5 months of sitting to completely drain a set of store brand alkaline batteries. And I would never leave a high value electronic device with a set of batteries in it sitting that long due to the potential for battery leakage and unit damage.

This is about what another forum poster commented on when measuring idle current on his unit.

Based upon this unscientific test I would suggest everyone change their suspend timeout to "NEVER" and see of their bleed off gets better, and post their own results here.

May 20, 2012
5:10 am
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badaboom
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Will do -
Although all this is pretty much known with Registering the unit upon purchase.

part # TX0710SGXUS
eXplorist 710 United States
SN 0150000018052

May 20, 2012
4:13 am
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Sorceress
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May I suggest that you report the Model Number and Serial Number to Mr. Carr. He is tracking all the problem units. -S-

May 20, 2012
2:12 am
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badaboom
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Put me in the boat full of holes.
I brought along some CORKS. :unsure:

I would write more but I feel most of the prior
replies pretty much cover the issue and the users
experiences and scope of the problem.

I will be calling Magellan Monday to note the issue on my unit.

I also feel that one year is why to long to move this type of
issue to the high priority list.

ESPECAILLY WHEN YOU ONLY HAVE A 1 YR WARRANTY.
Also communication to the user needs to be better.
I'm a registered owner user and discussion board member
and there has been NO Communication about the possible or reality
of the issue.

I'm now a member of the walking DEAD
(Walking Dead Battery Club - that is)

I want all people to note this
WARRANTY DISCLAIMER: Magellan will, at its sole discretion and at no cost to the customer replace the defective GPS receiver with a reconditioned unit of the same model, as available. If the same model is not available, a comparable model GPS receiver will.

ONLY USED OR COMPARABLE MODEL - Great
RIDICULOUS

May 9, 2012
12:09 am
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phild31
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You are not alone about compass & map, I would make the same mistakes and have to wander a bit to find landmarks.

I got tired of replacing and throwing away lithium/alcaline batteries so I use rechargeable batteries now.
The weight penalty of half a dozen spares I can live with to give me the huge advantage of my 710.

And I also always have a map & compass with me.

When in trouble or in doubt, run in circles, scream and shout
May 8, 2012
2:58 pm
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soleful2001
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Interestingly, I have had no battery bleed off problem. I have noticed that using lithiums, and the lithium settings, the battery meter falls alarmingly fast and then holds on yellow for a long time. If I use alkaline settings, it stays full and green for a long time. Psychologically I prefer the alkaline setting! I have become adjusted to carrying more batteries. yes they are heavy,but it's worth it. I can remember navigating with a map and compass all the time, and say what you want, but there were times when I would lose track of how long I hiked since last checking, or could not locate a prominant land mark, to orient myself, etc.,
GPS takes a lot of doubt out of navigating, and yes I still use my map and compass, but now it is much simpler and i can concentrate more on the scenery than on navigating.

I love my GPSr's especially this 610.

May 6, 2012
6:31 pm
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pcaple
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I have resorted to always removing batteries from my 610 until heading into the field.....sucks.....yes!

April 27, 2012
9:59 pm
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robertkeehn
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I did have a brand new set of alkaline batteries go from full to dead in about 5 days a couple of weeks ago. I put them in the GPS on sunday evening after a day of geocaching before uploading my geocaches. I then turned off the gps after just a couple of minutes. Then when I went to turn it on 5 days later it was completely dead. This is on an EX510 unit.

Try going into your settings and changing the setting to never automatically go into standby and see if the problem persists on your EX610.

April 27, 2012
9:40 pm
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Sorceress
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I would agree that the 510 is void of the possibility of the problem relating to the altimeter/barometer component. The unit does not have the Barometric Altimeter Sensors.

What you may have accidentally accomplished is that the 510's will not have the drain problem.

Under these circumstances we would only be looking at the 610 and 710 displaying the drain problem if correct.

April 27, 2012
8:46 pm
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robertkeehn
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I have been doing more testing on my EX510. A couple weeks ago I had a new set of batteries drain in 4 days when powered off.

Now I have had a set in for just over a week. I only turned it on once when I first installed them, and again last night to check the battery level, still full, and I have taken the back off every evening to check the batteries voltage with a meter.

So far the voltage has been holding steady at 1.455 volts now for 6 days. No drain this week.

Very puzzling how I can have battery drain one week, and none the next. The only thing I changed in the settings is to never go to standby, and power off after 2 hours.

And in response to the sensor question others have posed. The EX510 doesn't have sensors, so that cann't be the culprit in my case.

April 26, 2012
2:22 am
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ShortcutHicksy
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The ‘Find Next’ is a fault in the firmware and should be fixed. This continual reliance on work a rounds is what gives a produce a bad name. It is impossible to educate every new purchaser on “oh if this doesn’t work do this” this is not the way forward if the company is concerned about its brand name.

The cause you found is reproducible so it should be a simple matter of finding and fixing the bug in the software.

Graham.

April 26, 2012
12:14 am
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pprass
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dwcarr1 wrote:

... as well as the find next are on the top of there priority list.

David

The "Find Next" issue shouldn't take Magellan much to deal with as it was explained in an earlier post. As a matter of fact, I don't think there is anything to be done - just explain how it works.

April 25, 2012
6:28 am
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phild31
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I believe the power drain problem is a hardware defect in some units.
Otherwise my unit would have the same power drain that other units have.
If it was caused by the way that the sensors are designed to operate then all units, including mine, would have the same power drain problem.

If you have the barometer shut off the altimeter gets it's data from the gps signal instead of the barometer.

And I refuse to believe that anybody would design a battery powered device that can not be shut off.

I don't understand why there is any kind of battery drain at all, no matter how small, when the unit is not being powered by the batteries, as when powered by the vehicle power cord or usb cable.

There is also no reason I know of to need power supplied to the unit at all times, we can take the batteries out and the unit works fine when we put batteries back in it. Nothing has to be reset or recalibrated.

I repeat, if your unit has a serious battery bleed off problem while shut off I believe it is defective and should be replaced/repaired by Magellan.

And it should not be up to us to find out how many units are defective, what the problem is and then advise Magellan on how to fix it, that's Magellan's job!

WARNING WARNING SARCASM COMING NEXT! :woohoo:

Magellan should be used to this, years ago they had to recall every single one of the first batch of Explorist XL units they sold because of a defect they didn't notice. :blush:

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April 25, 2012
5:50 am
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David
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Ok, just to let you know that I spent the day at an event with Jeff and Ken from Magellan and the power bleed, as well as the find next are on the top of there priority list.

David

April 25, 2012
4:48 am
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denisetdoris
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Sorceress wrote:

Phil,

Theoretically you are probably correct. But maybe the only thing that the OFF switch does is turn off the digital display and not disengage the sensors. This would mean that the sensors are always powered.....

....This makes me think that the sensors are always active and that the digit readout is only turned on and off.

I believe when the Power Off sequence is done the unit shuts off the processor, GPS receiver chip and the majority of the remaining hardware. It is certainly possible that some of the hardware (sensors, for example) may remain on, although I haven't experimented. I have noticed however, when viewing the Barometer graph (which is Always OFF in All profiles) that the graph tends to vary up and down with the current barometric trend (meaning it doesn't actually turn off when I tell it to), and it responds to Power Off and On and shows this on/off trend in the graph.

The 2nd part above I believe there is more than just the screen is turned off on a Power Off sequence, otherwise you would be in Suspend mode, which would essentially keep the screen off and keep the processors and sensors functioning.

Denis Gionet, OGA Executive Member - Northern Ontario.
April 25, 2012
4:11 am
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Sorceress
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Phil,

Theoretically you are probably correct. But maybe the only thing that the OFF switch does is turn off the digital display and not disengage the sensors. This would mean that the sensors are always powered.

What I notice in my 610 is that when I turn on the display I get an immediate response and no damping or oscillation effect in the readout.

This makes me think that the sensors are always active and that the digit readout is only turned on and off.

Another point is that when I looked at how these sensors operate I noticed that the electronics are joined. This also makes me think that if you turn off one sensor but use the other sensor the components have to stay on for both.

Again, I profess my technical ignorance of these matters. I am just speculating on possibilities.

If I am incorrect, Dave or some member of Magellan who monitor this forum can simple put my hypothesis to rest by saying that I am incorrect.

Also under my hypothesis this is not a software solvable problem and maybe that is why we have not seen in the latest firmware a "no solution" scenario.

What do the members think of this diagnosis?

April 25, 2012
1:50 am
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phild31
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The barometer does have an off option, it shouldn't be on at all unless you turn it on.

But the drain problem could be literally be anything, why would anything stay on or draw power after you turn the unit off?

You were most likely right about a manufacturer's lot with a bad component or production problem.

When in trouble or in doubt, run in circles, scream and shout
April 24, 2012
4:32 pm
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Sorceress
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I noticed on the 610 disassembled pictures that the 610 has a large Altimeter/Barometer component.

I looked up the current consumption for similar devices in China and they are reporting =>10ma for the Altimeter/Barometer component.

I am not technical but is this something that could cause the Battery Bleed as they are never turned off unless you remove the batteries.

Just a hunch.

April 23, 2012
3:49 am
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pprass
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jmebd wrote:

Eh...I've noticed mine bleeds off also when I leave it plugged into my PC...

Yes and a couple of us also believe that the batteries bleed while in the Magellan vehicle power adaptor.

April 22, 2012
9:17 pm
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phild31
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Well, that would appear to be the battery drain.
No matter what, there is a constant drain on the batteries.
At .5 milliamps it doesn't seem to kill my batteries in the two weeks I tested it for, so the units that loose their batteries in two weeks or less must have a higher current draw for some reason.

Perhaps, at least until we hear from Magellan about it, taking the batteries out over night would be the best course of action.

I know, I know, it's a pain in the *** but it's better than dead batteries every other time you grab the unit, isn't it?
And we all carry spares anyway, keep them with the spares.

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April 22, 2012
2:25 pm
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robertkeehn
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I hooked up the multimeter test while connected and powered by usb and I get about .5 mill amps draw just like when powered off. That is really strange. Because I can remove the batteries when powered by USB and the unit stays on. I would think that there should be zero draw when connected to USB power.

April 22, 2012
5:21 am
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phild31
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Hmmm, it does get it's power from the usb port.

A while ago I pulled the batteries while 'connected' to the pc to find out where it got it's power while connected.
The unit stayed on and connected.

That tells us something about the battery drain, I'm not sure what though.

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April 22, 2012
3:36 am
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jmebd
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Eh...I've noticed mine bleeds off also when I leave it plugged into my PC that I NEVER turn off. Thought it would get it's power from the USB ports and not run them down seeing as how I do not let my pc go into any hybernation or reduced power modes other than a screen saver. I also have my usb ports remain active full time (aka.....don't use power save feature on it either)

Oh well...Just another part of pre-adventure prepping for me. It is kinda annonying in a way tho...

April 21, 2012
11:35 pm
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phild31
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I am just a member of this board and an owner of several Magellan units.
I have no inside information or contacts at Magellan or MiTAC.

I am not trying to be a leader or a "chief" of anything but was just suggesting that it might be a good idea for anyone that has a defective unit to report the problem directly to Magellan.

Mr. Carr has been great in contacting, coordinating and keeping us on this board informed on what he has learned about many issues.

I never suggested that anyone not send serial numbers of defective units to Mr. Carr

But if Magellan also gets complaints and repair requests through their own customer relations/support departments they may pay more attention to this issue.

Yes, my 710 does not have this problem but I have been trying to find a possible cause and solution to help the people that do have a defective unit.

So, with all due respect, Mr. Carr informed the research department at Magellan about this issue months ago.
The people with units that have this problem that still have a warranty on them might want to try contacting Magellan about the problem before the warranty runs out.

MiTAC's quality control department needs to be informed about this issue, for whatever reason Magellan apparently has not told them about this issue.

I can't complain to MiTAC or Magellan about a problem somebody else has.

To make myself clear, send the serial numbers to David but it also might be a good idea to contact Magellan about your defective unit.

phild31 aka Philip Demers

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April 21, 2012
9:30 pm
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Again may I address the obvious.

I have no idea who pchild1 is. I do know that Mr. Carr was pursing this problem.

I do not understand why he cannot continue to keep leadership of this problem as he has in the past.

I will send my serial number to Mr. Carr and assume that unless he gives up his lead we do not create too many "chiefs".

Lastly, the 710 units also have the Battery bleed problem and this has also been reported by many members.

So, with due respect, just because your 710 does not have this problem simply proves my suggestion.

Namely, that we obtain a list of the serial numbers with the problem and see if they point to a production or component problem.

MiTAC has an excellent Quality Control program. I rather believe that something is amiss in the components used in the printed circuit boards.

April 21, 2012
8:22 pm
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phild31
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dwcarr1 wrote:

I would be more than happy to forward the information if those of you who are having problems want to email me the serial numbers of the units that you are having the problems with.

David

David, I appreciate all you have done to help resolve this issue but Magellan apparently has not gathered enough data on this issue. :blink:

This thread was started almost a year ago in response to an earlier thread.
Magellan's research team has known about the problem for almost a year now and no communications about a possible cause, solution or even that they acknowledge the problem exists has been forthcoming. 🙁

My 710 does not have this problem so I have no real issue to complain about to Magellan.

But, if every owner of a unit that does have a battery bleed-off problem while shut down sends a complaint and request for repair, replacement or refund to Magellan, I assume they would have to notice that they have a real problem with many of their units.

Who knows, they may send new units out that do not have the problem and everyone will be happy. 🙂

Of course a refund may be out of the question with the one year warranty being expired. :dry:

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April 21, 2012
6:34 pm
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David
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I would be more than happy to forward the information if those of you who are having problems want to email me the serial numbers of the units that you are having the problems with.

David

Please send the email to Zukicacher@gmail.com

April 21, 2012
2:31 pm
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Forgive me for suggesting the obvious. If some people have a battery bleed problem and others do not. Then why does Mr. Carr or someone make a list of the serial numbers of the units with a bleed and the ones without.

It could be a problem related to a production lot and not the entire production. :ohmy:

April 21, 2012
1:13 pm
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phild31
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Comparing an older map330 to a new 510/610/710 is a prime example of comparing apples & oranges.

This problem has been reported for quite some time now.
As I suggested a long time ago on this thread if your unit is killing batteries while shut down there is something wrong with it, send it back to Magellan and demand a new one!
Not a repaired/refurbished unit!

If Magellan won't or can't fix this problem get your money back and buy a Garmin or DeLorme.

And be very loud in your complaints about a basic problem that has not been addressed by Magellan in any noticeable way!

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April 21, 2012
1:56 am
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robertkeehn
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Strangely I am getting very similar readings as you, and I had a set of alkalines go dead in 4 days. I did notic one thing. When I put in new batteries and powered up. It started indexing the databases like when not shut down properly.

I checked an older map330 gps I have and it only draws .1 milliampere when turned off

April 21, 2012
1:14 am
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phild31
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Those lithium batteries just happened to be in the unit at the time, they were partially used up.
I just tried the test again with half dead Eneloop XX rechargeables - .39 milliamps.
Then with fully charged Eneloop XX rechargeables - .83 milliamps.
Even at 1 milliamp it would take 2400 hours to drain them.
That's more than 3 months!

I'll remind you that I do not have a battery drain problem with my 710.

I tried holding the power button in to power the unit up and got 7+ milliamps also.
My unit also did not power up.
Apparently the impedance of the milliampmeter prevents the unit from powering up.

I no longer have access to good test equipment and I'm going to need an induction DC milliampmeter to do a more thorough test. The meter I used on the railroad before retiring costs over $1000, I won't be getting one soon!

I suspect the 7 milliamps was the unit trying unsuccessfully to power up and not the "power drain" issue we are looking for.

BTW, I don't see how having an SD card installed would effect the battery drain problem.
And does anyone use a 610/710 without an SD card? If so, WHY?

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