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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.

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