Battery Life when using GPS+Glonass

Did you power off the watch between when it was full charged and when you saw the 67%. If so then don't next time. There's a bug where you get (more) battery drain when the watch is powered off. If you did turn it off this would explain the fall in battery.

CW

320

Did you power off the watch between when it was full charged and when you saw the 67%. If so then don't next time. There's a bug where you get (more) battery drain when the watch is powered off. If you did turn it off this would explain the fall in battery.

CW

No, I didn't power it off at all. :(

Had it fully charged at noon, didn't wear it, took it for a run in the evening, plugged in a charger, saw 67%

Are you using and ConnectIQ apps or watch faces?

CW

I own a brand new Garmin 235, it's less than 2 months old.

Today I had it fully charged 100%. In the evening, I went for an hour of running with GPS+Glonass turn on.

When I came back and plug the charger in, it's 67% !!

Oh, so this mean if I'm going for a marathon I should turn on only GPS right ?

I'd like to know, is GPS+Glonass mode really effect the battery that much.

1 hour 33%, but Garmin said 11 hours. So if I turn on only GPS will it really last for 11 hours ??

Sounds odd... I had 98% ....ran 2h 45min. Gps and glonass and bluetooth....result: 78% sounds like you have a drainage.

Are you using and ConnectIQ apps or watch faces?

CW

No not at all...

Is there anyway to fixed this. Restore defaults, formats, reset ?

Claim for the warranty ? Actually on the day I went for purchased, it was perfectly new, sealed safely in its original box

Try a non-vol clear also known as resetting to factory settings. (After you have synchronised as it wipes everything). Then charge to 100%, then go for a run. That's what I would do

CW

What firmware version are you using? My watch was bought and first used after FW 4.1 was out - so I didn't experience any of the early 'beta' issues... just the later beta issues :) lol

Connect via cable to a computer with Garmin Express installed for update.

Problem Solved

Thanks everyone, I had tried all of your recommendation.

Finally I called Customer Services of Garmin, Thailand.

They advised me to do a hard reset after firmware upgraded. They also gave me instructions of how to do so.

The problem is solved I went out for a run 1hr 3min using only GPS and also do some walking 15 min in nonGPS mode.

10% is gone. So it's look like to be okay.

For those who experience the same problem, Hard reset is done by.

HardReset
1. Turn off the device.
2. hold 3 buttons, power, runner, laps.
3. When the screen is on release power button.
4. When you hear a beep release runner button.
5. When you hear another beep release laps button.
6. Wait for device to fully start and do the set up.
**Notes : This deletes everything on your device, be sure to transfer data before doing so.


Again Thank you everyone for every suggestion :)


More Question : Anyone know how much more battery will be consumed with Glonass turn on ??

I've heard that its about another 10-20% more when you've Glonass on too. Not sure if this true or not.

Thanks everyone, I had tried all of your recommendation.

Finally I called Customer Services of Garmin, Thailand.

They advised me to do a hard reset after firmware upgraded. They also gave me instructions of how to do so.

The problem is solved I went out for a run 1hr 3min using only GPS and also do some walking 15 min in nonGPS mode.

10% is gone. So it's look like to be okay.

For those who experience the same problem, Hard reset is done by.

HardReset
1. Turn off the device.
2. hold 3 buttons, power, runner, laps.
3. When the screen is on release power button.
4. When you hear a beep release runner button.
5. When you hear another beep release laps button.
6. Wait for device to fully start and do the set up.
**Notes : This deletes everything on your device, be sure to transfer data before doing so.


Again Thank you everyone for every suggestion :)


More Question : Anyone know how much more battery will be consumed with Glonass turn on ??

You could repeat exactly what you did above, but this time with GPS & GLONASS then compare the battery left ... that would be a pretty definitive answer I'd guess. I'd be interested.

Max