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FW 12.1 battery drain

After update to 12.1 the device drains buttery faster. 20/30 % faster than before. i could ride for 9//10 hours and now at max 7 hours device is dead. is it possible to fix this issue?

0 oliv_sud over 4 years ago

6-7 hours would be also the max now for me

0 jjespdk over 4 years ago

Yes, same problem with at new Edge 820 (third unit on warranty) And also, the battery seems to drain totally after a day on standby. Before I could forget to turn it off, and after 4-5 days there would still be battery when turned on.

0 Patriots012 over 4 years ago

I'm also in the same boat. I'm lucky to get two hours if using navigation, 4 hours without. I ride long distances so this unit is useless now.

0 DorianoV over 4 years ago

Hi, with v 12.10 my edge 820 battery went down to 40% in 4 and a half hours with the speed & cadence (gsc10) and heart rate sensors. With v 11.20 went down to 60% in 5 and a half hours with the speed, power meter, heart rate sensors and smartphone connected via Bluetooth for display smart notifications. That's all.

0 jjespdk over 4 years ago

Yes today again. 2.5 hours outdoor cycling. No navigation, only data recording. From 100% ti 52%. Before the firmware it would have been around 75+ %. So something is wrong. The unit is 5 months old. Bluetooth was not enabled btw...

0 Former Member over 4 years ago

We have to hope the new version solve the battery drain. Garmin has released the 12.22 beta version.

0 MikeTheBike2010 over 4 years ago

Having experienced apparent battery drain with 12.1 I have also noticed that, if I put the device to sleep and then come back to it later the battery has recovered by more that 5%. This leads me to think that it’s the % reading of the battery rather than the actual capacity reducing? Don’t similar issues get reported when phone firmwares are updated - the solution often given then is to allow the battery to drain completely down to shut off and then charge to 100% to give the firmware a chance to recalibrate. I have no idea If this will work but could be worth a try?

0 9692922 over 4 years ago

I wrote again to garmin and they suggested me an hard reset. I did it and I tried my garmin after that but the result was the same. 6.5 max 7 hours battery. so I downloaded the FW 11.20 (not from Garmin because they confirmed they do not send older FW, so I found it on an unofficial website) and I tried again my garmin. the result was 10 hours riding with it. next time garmin send out an update I will wait sometime for feedbacks before to install it.

0 Cedricg_38 over 4 years ago in reply to 9692922

Anyone tried 12..22 ?

0 9322750 over 4 years ago in reply to Cedricg_38

I'm testing the 12.22...no change unfortunately...i'm thinking to downgrade to the old firmware