Suunto 7 - Battery issue (not a drain problem)

[ricdelorenzi]

Hello everyone!
As I say on topic title this is not a drain problem, in fact I’m able to track more than 6 hours of outdoor activities.

I bought my Suunto 7 one year ago and I usually charge it every night, so I’m not used to fully drain it’s battery. Circa five months ago I fully drained it, it wasn’t the first time, and then it didn’t turn on anymore. I tested different chargers (2A, as they suggest), different cables and nothing worked. I guessed I was unlucky and I sent it back using warranty. They changed my battery and everything was fine again.

On Wednesday I went skiing, I tracked 6h30’ activity and still had 30% of battery. While driving back home it turned off because battery dropped at 0% and then it happened again: my Suunto don’t want to start again.

I read on Reddit it happens to few user, someone talk about it as a bug. I just find it unacceptable since this is the second time in a year.

Any suggestion?
(Yes, I’m using charger with more than 1A, I press more than 30sec the turn on button. Screen just keep on sending life signs)

[A Former User]

@ricdelorenzi said in Suunto 7 - Battery issue (not a drain problem):

I usually charge it every night, so I’m not used to fully drain it’s battery

I would try a battery calibration. Discharge completely the battery and make a full charge

[cicciorunning]

@g-q The same thing happened to me a few months ago even if in a different context … S7 blocked that didn’t want to reboot … I was about to send it to assistance, but then I left it all one day attached to recharge et voilà, magically he recovered … never had the same problem again …

[ricdelorenzi]

A friend of mine was able to bring it back to life with a 5A charger. Still kinda shocked someone needs to use such a horse kick once it run out of battery

[Egika]

Usually it is not necessary to use a high amp charger as the charging circuit in the watch will never allow high currents anyway.

If the battery is in deep discharge then a state of the art charging circuit will trickle charge it until it can come back to a normal charge.
This is why it can take a long time on the charger until he device comes back to life.

Thus the recommendation for deep discharged devices is: leave it on the charger for a longer time. I would only call it defective if it does not come back after a day or so.

This does not solve the initial high discharge though…