Bricked Battery Work Around

[TedS011]

Had the 2 middle lights on one of my batteries tonight. I believe the battery died during a DJI Go update. In my many attempts to try to charge it, the multi-charger would not do it (little light turns RED). Turns out the multi-charger is pretty smart...knows something is wrong with the battery. It also turns out the car charger is NOT that smart. About 15 minutes in the car gave it enough juice to get the update. I used the assistant this time and...SUCCESS!

 

[HighlandsVideo]

By success, do you mean you have achieved full charge and flown the battery out?

I would be very reluctant to trust that battery again. Could be the smart charger knows something I don't. I've seen lipo batteries charge just fine but refuse to discharge at anything close to the required rate. Internal resistance between the cells builds up under certain conditions.

If the problem was with the monitoring and self discharge circuit and your upgrade managed to reset that, I could feel better about it because that doesn't directly involve the battery cells.

I would hover it at minimum altitude all the way to 30% just to be sure.

 

[Callum]

By success, do you mean you have achieved full charge and flown the battery out?

I would be very reluctant to trust that battery again. Could be the smart charger knows something I don't. I've seen lipo batteries charge just fine but refuse to discharge at anything close to the required rate. Internal resistance between the cells builds up under certain conditions.

If the problem was with the monitoring and self discharge circuit and your upgrade managed to reset that, I could feel better about it because that doesn't directly involve the battery cells.

I would hover it at minimum altitude all the way to 30% just to be sure.

Good advice.

Always worth being cautious where batteries are concerned.

 

[Youser]

If you just started the update again it would've solved the problem. Some times the battery FW is incompatible with the FW of the Mavic you are updating to.

When you restart the update, it updates the battery first then completes the AC update.

** If this is the case, you'll have to update all your batteries through Assistant.

 

[TedS011]

By success, do you mean you have achieved full charge and flown the battery out?

I would be very reluctant to trust that battery again. Could be the smart charger knows something I don't. I've seen lipo batteries charge just fine but refuse to discharge at anything close to the required rate. Internal resistance between the cells builds up under certain conditions.

If the problem was with the monitoring and self discharge circuit and your upgrade managed to reset that, I could feel better about it because that doesn't directly involve the battery cells.

I would hover it at minimum altitude all the way to 30% just to be sure.

Ok, will do. The battery did fully recharge on the smart charger but I will still fly with caution. Thank you

 

[TedS011]

If you just started the update again it would've solved the problem. Some times the battery FW is incompatible with the FW of the Mavic you are updating to.

When you restart the update, it updates the battery first then completes the AC update.

** If this is the case, you'll have to update all your batteries through Assistant.

Yes, the update synced up the FW with the craft and battery.