Battery Dead after long storage

[AlanTheBeast]

My own neglect is likely the cause. 1 out of 3 of my Phantom 4 pro batteries will not charge.

When I pressed the battery power button briefly, all four LEDs blinked very briefly and went out.

While 2 of the batteries charged normally, the other one has not charged at all. All lights are off.

I tried initially charging with the 3 station charger (DJI), and finally with the charger directly connected to the battery.

Left it there for hours. Connected and disconnected several times.

I suspect because I stored it for too long (about 14 months) it self discharged to the point where charge cannot be initiated.

Is there a procedure to bump around this?

Will DJI repair it? (It is out of warranty, obviously).

I'll also be asking a Canadian vendor if they repair these batteries.

Thx.

 

[solentlife]

Check out Hibernation Mode for DJI batterys ...

 

[msinger]

Will DJI repair it? (It is out of warranty, obviously).

No. You'll need to dispose of it and purchase a new battery.

 

[AlanTheBeast]

Check out Hibernation Mode for DJI batterys ...

Unfortunately not that. Per the DJI instructions that would show a red light. Leave alone for 5 minutes. Then it goes off. Then you can recharge.

Thanks for the short lived 'hope blip' in any case!

I'll probably take it apart and see if I can use a Li-ion charger to bring each cell up slowly. I've recovered 18650's before this way.

 

[AlanTheBeast]

No. You'll need to dispose of it and purchase a new battery.

Bummer. I have two still alive. That's enough for now.