Is my battery toast?

[pinzmann]

So I haven’t flown my mini 2 for a while. Of the 3 batteries, one was at 0%. I charged it up to 100%. Checked the battery on controller, it showed full and 100%. Was in the air for a minute and got the low battery warning, forced landing. Luckily I was only a few hundred yds away. Now it shows 99% on controller screen and when I go into the battery page on controller it shows full bars but it won’t let me fly as it says low battery warning. Any way to discharge the battery and recharge it?

 

[Cafguy]

Sorry you cannot "bump" charge DJI batteries without damage.. If not stored correctly your batteries will die.....Yours are dead.
All you can do is replace them. When storing these batteries, keep them at 60% if possible! Never put them away for long periods without checking them frequently!

 

[Cybernaut]

I think I made the same mistake. I have not flown my Mavic Pro for quite a while. I pulled it out and tried to charge my two batteries. Neither will take a charge. One is very swollen and looks like it's ready to pop.

I thought these batteries were supposed to auto discharge to a maintenance level and hold that.

 

[Cafguy]

I thought these batteries were supposed to auto discharge to a maintenance level and hold that.

They don't discharge fast enough to prevent damage. Some will tell you differently but its true PLUS DJI's way will make you forgetful and if you let them discharge too low, The Charger will no longer recognize the Battery and it will no longer charge. In the RC airplane world we can "bump" charge our dead batteries a bit to get them to start charging again. BUT DJI batteries will cook their components if you try it with them.

 

[Kilrah]

I thought these batteries were supposed to auto discharge to a maintenance level and hold that.

They do the best they can, that doesn't mean it's eternal.

From the manual:

 

[Cybernaut]

It doesn't appear that there are any more DJI branded batteries available. The DJI site now says, "Not Available in Your Country." But I see batteries for other models still sold on the DJI site.

Mavic Pro Intelligent Flight Battery - DJI Store

Which compatible brands are pilots using? The most popular Mavic Pro battery I found on Amazon is this one:

Mavic Pro Battery, 2 Pack 3830mAh 11.4V Intelligent Flight Battery for DJI Mavic Pro/Pro Platinum/Pro White

Is anyone out there rebuilding Mavic Pro batteries?