Mavic battery not charging after crash

[iRonNuke]

Hi! My Mavic Pro went into a tree and when I got it loose it went into a body of water (completely submerged). The drone was off due to the battery was drained (took like 12 hours to take it down).

The Mavic Pro starts up just fine and it seems to work fine besides it says Gimbal overload and tries to recalibrate and couldn't stabilize. I have ordered a flat cable to replace to see if that helps. Video feed is good. Last time I crashed the video feed was black and I replaced the cable and it worked just fine then.

My other problem is that the battery doesn't charge. It starts blinking like 16 times and then no blinking for 10 seconds and repeat (have tried over night). When I press the button on the battery it blinks so it isn't completely dead. Any clues?

 

[AeroJ]

I bet those 16 blinks means something specific, and these warnings are put there for our general safety and benefit, but I have never seen a published list of DJI battery error codes myself.

Personally I would have great difficulty trusting a battery that had been fully submerged at any point, even it wasn't doing charging errors, despite hearing about a few people that seem to have got away with it over the years.

Trouble is you can't know how far water got into that pack without almost completely disassembling it, and if there is moisture remaining or corrosion that has been started, that could well be ongoing, and result in failure of the battery at any time in the future, so you'd be trusting something unknown. It might be fine for a while, until one day it isn't, and let's hope you're not in the air at the time, or that battery isn't lying about at home setting fire to stuff while you sleep !

I know it's a bummer to lose packs this way, especially when they are expensive brand-specific ones, but I suspect the cost of a new one might be worth the peace of mind.

 

[Felix le Chat]

I bet those 16 blinks means something specific, and these warnings are put there for our general safety and benefit, but I have never seen a published list of DJI battery error codes myself.

Personally I would have great difficulty trusting a battery that had been fully submerged at any point, even it wasn't doing charging errors, despite hearing about a few people that seem to have got away with it over the years.

Trouble is you can't know how far water got into that pack without almost completely disassembling it, and if there is moisture remaining or corrosion that has been started, that could well be ongoing, and result in failure of the battery at any time in the future, so you'd be trusting something unknown. It might be fine for a while, until one day it isn't, and let's hope you're not in the air at the time, or that battery isn't lying about at home setting fire to stuff while you sleep !

I know it's a bummer to lose packs this way, especially when they are expensive brand-specific ones, but I suspect the cost of a new one might be worth the peace of mind.

Concur 100%. Your flooded battery is a liability. Don't try and recharge it: dump it in a bucket of salt water for 24 hours and chuck it in the bin.

 

[AMann]

Concur 100%. Your flooded battery is a liability. Don't try and recharge it: dump it in a bucket of salt water for 24 hours and chuck it in the bin.

Hi @iRonNuke, these are good suggestions for safety- but it’s best to properly recycle batteries and not throw them into the regular trash. To ensure it is safely drained, it’s a good suggestion to use the salt water method that Felix suggested first. Good luck on the repairs and safer flying next time!