I heard my name called and came running
One of my MP1 batteries gave up the ghost, and have spent weeks looking at various options and trying different things. In the end I had to accept it needed either new cells or replacing.
I started down the route of new cells, and again spent 100’s of hours going through sites, talking to suppliers all over the world. In the end I came to the realisation that with what it would cost me to get new cells and then open up the case and replace, the better option would be to replace.
Replacing is not an easy option as DJI seem to have stopped production of the MP1 batteries, but there are 3rd party MP1 batteries to be had on Amazon.co.uk
Initially I didnt fancy the idea, but having spoken to a dozen or so different users who purchased 3rd party batteries, the general feeling was that they were as good as DJI.
£100 is a lot to shell out, but if we want to keep on flying the MP1, I dont see that there is much choice.
You can get them off ebay, but these days I stick to Amazon as they have a fantastic returns policy, so at least you wont get stuck if you give them some hammer once you get them, if you feel they are not performing, you can always return them under the Amazon returns path.
There was another option I looked at, which refurbished dodgy cells, its called the "Phantom Angel", which discharges batteries in the proper manner, and the seller did say that its recovered a lot of batteries that would have otherwise been binned, but could not guarantee it would recover the battery in my case. Similar price to the MP battery, if I was a heavy user then I would have invested in this, but these days I only fly occasionally
I hope this helps in some way. It would have been nice if DJI could have continued to support us MP1 flyers for a few years… But they much prefer to try and force our hand to upgrade to the new model…