Hello Ivan,
Try to discharge each battery until the battery turns off ( 8% ) then fully charge it to 100%
And see if that helps. Usually when a battery fails, one cell ( #1/2/3 ) is usually quite a
Bit different than the other 2, yours all look pretty close.
Example:
Cell #1 3972 Mv
Cell #2 3964 Mv
Cell #3 2473 Mv
What happens is cell#3 will reach 0 Mv before the other 2 cells, and the smart battery will think
The whole battery is dead, and on the opposite side of the coin, when you charge, cell #'s 1 & 2
Will take a full charge before cell #3, so smart battery will think it is fully charged, when in
Fact it ain't!
I started working on a way to refresh bad batteries, but requires disassembly ( partly anyway )
Of the battery, once circuit board is reached, unplug it for 24 hours, and battery will be reset to 0 charges 100% life. But this does not fix individual cell Mvs. So this is where I quit, but if you remove each individual cell lead, and use a lipo balancer ( good one ) to bring each cell to 4000 Mv, once all 3 cells are balanced, reattach leads, reset battery ( as it should already be ) as we were balancing our cells, and your battery should be good again, IN THEORY! I never finished the project, but I'm sure it would work. The reset works beautifully, but balancing the cells, that is another story! ( I don't have the right equip to perform the task, and finally find a solution for bad batteries. ) if someone knows how to balance cells or has the means, I'd supply batteries, ready to balance. I'll do the disassembly, and prep work, just want to see if it will work. But that is as far as I got, before app / camera burnout stated happening, so I focused my attention at reverting apps.
But try discharge ( completely ) battery will turn itself off at 8% ( app might show 0 ) but that is not true.
Battery turns off at 8%. Then fully charge to 100% might help? And worth a try.
Batteries should be stored at 40-60% ( never full, or dead ) for future reference.
J Dot