KARMA Battery disassembly

[Mrdronenut]

I just got a Karma with 2 dead batteries. I tried "jump starting "them with another 4s battery, but...nothing.
Has anyone taken a battery apart?
I'm thinking that if I can bypass the main board,and go straight to the + &- of the battery, that I can Jumpstart it from there.
TIA

 

[dronelover]

Batteries are dead cheap.

But i bet that karma wont work andyways. Could have a pairing issue by now.