M17x R2 batteries are impossible to find. I am trying to disassemble my battery and rebuild it. I may have killed the circuit board inside. Does anyone have a R2 battery that i could get the circuit board from. The R2 battery has a smaller connector that the R3 and R4 battery and the connector is not centered like the others. These are pics of the empty shell. The connector is off to the left on m17x R2 batteries so R3 and R4 are different quite a bit.