72v Lithium-Ion Battery Building Guide - Master Books

[@Mobilant_US]

Manufacturing using new batteries ultimately saves money.

[@PirateWasHere]

Kind of good video but please remeber about 2 things. 1) do not leave sharp/square edges above positive/+ because if it bends , it could do short circuit ( 90% of the battery shell is negative ). 2) Never solder wire obove edge of the positive battery ring, it will damage the insulator, always solder on middle of the battery cell.

[@Mobilant_US]

thank you There is no problem as long as you follow the manual in the master book.