Traduzione in corso passo 3
Once screws are removed, we´ll flip the battery back and gently remove the upper lid, revealing the surprising insides.
Third part is a battery pack holder, which holds 4 "18650" Li-ion cells together, including a tiny PCB with metal connector claws and two resistors. We´ll gently lift the pack and put it to side. Care must be disciplined, to avoid short-circuiting the powerful cells.