... assemble the batteries packs according to the customer’s requirements. Such as 2S1P, 3S2P.Application: LED flashlight battery, cordless phone ... 8V 2400mah Rechargeable lithium ion battery pack for topcon pc, laptop ,e-tools, heater, RC car, model airplane 14.8V 2400mah ... Rechargeable lithium ion battery pack for topcon pc, laptop ,e-tools, heater ...