20pcs 3.7v 1 string PCB 4A discharge IC Protection Board Welding Nickel Sheet DIY 4.2v 18650 21700 26650 Lithium Battery pack
USD 46.98USD 54.00
20pcs 3.7v 1 string PCB 4A discharge IC Protection Board Welding Nickel Sheet DIY 4.2v 18650 21700 26650 Lithium Battery pack