12V 3S 7P 40A Li-ion Battery Pack DIY Kits Case Holder BMS for Power Wall

3S40A BMS：. 1 3S40A BMS. 1.18650 Li Battery Nickel Strip Plate Belt Connector SheetUsed for battery connection sheet, lead-out sheet. 1 1 set 12V 3S7P Battery Box. 18650 AA Battery 4 welding Nickel：. 4 welding Nickel.

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