| select | for Ternary Lithium Battery |
|---|---|
| Brand | Unbranded |
| Type | Fast Charging Module |
| Marke | Markenlos |
Check the listing for details. 4S PD 100W Bidirectional Fast Charging Module Charging Discharging Board 20V 5A. Condition: New. Listed at 12.64 USD. The motherboard only has + and -, and soldering while powered can easily cause burns due to hand tremors. The motherboard's two wires cannot balance the battery; the balancing and protection function is on the lithium battery protection board.