Features High Quality Components: The protection board is made of high quality components, with stable operation and long service life. Rapid Heat Dissipation: The protection board has strong heat dissipation capacity and low charging and discharging temperature. Multiple Protection: Our battery protection board has multiple protection functions such as overcharge protection, overdischarge protection, overcurrent protection, and short circuit protection. Sophisticated Details: The details from the inside to the outside of the protective plate are intuitively visible, and you can clearly understand every part. Security Guard: This lithium battery protection board can ensure your circuit from damage, ensure your electricity safety, and can be used with confidence. Specification: Item Type: Lithium Battery Protection Board Material: PCB and Aluminum Alloy Power Supply Current: 45A Power Supply Voltage: 52V Power: 5W Application: Lithium battery protection board Package List:1 x Connecting Cable 1 x Lithium Battery Protection Board Package List 1 x Connecting Cable 1 x Lithium Battery Protection Board