technology, stable heat dissipation. Over- protection, over-discharge protection. Integrated solution, charging protection. Short-circuit protection, over-current protection. Made of high quality material, durable. Type: ternary/4 strings/14.8V Wiring : same port Single battery over-discharge : 2.40V0.01V Single battery over-discharge : 3.0V0.075V Over-discharge delay: 60mS Short circuit protection delay: 600us Continuous working current: 40A (20 seconds) Instantaneous protection current: 100A (can electric drill) Over-current conditions: charging or disconnecting the load Short circuit conditions: charging or disconnecting the load Single battery overcharge : 4.28V0.05V Single battery overcharge : 4.08V0.05V Overcharge delay: 150mS 20A version continuous charging current: 25A Charger : 16.8V (recommended) Balanced : 4.2V0.015V Balance current: 42MA Material: PCB colour: Green Package Contents: 1 x Battery Protection Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.