Color: green Material: PCB Continuous working current: 15A Upper limit instantaneous current: 23A Overcharge voltage range: 4.25v 0.05v Over-discharge voltage range: 2.5v 0.05v Short circuit protection: YES Precautions: 1.Strictly according to the diagram wiring,Otherwise it will cause damage to the chip. 2.After connection,it need to first charge activation, then will have the output. Attention: Do not mix the good battery and poor battery to use. The internal resistance of 3 battery capacity are closer will be better. Package Contents: 5 x PCB 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 picture a little different from the real thing. The measurement allowed error is 1-3cm. Features: Module name: 3S 12.6V Li-ion Lithium Battery 18650 Charger Protection PCB Board Suitable range: For nominal voltage 3.6V 3.7V lithium battery(Including 18650,26650, lithium polymer batteries) Charging voltage: 12.6-24V Maximum output current: 20A Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.