Applicability: Designed specifically for 3 series lithium/co batteries including cobalt acid lithium, lithium cobalt, lithium and lithium polymer. Protection Features: Equipped with overcharge protection, overdischarge protection, discharge overcurrent protection and short circuit protection. Technical Attributes: Single cell overcharge protection voltage: 4.25+-0.05V. Single cell overdischarge protective voltage:2.5+-0.025V. Overcurrent protection: 40+-5A. Charging current:1-2A. NTC Functionality: Attach the temperature controller to the battery surface to detect the temperature. material: plastic Color: as shown Package Contents: 1 x 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.