DollaTek 2Pcs battery protection board 3S 12V 40A lithium charger BMS with equilibrium charging

This lithium battery protection board is an intelligent lithium cell management IC for fast and safe charging. By charging the scale to balance the properties of the individual batteries in the battery pack and to extend the life of the battery. Offer a variety of protection features including overcharge, overcharge, overcurrent and short circuit protection. Equipped with thickened aluminum fins for quick heat dissipation This product has been subjected to a load and aging test for quality assurance.