Li-ion 18650 Battery Charger PCB BMS Protection Board 12.6V with Recovery

This is a 20A lithium-ion battery charger and protection circuit board designed for 18650 rechargeable batteries. It features a 12.6V module with built-in BMS (Battery Management System) for overcharge, over-discharge, and short-circuit protection. The charger includes an auto recovery function, allowing it to automatically restore the battery's safety status after any protective condition is triggered. Suitable for DIY projects, battery packs, and electronic applications requiring reliable and safe lithium-ion battery management.

MS 3 series 12.6V 20A lithium battery Safeguardion wild pigd (with recovery function auto recovery) 3 series 12.6V 20A lithium battery Safeguardion wild pigd (with recovery function auto recovery) Scope of application:lithium battery withnominal voltage of 3.6V and 3.7V (including 18650,26650 and polymer lithium battery)Product size:59*20*3.4mm Product weight: 4.3G Charging voltage:12.6V-13.0v Continuous discharge current (upper limit): 20A (if the heat dissipation environment is bad, please reduce the load current) Continuous charging current (upper limit): 10A Standard Version: applicable to electricdrills with starting current below 40A and power below 65W.Note 1:three 15c-20c power batteries orsix 10c-15c power batteries are required to successfully start the electric dill (the ordinary 18650 cannot start the electric drill!!)If the battery is too small or the power ofthe electric drill is too large, please contact the shopkeeper to tell you the solution. Note 2: connect 0V, 4.2V, 8.4v and 12.6V instrict accordance with the diagram.Do not intentionally short circuit.Note 3:for loads with brush motors,a capacitor(10uf-1000uf)must be connected in parallel at the positive and negative terminals of the motor to prevent the reverse peak voltage generated by the motor from interfering with the Safeguardion wild pigd or breaking down the MOS tube. Note 4: when three batteries are connected in series, please ensure that the voltage of each battery is the same. If not, please fill each battery separately and use it in series...During the discharge test, the battery whose voltage drops faster is a poor battery. For some customers with poor electronic foundation, please explain: do not mix good batteries with poor batteries! The closer the capacity / internal resistance of the three batteries is, the better ( Use effect of 2 good batteries + 1 poor battery = use effect of 3 poor batteries).For some customers with poor electronicfoundation,please explain:do not mix good batteries with poor batteries! The closer the capacity / internal resistance of the three batteries is, the better ( Use effect of 2 good batteries + 1 poor battery = use effect of 3 poor batteries).Conditions for successful start of electric drill: 1. Three 15c-20c power batteries or six10c-15c power batteries are required (Ordinary 18650 cannot start the electric drill!!! 2. The distance between the battery paand the Safeguardion wild pigd shall be as short as possible,and the wire cores shall be in phase as far as possible. 3. When welding the battery for the first time, the output terminal shall not be connected with any load or any equipment.4. If it still cannot be started, please contact the shopkeeper again to tell you the solution.Standard Version: applicable to electric drills with starting current of 40A and power below 65W f the battery is too small or the power of the electric drill is too large, which makes it impossible to start, please contact the shopkeeper again to tell you the solution.