BMS 3S (12.6V -40A ) Lithium Battery Protection Module ( Balanced )

From the shop's description

BMS 3S (12.6V -40A ) Lithium Battery Protection Module ( Balanced ) is a high-quality electronic component designed for Arduino, prototyping, and educational electronics. 3S 40A BMS 11.1V 12.6V 18650 lithium battery protection Board with balanced Version for drill 40A current Specification: Overvoltage range: 4.25 ~ 4.35v ± 0.05v Over-discharge voltage range: 2.9 ~ 3.3v±0.05v Maximum operating current: 0 ~ 40A Overcurrent protection current: 70 ~ 90A Quiescent current: less than 24uA Working temperature: -40 +85 C Short circuit protection: Yes, delayed self-recovery Size: 60mm x 41mm x 1.2mm (LxWxH) Notes: Strictly according to the diagram wiring, Do not deliberately short circuit. After the wire is connected, it needs to charge the batteries first, then have output. When the battery is connected in series with 3 groups, please ensure that the voltage of each battery is the same. If not the same, please fill in each set of batteries and then use them. Do not mix the good battery and the battery. It will be better the capacity of the battery internal resistance is closer.+ It’s perfect for DIY makers, students, and anyone building custom electronic circuits or STEM kits.