Electronic system protecting 1S battery against discharging and at the same time a charger for these batteries. It allows you to build a safe battery pack that does not need to be charged with special Li-ion chargers. The 2 in 1 module will keep the cells in the best conditions, preventing them from overcharging and over-discharging. One module replaces the charger and the security module here. To build a secured cell, we offer PVC heat-shrinkable tube, packing plates, plastic housings and many more. Product features Short circuit protection. Overcharge protection. Over-discharge Protection. They can be used for various 3.7V / 4.2V lithium cells. Compact dimensions and low weight Ensure safe use of the battery Technical data Maximum charging voltage: 4.25 ± 0.05V (per cell) Minimum discharge voltage: 2.45 ± 0.05V (per cell) Max. charging / discharging working current: 6 A Dimensions (diameter x height): 16 x 2 mm https://elecena.pl/product/22620927/1s-3-7v-4-2v-6a-bms-module-for-charging-and-protection-of-li-ion-cells-for-18650-cells 2023-02-23 https://elecena.pl/product/22620927/1s-3-7v-4-2v-6a-bms-module-for-charging-and-protection-of-li-ion-cells-for-18650-cells 2025-10-29