Electronic system protecting Li-ion batteries 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 module will prevent too much discharge and will not overload the connected cells. This is one convenient solution that will keep your package goals at its best. Technical data Over charge protection: 4.25-4.35v ± 0.05v (per cell) Over-discharge protection: 2.3-3.0v ± 0.05v (per cell) Maximum working current: 4-5A Maximum peak current: 6-7A Working temperature: -40 + 50 C Small Current: Less than 3uA Life cycle: more than 50,000 hours Resistance: Less than 45mΩ Dimensions: 38 * 8 * 2.5mm https://elecena.pl/product/22621173/2s-8-4v-5a-bms-pcm-pcb-module-for-charging-and-protection-of-li-ion-18650-cells 2023-02-23 https://elecena.pl/product/22621173/2s-8-4v-5a-bms-pcm-pcb-module-for-charging-and-protection-of-li-ion-18650-cells 2025-10-29