OTOTEC 6PCS Lithium Battery Protection Board 2S 8A 7.4V 18650 Li-ion Lithium Battery Charger BMS Protection Board 40.8x8x2.1mm Used for LED Light Backup Power Supply Solar Street Light Battery Pack

HX-2S-A10 Model: Designed for optimal protection of 3.7V lithium batteries. Ensures reliable and safe operation for your battery-powered devices.
Overcharge and Overvoltage Protection: Overcharge range of 4.25-4.35v±0.05v and overvoltage range of 2.5-3.0v±0.05v. Limits working current up to 8A with a peak of 16A, preventing battery damage.
Robust Charging Specifications: Charging voltage of 8.4V-9V; static current less than 10uA; internal resistance less than 300m?; operating temperature range from -40 to +50?. Guarantees efficiency and safety in various conditions.
Important Wiring Instructions: Follow the diagram strictly: B+: battery V+ positive, B-: battery V- negative, P+: output/charging V+, P-: output/charging V-, MB: connection point between batteries. Incorrect wiring can damage the chip.
Wide Compatibility: Ideal for various 3.7V lithium batteries, massage device battery packs, LED light backup power, solar street light battery packs, and monitor backup power. Not suitable for LiFePO4 batteries, HID lights, drill battery packs, fish battery packs, electric bike battery packs, children's car batteries, 775 (4A) motors, 1W fish-eye LED lights.