5S 15A 18650 Lithium Battery Protection BMS Module

The 5S 15A Lithium Battery Protection Board is designed to protect 5-series (5S) 18650 lithium battery packs from common electrical faults such as overcharge, over-discharge, overcurrent, and short-circuit conditions. It ensures safe and stable operation of multi-cell battery packs by balancing individual cell voltages and preventing damage caused by improper charging or excessive load. Ideal for DIY battery packs, e-bikes, power banks, energy storage systems, and portable electronics requiring reliable multi-cell protection.Features:Protection for 5-series (5S) 18650 lithium battery packsSupports continuous discharge current up to 15AProvides overcharge, over-discharge, overcurrent, and short-circuit protectionBuilt-in cell balancing function for longer battery lifeEnsures stable and safe battery operation during charging and dischargingCompact PCB design for easy integration into battery packsSuitable for e-bikes, power tools, DIY battery packs, and energy storage applicationsSpecifications:Battery Configuration: 5S (5 × 3.7V lithium cells in series)Input Voltage (Charging): 21V – 22VNominal Pack Voltage: 18.5VOperating Voltage Range: 15V – 21VContinuous Discharge Current: 15APeak Current: 25A – 30A (varies by model)Overcharge Protection:Cutoff Voltage: ~4.25V per cellRelease Voltage: ~4.15V per cellOver-discharge Protection:Cutoff Voltage: ~2.7V – 2.8V per cellRelease Voltage: ~3.0V per cellOvercurrent Protection: ~25A – 35A (batch dependent)Short-Circuit Protection: Yes (auto recovery)Balancing Function: Yes (passive balancing)Balance Current: 30–50mA (typical)Operating Temperature: –20°C to +60°CPCB Size: Compact board (varies slightly by batch)Applications: E-bikes, power tools, solar storage, DIY power banks, robotics, and battery backup systemsPackage Includes:1 × 5S 15A 18650 Lithium Battery Protection BMS Module

INR 109 · In stock