BMS 7S 15A Li-ion Protection Board

Compact BMS (Battery Management System) 7S 15A protection and balancing module designed for assembling and safely operating low-power 24V battery packs based on Li-ion cells (18650, 21700, etc.). Protection and balancing: Continuously monitors each of the 7 cells, preventing overcharge above 4.25 V, overdischarge below 2.75 V and short circuits, and equalizes cell voltages during charging. Common Port: Load and charger are connected through unified power terminals (C- / B-), which greatly simplifies the switching circuit. Compact and reliable: Suitable for low-power electric transport, 24V backup power supplies, portable speakers and LED lighting. Features Configuration: 7S (7 Li-ion cells in series, nominal 25.2 V / 25.9 V, full charge 29.4 V) Battery type: Li-ion / Li-Po (3.6 V / 3.7 V per cell) Maximum discharge current: 15 A (long-term) Maximum charge current: 8 A Port type: Common Port (Common Port: B-, C-) Balancing function: Yes (With balance) Overcharge protection threshold: 4.25 V ±0.05 V Overdischarge protection threshold: 2.75 V ±0.1 V Protection: Against overcharge, overdischarge, short circuit, overcurrent, and thermal protection (external NTC sensor) Package contents: BMS 7S 15A board, balancing lead with connector