HBJ 4S-8S 100A Smart BMS with Bluetooth for 24V Li-ion & LiFePO4

The HBJ 4S-8S 100A Smart BMS is a high-performance battery management system for lithium-ion and LiFePO₄ battery packs from 4 to 8 cells in series, covering 12V, 24V and the voltages between. One board handles both chemistries and every cell count in its range. That makes it a strong choice for builders and installers: the same BMS works on a 4S LiFePO₄ 12V bank, an 8S LiFePO₄ 24V bank or a 7S Li-ion 24V e-bike pack, with the chemistry and cell count set through the app. It supports 100A continuous discharge - about 2,560W on a 24V LiFePO₄ pack - for high-power e-bikes, scooters, light EVs, inverters and solar storage. Bluetooth connectivity turns the pack into something you can see. The mobile app shows each cell's voltage, total pack voltage, charge and discharge current, temperature and protection status in real time, which makes it easy to spot a weak or drifting cell before it becomes a failure, and to confirm the pack is healthy after installation. The common-port design uses a single pair of high-current terminals for both charging and discharging, which keeps wiring simple and suits systems where the charger and load share one connection, such as e-bikes and solar setups with a charge controller. Protection covers overcharge, over-discharge, overcurrent, short circuit and abnormal temperature, with cell-level monitoring behind every decision.