Smart BMS for 3S and 4S Li-Ion Battery Packs, 12V Class, 400A Peak, 1A Active Balancing, Bluetooth Monitoring, Inductive Energy Transfer, Keeps Cell Gaps Under 10mV, DIY Battery Builds
✔️ 3S/4S support, 1A active balancing, Bluetooth monitoring
This compact BMS module supports 3S and 4S Li-ion packs and is suitable for 12V-class applications. It works with Li-ion, LiFePO4, and LiPo cells and is ideal for DIY battery builds powering portable power stations, e-scooters, solar storage, RV backups, and outdoor devices.
✅ Supports 3S/4S Li-ion, LiFePO4, LiPo cells
✅ Inductive energy-transfer active balancing with 1A current
✅ Keeps cell voltage gaps under 10 mV
✅ 12V-class operation with real-time millisecond monitoring
✅ 400A peak current capability
✅ Built-in protections: overcharge, over-discharge, over-current, short-circuit, over-temperature
💡 What is a handy use case for a BMS in DIY 12V packs? This quick FAQ explains practical benefits for 3S/4S configurations: - Protects cells from overcharge and over-discharge - Monitors voltages in real time for safe operation - Balances cells via inductive energy transfer to minimize heat
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