JK BMS B2A series — premium active balancing BMS with 2.0A balance current and built-in relay pre-charge circuit. Supports 8–32S configurations for Li-ion, LiFePO4, and LTO chemistries. Built-in Bluetooth with per-cell voltage monitoring via JK BMS app. RP (Relay Pre-charge) variant. The highest S-count in the B2A line.
Specs verified Jul 17, 2026
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