US Direct Hailong Battery Pack 48V 40A BMS Downtube 21700

Power your ride with a versatile 48V battery pack designed for long-lasting e-bike performance.

• You can choose from 13Ah (624Wh) to 30Ah (1440Wh) in 13S configurations, with 65–78 cells across 65PCS/52PCS/78PCS variants to balance range and weight.
• With a 40A BMS, you get robust protection: over-current, over-voltage, overload, over-discharge, over-charge, temperature control, and precise cell balancing.
• You’ll enjoy broad motor compatibility, pairing with popular downtube motors like BBS02B/BBSHD, TSDZ2B, H400B, and other 48V systems for versatile builds.
• You benefit from CE certification, CC/CV charging, wide discharge and load temperature ranges (-15 to 65°C, 0–45°C), 1000+ life cycles, and a one-year warranty.