QNUT BK20 Electric Motorbike 48V 18Ah 21Ah 24.5Ah Downtue Lithium Ion Battery for QNUT BK20 Ebike Akku
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Includes all key accessories and simple setup instructions for quick start!
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Expected arrival within 12–15 days
High-performance 48V Downtube Lithium Replacement Battery Pack custom-engineered for QNUT BK20 Electric Motorbikes and high-power e-bikes (Ebike Akku). Available in 18Ah, 21Ah, and 24.5Ah capacity options to deliver extended mileage and consistent motor power.
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Exact Downtube Fit: Plug-and-play replacement designed specifically for the QNUT BK20 frame mount.
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High-Density Lithium Cells: Grade-A cells deliver 800+ charge cycles for long-distance city and off-road riding.
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Advanced BMS Safety: Built-in Smart BMS guards against overcharging, over-discharging, short circuits, and overheating.
| Feature / Spec | Specification Details |
| Compatible Bike Model | QNUT BK20 Electric Motorbike / E-Bike |
| Nominal Voltage | 48V |
| Capacity Options | 18Ah / 21Ah / 24.5Ah |
| Case Style | Heavy-Duty Downtube Frame Mount |
| Battery Chemistry | Lithium-ion (Grade-A High Density Cells) |
| BMS Protection | Integrated 30A - 40A Smart BMS Board |
| Cycle Life | 800 - 1000+ Charge Cycles |
| Security Features | Key Lock Anti-Theft Mechanism & Power Switch |