





52V 25Ah Hailong Downtube Battery Samsung 21700 Cells - 50A BMS for 500W-2600W Motor - UK Stock
- High Performance: Compatible with 500W - 2600W motors.
- Premium Cells: Genuine Samsung 21700-M50 cells for reliability.
- Smart Protection: 50A Continuous discharge
- Complete Kit: Includes 58.8V 3A Charger & cables & 5PIN holders.
Product Description
Power your ride with confidence using our 52V 25Ah Samsung Downtube Battery. Featuring premium Samsung INR21700-M50 cells, this pack offers the perfect balance of massive range, safety, and lifespan for UK e-bike enthusiasts.
🏆 Why Samsung Cells Are Worth It
Cheap batteries degrade quickly. We use genuine Samsung M50 cells (5000mAh), known for their incredible cycle life and safety.
It's the ideal upgrade for Bafang BBSHD 500-2600W kits, giving you higher top speeds and sustained power without voltage sag.
🛠️ Perfect Downtube Fitment
Designed with the classic Hailong (Polly) case, this battery mounts securely to your bike's water bottle eyelets on the downtube. The sleek design keeps the center of gravity low for better handling.
⚡ High-Discharge 50A BMS
Unlike standard batteries limited to 30A, this beast comes with a 50A Continuous BMS. This means it can easily power motors from 500W up to 2600W without overheating or cutting out.
Technical Specifications
| cell Type | Samsung INR21700-M50 (5000mAh) |
|---|---|
| configuration | 14S 5P (14 Series, 5 Parallel) |
| nominal Voltage | 52V |
| nominal Capacity | 25Ah (1300Wh) |
| bms Rating | 50A Continuous |
| output Power | Supports 500 to 2600W Motors |
| charging Voltage | 58.8V |
| discharge Cutoff | 42V |
| connector | XT60 |
| battery Pack Size | 368*95*150mm |
| weight | Approx. 8kg |