- No. 43, Yushan Road, Huqiu District, Suzhou City, Jiangsu Province, China
- +8613671928471
- dafuli01@ebikeserviceparts.com
36V 5.6Ah/7Ah & 48V 5Ah range extender battery backup for e-bikes. Cylinder 79×79×249.5mm, Li-ion 13S4P with Samsung/LG cells, 15A/20A BMS. USB port, power indicator. Fits 250W-500W fat tire, road, mountain, city & folding bikes. With charger.
✅ Motor: 250W – 500W
✅ Bike Types: Fat Tire Bike, Road Bike, Electric Bike, Mountain Bike, City Bike, Folding Bike
✅ Voltage Options: 36V (5.6Ah / 7Ah) & 48V (5Ah)
✅ Works as backup battery or range extender on most standard e-bike systems
✅ Range Extender Design: Compact cylinder pack (79 × 79 × 249.5 mm) — easy to carry as a spare battery for extra mileage.
✅ Multiple Capacity Options: 36V 5.6Ah, 36V 7Ah, 48V 5Ah to match your power needs.
✅ Premium Cells: Samsung / LG / China-brand 18650 cells (2600mAh – 5000mAh options).
✅ BMS Protection: 15A / 20A battery management system for safe charging and discharge.
✅ USB Port: Convenient USB charging port for phones and devices.
✅ Power Indicator: On-board LED shows remaining charge.
✅ Charging Port & Switch: Dedicated charging port and power switch for easy use.
✅ Discharge Port: Standard discharge connector with clear polarity.
| Parameter | Value |
|---|---|
| Nominal Voltage | 36V / 48V |
| Nominal Capacity | 5.6Ah / 7Ah / 5Ah |
| Cell Type | Li-ion (Samsung / LG / China Brand 18650) |
| Composed Type | 13S4P |
| Cell Options | 2600mAh / 3000mAh / 3500mAh / 5000mAh |
| Size | 79 × 79 × 249.5 mm |
| BMS | 15A / 20A / 25A |
| Fit Motor | 250W – 500W |
| 36V Charger | 42V 2A |
| 48V Charger | 54.6V 2A |
| Model | Voltage | Size | Charger | BMS | Cells |
|---|---|---|---|---|---|
| 36V 5.6Ah | 36V | 79×79×249.5mm | 42V 2A | 15A/20A | Li-ion |
| 36V 7Ah | 36V | 79×79×249.5mm | 42V 2A | 15A/20A | Li-ion |
| 48V 5Ah | 48V | 79×79×249.5mm | 54.6V 2A | 15A/20A | Li-ion |
Product Name: E-Bike Range Extender Battery Backup
Nominal Voltage: 36V / 48V
Nominal Capacity: 5.6Ah / 7Ah / 5Ah
Composed Type: 13S4P
Battery Cell: Samsung / LG / China Brand 18650 (2600–5000mAh)
Size: 79 × 79 × 249.5 mm
BMS: 15A / 20A (25A option)
Fit Motor: 250W – 500W
36V Charger: 42V 2A
48V Charger: 54.6V 2A
Compatible Bikes: Fat Tire, Road, E-Bike, Mountain, City, Folding
USB Port: Yes
Power Indicator: Yes
We specialize in mid-drive motors and e-bike parts. Strict testing, powerful R&D and flexible OEM service guarantee long-term cooperation.
It used to take me weeks to hunt down hard‑to‑find e‑bike spare parts. Their compatibility‑check technical support saved me countless repair headaches. Reliable supplier I can always count on.
For more FAQs and further details, please get in touch with us
We supply genuine OEM parts and premium compatible aftermarket replacement parts for e-bikes, including motor components, controllers, throttles, PAS sensors, wiring harnesses, connectors and Bosch form-factor batteries.
We serve mainstream drive system manufacturers: Ananda, Bafang, Aikema, Tongsheng, Shengyi, Bosch and more. We also provide repair components for complete e-bike brands including Sur‑Ron, Aventon, Trek and many others.
All items are brand-new and inspected before shipment. We do not supply second-hand or refurbished goods.
Our team verifies compatibility according to your bike model, motor info or original part photos. We confirm available OEM parts or recommend workable alternative solutions.
Yes. Flexible order sizes are supported, ranging from single spare parts to bulk purchases.
Sea freight, air freight and rail transport are optional.
Lead time varies by item and shipping mode. We confirm exact timelines before each order and share tracking updates.
We provide part identification, model matching and full order follow-up support.
