🔋 Reliable Power, Perfectly Designed for Folding & City E-Bikes
The GeB SF-Series Silverfish battery provides essential, reliable power without disrupting the bike's folding mechanism or primary frame space. This globally recognized casing style, optimized by GeB, ensures you get maximum convenience and robust security without compromise.

Charge Port: CANNON/DC/RCA
Discharge Port: 3Pin/4Pin (Standard)
Power Switch: Yes
USB Port: No
Choosing the right battery depends on your riding style and desired range. Here’s a quick guide:
Compatibility Check: All models are compatible with 250W to 500W motors. Please verify the dimensions to ensure a perfect fit on your bike rack.
| Model | HBYY (Silverfish Rear Rack) | |||
|---|---|---|---|---|
| Parameter | 48V13AH | 48V15AH | 48V20AH | 48V23.4AH |
| Permutation | 13S5P | 13S6P | 13S8P | 13S9P |
| Cell Type | EVE/DMEGC | |||
| Cell Capacity | 18650-2.6AH | |||
| BMS (Continuous) | 20Amp | |||
| Fit Motor Power | 250-500W | |||
| Cut-off Voltage | 36.4V | |||
| Charging Current | 2-3A | 3-5A | ||
| Dimensions (MM) | 370*134*75MM | 370*134*75MM | 435*134*75MM | 455*134*75MM |
| Battery Weight (Kg) | 4.3Kg | 4.9Kg | 6.2Kg | 7.0Kg |
Every GeB battery is meticulously assembled and rigorously tested, governed by strict ISO:9001 quality management systems. We use only brand new, Grade-A cells from world-renowned manufacturers.


With over a decade of experience since 2008, GeB isn't just a brand; we are innovators in lithium-ion power solutions. Our reputation is built on the success of our customers and the reliability of our products.