The **GeB FY 48V 17.5AH Battery** redefines the standard e-bike power pack by seamlessly integrating essential safety and convenience features directly into its design. This battery delivers robust **48V** power with a substantial **17.5AH** capacity, ensuring extended range for riders using motors up to **500W**. What truly sets the FY series apart is the **integrated rear taillight** and a dedicated **USB charging port**. These functional additions enhance rider visibility and allow for on-the-go charging of mobile devices, merging power delivery with essential utility.
Performance is guaranteed through the use of high-quality **LG/Samsung 18650-3.5AH cells**, ensuring a stable and enduring power curve. This 48V model is built with a **13S4P permutation**, which is optimized for energy retention and longevity. Despite its high capacity and integrated features, the FY battery maintains a remarkably low profile and weight, coming in at just **3.6Kg** and featuring manageable dimensions (435*148*78MM), making it an excellent choice for minimizing overall e-bike weight and maintaining clean aesthetics.
The pack is protected by a professional **20A BMS**, meticulously calibrated to handle the continuous current required by 250W to 500W systems. The BMS provides essential safeguards, including monitoring the **36.4V cut-off limit**. Connectivity is versatile, featuring **DC5521/DC5525/3Pin Charge Ports** and **2Pin/6Pin Discharge Ports**. This robust internal management, combined with GeB's 16 years of manufacturing precision, delivers a truly dependable power source.
GeB is recognized globally as a specialized, high-volume manufacturer dedicated exclusively to lithium battery technology. Our operational history spans **sixteen years**, a period during which we have honed every technical and quality aspect of battery production. This specialization is the cornerstone of our brand, ensuring that our products, like the innovative FY series, are engineered with deep expertise that general electronics companies simply cannot match. Our focus on lithium power translates directly into superior product safety, reliability, and longevity for our clients.
Quality is embedded in every stage of our manufacturing process. We adhere strictly to international standards, beginning with the meticulous selection and **impedance matching of all LG/Samsung cells**. Automated, precision **spot welding with pure nickel tabs** ensures minimal internal resistance and maximum durability against vibration. Every pack's BMS is individually tested and calibrated. Crucially, the final product undergoes a **full charge/discharge cycle test** to validate true capacity and safety performance before it leaves our facility. This commitment to detail guarantees that the FY battery will perform reliably in the real world.
We actively partner with global e-bike brands, offering scalable manufacturing solutions and expert technical consultation. Our commitment to using high-tier cells and maintaining strict quality control provides our OEM clients with a competitive edge. We extend a formal invitation to potential partners worldwide to **visit our manufacturing plant**. Witnessing our precision assembly, sophisticated testing protocols, and dedicated team will reinforce your confidence in GeB as your long-term lithium power specialist.
| Parameter | 36V 13AH | 48V 17.5AH | 48V 10.4AH | 48V 14AH |
|---|---|---|---|---|
| Nominal Voltage | 36V | 48V | 48V | 48V |
| Nominal Capacity | 13AH | 17.5AH | 10.4AH | 14AH |
| Cell Capacity | 18650-2.6AH | 18650-3.5AH | 18650-2.6AH | 18650-3.5AH |
| BMS Current | 20Amp | |||
| Fit Motor Power | 250-500W | |||
| Cut-off Voltage | 28V | 36.4V | ||
| Charge Current | 2-3A | |||
| Dimensions | 435*148*78MM | |||
| Battery Weight (Approx.) | 3.5Kg | 3.6Kg | 3.6Kg | 3.6Kg |
| Unique Features | Integrated Taillight & USB Port | |||
Choose GeB for integrated safety, superior range, and professional lithium quality.