Important Notice:
If your existing battery is different from the one shown in the product images, please email photos of your original battery together with your order number to [email protected].
We will arrange and ship the correct battery compatible with your Fatfish DS e-bike.

The Fatfish DS E-Bike Battery is a genuine, brand-original battery designed specifically for the Fatfish DS model, ensuring correct fitment, stable power delivery, and reliable long-term performance.

Built with original Samsung 21700 lithium cells, this battery delivers strong and consistent output with excellent durability and cycle life. With a capacity of 52V 21Ah, it provides extended riding range and dependable power suitable for both daily riding and longer recreational use.

Each battery is factory-assembled and rigorously quality-controlled to meet Fatfish’s internal safety and performance standards. As an original Fatfish branded battery, it is supplied as a matched component for Fatfish e-bike systems.

Safety & Compliance Notice:

• This battery complies with IEC 62133, the international safety standard for rechargeable lithium battery systems.

• Designed for use with compatible Fatfish e-bike systems when installed and operated according to manufacturer instructions.

• Must only be used with approved compatible chargers and controllers.

• Modification, misuse, or use with non-compatible systems may affect safety and battery performance.

Key Features:

• Original Samsung 21700 lithium cells

• Voltage / Capacity: 52V 21Ah

• Brand-original Fatfish battery for DS model

• IEC 62133 compliant lithium battery system

• Stable power output and long cycle life

• Factory assembled and quality tested

• 1-year manufacturer warranty

Choose the Fatfish DS original battery for assured compatibility, extended range, and dependable performance backed by the Fatfish brand.