Sale

Ignitions and Electrical Charging Systems

alpha Racing

TopFuel Racing 4S 4100 mAh 14.4V LiFe Battery

$236.49 $192.74 Save $43.75

SKU: 6121A003D01

In Stock
In Stock
Ships by Jul 31
Free Shipping over $100
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

Utilizing LiFe 4S technology, this battery operates within a lower voltage range (3.3V to 3.6V per cell) compared to LiPo and LiIon batteries, making it significantly less sensitive to under- and overvoltage conditions. It boasts a very constant and flat discharge curve, ensuring reliable power delivery, and offers excellent cycle stability for extended use. Key specifications include a LiFe battery type, 4S cell configuration, a rated voltage of 14.4 V, and a capacity of 4100 mAh. The battery comes equipped with a 200 mm Silicone High Flex connection cable (10qmm) in red and black. Please note that due to shipping regulations, this item cannot be shipped outside the EU or via air freight. The package includes the racing battery itself, but without a connector. Installation requires fitting suitable connectors to both the battery and the wiring harness. Matching connectors are available separately in the Accessories tab. The battery is specifically listed as compatible with BMW M 1000 RR (K66) models from 2021-2025 and BMW S 1000 RR (K67) models from 2019-2025.

MIA's Description

The Hacker TopFuel Racing Battery is a robust LiFe 4S battery designed for demanding applications. It features a 4100 mAh capacity and a 14.4 V rated voltage. The battery includes a 200 mm Silicone High Flex 10qmm connection cable in red and black.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

Brandalpha Racing
Part Number6121A003D01
CategoryIgnitions and Electrical

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy