HV Battery

Safe, enclosed battery modules with BMS and contactors built in. Stackable, serviceable, and ready to mount in any direction.

Streamline your EV conversion with Formosa Battery Modules—designed for easy, out-of-the-box installation. Compact and modular, they offer flexible mounting options to fit spaces where other batteries won’t.

With threaded baseplate holes, mounting is straightforward and adaptable to various orientations and brackets. Available in 8-pack, 12-pack, and 16-pack configurations, you can customize customize energy capacity and power based on your vehicle’s size and performance needs, while fine-tuning placement for optimal weight distribution.

Each module is self-contained with a built-in Battery Management System (BMS) for enhanced safety and reliability. The Main Module includes HV contactors, a precharge circuit, and the BMS main unit, ready to go.

No assembly needed—just mount, plug in, and drive. Formosa Battery Modules make EV conversion simple, versatile, and reliable.

Installation Guide

  • Brackets must be minimum 1/8" thick steel and connect to a minimum of 6 bolts on the baseplate
  • Bolts used must be High-Strength Class 10.9 Steel or better. Flanged hex head is recommended. Torqued to 51 Nm (37 ft-lbs)
  • Brackets must be bolted or welded onto vehicle chassis in structural locations with thick steel such as the original engine mounting holes or vehicle ladder frame.
  • Design consultation available upon request!
  • Standard mounting brackets files provided and can be modified. We recommend SendCutSend for producing your custom FBM brackets.
*Range estimates are conservative and based on an EV conversion of a typical passenger car. Many factors affect efficiency such as vehicle weight, aerodynamics, transmission, and driving behavior. Actual range may be higher or lower than estimates provided here.

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