Custom Battery Pack Solutions

Custom Power is a specialist supplier of custom built lithium battery packs, COTS battery modules, portable power and energy storage systems for industrial, energy, autonomous and defence applications. Designed for high reliability in the most demanding environments, for sectors as diverse as oil & gas, oceanography and robotics.

About Us

With over 30 year’s of experience in manufacturing battery packs, Custom Power is a leading battery pack manufacturer providing power technology solutions for critical industrial applications.

We supply custom built battery packs and battery technology for use in some of the harshest and most demanding environments.

Operating from modern facilities in Crewkerne, Somerset, and Fountain Valley, California, we have almost 60,000 sq ft of manufacturing, distribution and office space dedicated solely to battery pack development and assembly.

Custom Design

Custom Power’s custom battery packs are designed to provide optimal performance in the worlds harshest environments.

Custom Build

Precision custom built battery packs developed to provide reliable power for mission critical applications.

Battery Products

Our range of battery products including primary & secondary lithium battery packs, portable power & energy storage systems.

Trusted Suppliers

Below is just a selection of our trusted suppliers who help power our solutions.

Market Served

Military & Defense

Medical

Industrial

Rail Transporation

Oil & Gas

Autonomous

UAV & Drone

Oceanographic

Latest News

Gary Marsh 1966 – 2025

Winter Newsletter

Custom Power Secures Orders Across our Target Markets Totaling $7.4m

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