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Custom Lithium Battery Solutions — Engineered for Precision

We design and manufacture customized lithium battery systems for demanding applications along with our full line of Aerospace, Marine, Industrial, Telecom, and OEM Batteries. Since pioneering the first drop-in replacement lithium-ion battery in 2010, we’ve continued to lead the industry with drop-in replacement and purpose-built, application-specific solutions.

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Tailored Power for Mission-Critical Applications

Our engineering team works directly with clients to develop fully customized lithium battery packs, meticulously tailored to your project’s:

• Voltage, capacity, and form factor

• Battery Management System (BMS) functionality

• Communication protocols (CAN, RS485, SMBus)

• Housing, environmental sealing, and thermal control

• Compliance with industry standards

Whether you need a one-off prototype or scalable OEM production, we deliver precision-built, reliable solutions engineered for the highest performance and safety standards.

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Global Presence. Local Excellence.

With manufacturing partnerships across the U.S. and internationally, Chargex maintains full control over quality, ethics, and supply chain reliability. Our exclusive relationships with trusted factories, handpicked by our founders and engineering leadership, allow us to deliver consistent, high-performance products at scale.

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Innovation Through Research & Development

Our R&D team is a driving force in the global battery industry. With decades of experience, we’re constantly advancing:

• Battery safety and protection systems

• Smart BMS technology

• New chemistries and cell formats

• Modular and scalable energy architectures

We’re proud to support innovation for aerospace, and government research programs around the world.

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Trusted by the World’s Most Demanding Organizations

Chargex custom batteries power some of the world’s most critical technologies. Our products have been used in projects for organizations such as -

• NASA

• SPACEX

• BOEING

• Jet Propulsion Laboratory (JPL)

Our Journey of Innovation

2010

• Developed the first drop-in lithium-ion replacement batteries for Sealed Lead Acid (SLA) applications.

2012

• Entered an exclusive partnership with the world’s 3rd largest lithium-ion battery manufacturer.

• Began supplying General Motors with lithium-ion batteries for robotics projects.

2013

• Established U.S. distribution networks with exclusive territories for plug-and-play lithium solutions.

2014

• Began a two-year safety and certification program with Boeing.

2016

• Received Boeing approval following extensive testing and validation.

2017

• Selected by NASA for an advanced lithium battery project supporting aerospace applications.

2018

• Collaborated with Navistar on a High Voltage EV Pilot Program.

• Delivered a custom subsea battery prototype to Boeing.

2019

• Introduced the CHARGEX® brand, marking a new stage in U.S. lithium battery development.

2021

• Opened a retail facility in Tampa, FL to provide expanded consumer support.

2022

• Worked with NASA’s Jet Propulsion Laboratory on the Rover Mission – Sub-Surface Operations in Antarctica.

• Gained approval from Nokia for deployment of national telecom battery replacement projects.

Recent Milestones | 2023–2025

2023

• Supported Nokia’s telecom battery infrastructure roll-out upgrades with high-efficiency lithium systems.

• Released lightweight Aluminum lithium battery packs for field and industrial applications.

2024

• Supplied aerospace programs with battery systems for extreme environments.

• Expanded global production and support networks.

2025

• Introduced commercially ready solid-state lithium batteries for aerospace and industrial use.

• Added a sodium-ion line as a sustainable alternative to LiFePO₄.

• Developed a modular battery platform for scalable use in aerospace, telecom, and industrial projects.