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Custom Lithium Battery Solutions — Engineered for Precision

At CHARGEX®, we design and manufacture highly customized lithium battery systems for demanding applications in Aerospace, Defense, Marine, Industrial, Telecom, and OEM markets. Since pioneering the first drop-in replacement lithium-ion battery in 2010, we’ve continued to lead the industry with purpose-built, application-specific solutions.

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Tailored Power for Mission-Critical Applications

No two applications are the same—and neither are our batteries. 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 aerospace, military, or industrial 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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U.S. Manufacturing – Clearwater, Florida

To meet growing demand for domestic energy storage and defense-grade lithium batteries, we’re opening our first U.S.-based lithium battery assembly plant in Clearwater, Florida. This facility will serve as our hub for custom pack assembly, rapid prototyping, and high-tech production—bringing innovation and reliability back to American manufacturing.

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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 and multiple patents, 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 military, aerospace, and government research programs around the world.

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Trusted by the World’s Most Demanding Organizations

From satellites and submarines to jet propulsion systems and mobile command centers, CHARGEX® custom batteries power some of the world’s most critical technologies. Our clients include:

• NASA

• SPACEX

• BOEING

• Jet Propulsion Laboratory (JPL)

• U.S. Navy and Department of Defense contractors

Our Journey of Innovation

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2010

• Pioneered the world’s first drop-in replacement lithium-ion batteries for Sealed Lead Acid (SLA) applications.

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2012

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

• Secured contracts with General Motors to supply lithium-ion batteries for robotics applications.

• Developed proprietary molding and fabrication equipment for scalable production of drop-in lithium batteries.

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2013

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

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2014

• Opened multiple overseas automation plants, scaling manufacturing capacity to 500,000+ cells per day.

• Initiated a two-year safety and approval testing program with Boeing.

• Delivered custom lithium batteries to the U.S. Naval Surface Warfare Division, meeting exact size and performance specs.

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2016

• Officially received Boeing approval after extensive validation testing.

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2017

• Awarded the NASA Aerospace Lithium Battery Project for advanced defense technologies.

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2018

• Selected by Navistar for a High Voltage EV Pilot Program.

• Delivered a customized subsea prototype to Boeing for U.S. defense applications.

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2019

• Official launch of the CHARGEX® brand, establishing leadership in U.S.-based lithium battery innovation.

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2021

• Opened a new retail facility in Tampa, FL to support rising consumer demand.

• Launched a Houston, TX assembly and manufacturing plant focused on industrial and defense sectors.

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2022

• Awarded NASA Jet Propulsion Laboratory (JPL) contract for the U.S. Rover Mission – Sub-Surface Operations in Antarctica.

• Partnered with Nokia for national telecom battery replacement projects.

• Delivered large-scale lithium battery systems now deployed across all 12 active U.S. aircraft carriers.

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Recent Milestones | 2023–2025

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2023

• Expanded integration across aerospace and defense platforms with mission-ready energy systems.

• Upgraded telecom power infrastructure with high-efficiency lithium batteries.

• Launched next-gen, lightweight lithium packs for rugged field and industrial use.

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2024

• Delivered advanced battery systems for military, marine, and aerospace applications in extreme environments.

• Deployed real-time diagnostic BMS with predictive analytics for commercial and defense sectors.

• Increased global production capacity and support networks to meet growing demand.

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2025

• Opened U.S.-based battery cell assembly plant in Clearwater, FL to enhance domestic production.

• Introduced the world’s first commercially viable solid-state lithium batteries for defense and industrial use.

• Launched sodium-ion battery line as a sustainable, cost-effective alternative to LiFePO₄.

• Unveiled modular battery platform for scalable deployment across aerospace, defense, telecom, and industrial systems