Many institutions like Boeing, NASA, Jet Propulsion Laboratory (JPL), John Deere, General Motors, US Navy, US Air Force, and many more rely on us for customized lithium batteries for Naval, Aerospace, ESS, forklift, and other commercial and mission critical applications.
Hundreds of thousands of our lithium batteries have been sold around the world for more than 13 years. With less than a one percent failure rate and zero safety events, we now further protect your investment with a full lifetime warranty. Click here to learn more about our lifetime warranty.
United States Navy
Awarded Chargex multiple projects to design and engineer fully customized Class A Lithium Batteries for Naval Military Applications.
Jet Propulsion Laboratories
Unmatched safety is a primary reason multiple projects are underway at JPL utilizing Chargex lithium batteries.
For years we have been the manufacturer of choice selected for multiple projects at NASA.
Awarded Chargex with development of customized Energy Storage Solutions (ESS) for Telecom Tower UPS Systems.
We Carry Thousands of Lithium Batteries in Stock!
Bolted Together For Superior Strength
Chargex Lithium Iron Phosphate Batteries are manufactured contrastingly superior from the competition with our bolted 32700 Stainless Steel Cylindrical LiFePO4 Battery Cells.
Each cell is bolted through a rigid lengthway circuit board that strengthens the battery pack and provides superior current conductivity compared to tab welded cells. Chargex lithium battery packs are held together with thick, solid copper bus plates that prevent the pack from bending or warping in extreme conditions further maximizing current conductivity and strength to the battery pack.
Built Tough, Safe, and Dependable
The Chargex Battery Management Systems (BMS) sets itself apart with top tier MOSFETS and electrical components for maximum efficiency, performance, and reliability. Our BMS modules typically have higher charge and discharge current capability than competitor lithium batteries with the same capacity, this allows you to use our batteries for both deep cycle and starting applications.Each BMS has standard features including short circuit protection, reverse polarity protection, low voltage, and over voltage protection. Chargex BMS modules vary across battery models, typically we do not add temperature features that can prevent you from using the battery in low temperatures, while this may reduce the life cycle of the battery, it allows you to keep running your Marine, RV, and electronics regardless of the temperature.
Lengthway Circuit Boards
Chargex Lithium Battery cells are bolted together through Lengthway Circuit Boards that provide rigid strength to the battery pack and connect to the BMS that balances individual cells.
The Lengthway Circuit Boards will shut down an individual cell in the unlikely event of failure preventing short circuit and allowing the rest of the battery to continue functioning normally, if a single cell fails with a tab welded battery pack, it can short circuit and will cause the whole pack to fail. Other lithium batteries are typically built with tab welded cells that are balanced together as a string of cells.
The 32700 3.2V 5AH LiFePO4 Lithium Iron Phosphate Battery Cell
Chargex batteries are manufactured with 32700 - 3.2V Lithium Iron Phosphate (LiFePO4) Explosion Proof Stainless Steel Cells. Every cell is bolted together for a firm connection and more electrical conductivity compared to the tab welded method.
Each cell has a unique built-in thermal fuse that in the unlikely event a cell is overheating, internally disconnects shutting down the cell and preventing it from overheating. In addition, a high pressure safety vent and flame retardant electrolyte make this one of the world's safest batteries.
- Explosion Proof
- High Quality Stainless Steel
- Thermal Fuse
- Flame Retardant Electrolyte
- Hight Pressure Safety Vent
Chargex is a division of our lithium battery engineering group founded in 2010. After 13 years' accumulation, growth and experience, we have developed into one of the industries leading battery manufacturers with offices, sales teams, and factories located around the world. In 2010 we pioneered plug and play, drop in replacement batteries for consumer applications, now, along with building customized battery solutions for telecom, (ESS) Energy Storage Systems, EV and industrial applications, our focus has shifted to supporting aerospace and defense projects, namely, with the US Naval Surface Warfare division, NASA-JPL, BOEING and the US Air Force. Chargex headquarters is located in Tampa, Florida with a sophisticated R&D engineering team for complex, integrated lithium battery systems.
Limited Lifetime Warranty
Our Lithium Batteries are the battery of choice for thousands of companies and consumers around the world. Click here for more info.
Internal Battery Protection System
Every Lithium Battery comes with an Automatic Built In Battery Protection System (BPS). Click here for more info.
multiple safety redundancy systems
Our LiFePO4 cells are among the safest on the planet and are considered safe and non hazardous. Click here for more info.
Engineered to Last
Our lithium batteries are used through out the world as a drop In replacement from lead acid, gel and AGM batteries. Click here for more info.
Heavy Duty Battery Protection System
This highly advanced internal battery protection system automatically turns the battery off if it's drained below 8V or charged above 16V - preventing accidental over discharge. The Battery Protection System will turn off the battery by sensing a short circuit, reverse polarity, over and under voltage, as well as, over current. This Built-in Battery Protection System maximizes the efficiency and performance of the battery to increase its cycle life.Click Here to Learn More About our Built-In Protection System
Tested & Approved: Designed to Replace Outdated Lead Acid, Gel, and AGM Batteries
Plug & Play
Drop-in replacement - same group sizes as standard lead acid batteries. Simply connect your battery cables and you're ready to go.
Connect multiple batteries in series and in parallel to increase voltage, power, and capacity.
Built-in Battery Protection
Every battery comes with a built-in battery protection system designed to protect and maintain the battery cells.
70% Lighter than Lead
Lithium Batteries average 70% lighter than the same size lead battery. Plus - our batteries don't contain toxic lead, gases, or acid.
100% Depth of Discharge (DOD)
CHARGEX® Lithium Ion Batteries can be discharged to 100% of the rated capacity.
Long Life 3000 - 5000 Cycles
CHARGEX® Lithium Batteries outperform our competitors in quality, safety, reliability, and life.
Over 100,000 Lithium Batteries Sold Worldwide | Thousands of Lithium Batteries In Stock & Ready to Ship
CHARGEX® Lithium Batteries can last over 5,000 cycles and 20+ years.
Designed and Engineered for all Deep Cycle and Starting Applications
Stainless Steel 3.2V 5.5AH LiFePO4 cells with Thermal Fuse and High Output BMS
100% safe for >13 years
LiFePO4 Lithium Iron Phosphate Chemistry 100% safe for more than a decade
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A FEW THINGS OUR CUSTOMERS ARE SAYING...
My battery bank of 4- 12V 100AH Lithium Batteries work better than expected in my travel trailer. I am able to keep my batteries charged with solar panels allowing me to spend time off the grid. With my 1000 watt inverter I can run all the accessories that I want and have plenty of battery reserve for the evenings.
Purchased this to use as house battery on my boat, I'm really pleased with performance, just wish I had this long ago. I run 2 fridges and small freezer, all work even better than full power from previous pair of batteries as these charge to a little higher voltage. We anchor out lots and so happy to have something that really works well..if you like to anchor out on the hook for any length of time don't hesitate to spend the extra, you'll be so glad you did.
- Martin M.
Had previously bought six 100amp Lithium Ion batteries, for use in my Solar/Wind powered RV. The six batteries have been in use for over one year running 24/7. I wanted an additional battery bank so I bought this 300amp battery. I am completely satisfied with my purchase. So much power in such a light battery and it looks great too. Will be buying a second 300amp battery for a grand total of 1,200amps.
- Cuauhtemoc L.
I am a Captain on a 54' Sport Fishing Boat. The twin diesel engines take a lot of Power to start. Typically we go out everyday and start/stop the motors at different fishing locations. throughout the day the batteries would get weaker as some electronics run on it and from starting. Now that we installed the Batteries the boats engines crank over without any hesitation and have a noticeably faster start. This provides me with confidence in shutting the motors down while off-shore and knowing I have plenty of power to start back up.
No matter how you play with the numbers, formulas and assumptions - Over the life of the battery, Lithium Ion Batteries cost less than lead batteries. Lithium Battery technology can last up to 5000 cycles. Typically a deep cycle lead battery will only last around 300 - 500 cycles. Meaning you may have to replace your lead batteries over 15 times to equal the life of just 1 Lithium Battery. Lithium Ion Batteries will save you thousands of dollars over the life of your application making this a Smart Investment. Think about all of the money and frustration you have spent on lead batteries. Lithium is a green alternative that is quickly becoming the technology of choice for thousands of people and business's around the world.
Purchased Three - 100AH Marine Batteries 06/2012 and I fish all year long in North Carolina>>>>These Batteries are still as strong as the first day I put them in my Bass Boat. After fishing for stripers in the Cape Fear River for 5 - 6 hours would completely discharge three optimas (the 65 lb. blue tops), But with the Lithium Ions I still have 50% left and they are over 100 lbs. lighter and completely recharge in two hours. After Four 1/2 years that's some great batteries!
- Bob R., Wilmington NC.
Our firm uses the 12V 100AH Group 31 Lithium Ion Battery in over 40 fleet vehicles and we love them. Currently we have to change out 3 batteries per vehicle every 6 - 8 months due to heavy amp draws our equipment placed on the lead batteries. The Lithium Battery is designed to handle these heavy loads without sacrificing life of the battery, we are expecting over 5 years in our vehicles that would require over 6 sets of lead batteries to last as long as one set of lithium batteries. Eliminating maintenance and downtime of our equipment. We also considered the environmental impact of switching to lithium batteries from lead acid batteries knowing the lithium batteries are non hazardous we are reducing our carbon footprint and getting a much better battery at the same time.
I required a high quality lithium battery to run electrical equipment and for emergency back up power. These guys were able to assist us in determining the best battery to use based on the power requirements should we experience a power outage. Having a reliable and practical solution is important to keep our systems running in the event of a power outage. Lead acid batteries are hazardous and cannot be used in our factory due to safety concerns with off gassing, Lithium ion batteries were the best option and finding this company was a quick and easy solution for us.
I am an artist and travel in my RV along with my wife Dawn and our dog Lucy. We are often camping off grid and run our lights and inverter off our lead batteries which would only last for a couple hours running lights and our TV. Our generator auto start turns on is very noisy so we were researching better lead acid batteries for our coach when we came across Lithium Batteries at an RV show in Florida. The benefits of lithium ion batteries vs lead batteries for our coach seemed like an obvious choice considering how much off grid camping we do. Our coach formerly required 4 - 6V lead acid batteries, The rep at their booth explained we only needed two of there 12V batteries to connect in parallel and that would replace all 4 of our 6V lead batteries due to the lead batteries not being able to be drained more than 50% of their rated capacity, leaving us with 50% unusable dead weight (literally). We decided to go ahead and purchased 2 - SB100 lithium batteries and have been happy we did. Our coach has enough battery power to run our lights and TV as long as we need and have not turned off on us yet. When we camp in cold areas the batteries keep our heater running all night whereas before our generator would cut on in the middle of the night to recharge the lead batteries. We absolutely love the batteries and recommend them for anyone looking to upgrade Their coach batteries.