RV Lithium Ion Batteries  |  A Drop in Replacement From Lead Acid, Gel or AGM Batteries

With ZERO safety issues and a nearly ZERO failure rate in over 12 years, Chargex Lithium Ion Batteries are second to none. Trusted by the US Navy, Boeing & NASA, our products are unmatched in Quality, Design and Safety. As the first Plug and Play Lithium Batteries that have been around for more than a decade, our lithium batteries have proven the test of time and continue to be the primary choice for major Institutions and Governments around the world. 

We Guarantee all of our products to meet or exceed their performance ratings and offer a Lifetime Warranty on all of our Lithium Batteries. Read More


NEED IT FAST? Same day shipping on in stock items and Overnight Shipping Available, call for details 1-855-CHARGEX 

CHARGEX® RV Lithium Ion Batteries



12V 50AH Deep Cycle & Starting RV Lithium Ion Battery
This 12V 50AH Lithium Ion Battery comes with a Fully Automatic, Built In Battery Management System and is commonly used in Class B and C Motorhomes, Fifth Wheel's and Travel Trailers.  Connect multiple batteries in parallel to increase capacity or in series to increase voltage.

 50A Continuous Charge / Discharge Rate
 50A Amp Hours
 500 Cold Cranking Amps
 Length: 7.7"
 Width: 6.45"
 Height: 6.75"
 
Weight: 15 Pounds

Price $499.99



12V 50AH Deep Cycle / Starting Lithium Ion Battery


5 Star Rating


12V 75AH Deep Cycle & Starting RV Lithium Ion Battery - Group Size 24
This 12V 75AH Lithium Ion RV Battery comes with a Fully Automatic, Built In Battery Management System and is commonly used  in Class A, B and C Motorhomes, Fifth Wheel's and Travel Trailers.  Connect multiple batteries in parallel to increase capacity or in series to increase voltage.

● 75A Continuous Charge / Discharge Rate
● 75 Amp Hours
● 750A Cold Cranking Amps
● Length: 10.25"
● Width: 6.75"
● Height: 9.88"
● Weight: 24 pounds

Price $799.99



12V 75AH Deep Cycle / Starting Lithium Ion Battery


5 Star Rating

12V 80AH Deep Cycle & Starting RV Lithium Ion Battery - Group Size 27
This 12V 80AH Lithium Ion RV Battery comes with a Fully Automatic, Built In Battery Management System and is commonly used in Class A, B and C Motorhomes, Fifth Wheel's and Travel Trailers.  Connect multiple batteries in parallel to increase capacity or in series to increase voltage.

● 80A Continuous Charge / Discharge Rate
● 80 Amp Hour Capacity
● 800A Cold Cranking Amps
● Length: 12"
● Width: 6.75"
● Height: 8.25
● Weight: 28 Pounds

Price $849.99



12V 80AH Deep Cycle / Starting Lithium Ion Battery




12V 100AH Deep Cycle & Starting RV Lithium Ion Battery - Group Size 31
This 12V 100AH Lithium Ion RV Battery comes with a Fully Automatic, Built in Battery Management System and is commonly used in Class A, B and C Motorhomes, Luxury Buses, Fifth Wheel's and Travel Trailers.

● 100A Continuous Charge / Discharge Rate
● 100AH Amp Hour Capacity
● 1000A Cold Cranking Amps
● Length: 12.75"
● Width: 6.75"
● Height: 8.7"
● Weight 31 Pounds

Price $999.99

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12V 100AH Deep Cycle / Starting Lithium Ion Battery



5 Star Rating


12V 150AH Deep Cycle & Starting RV Lithium Ion Battery - Group Size 4D
This 12V 150AH Lithium Ion RV Battery comes with a Fully Automatic, Built In, Battery Management System and is commonly used as a Plug and Play, Drop In Replacement in Class A, B and C Motorhomes, Luxury Buses, Fifth Wheel's and Travel Trailers.

● 150A Continuous Charge / Discharge Rate
● 150AH Amp Hour Capacity 
● 1500A Cold Cranking Amps
● Length: 19.25"
● Width: 10.5"
● Height 8.75"
● Weight: 64 Pounds

Price $1,999.99

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12V 150AH Deep Cycle / Starting Lithium Ion Battery




5 Star Rating

12V 200AH Deep Cycle & Starting RV Lithium Ion Battery - Group Size 31
This 12V 200AH Lithium Ion RV Battery comes with a Fully Automatic, Built In, Battery Management System and  is commonly used in Class A, B and C Motorhomes, Luxury Buses, Fifth Wheel's and Travel Trailers.

● 150A Continuous Charge / Discharge Rate
● 200AH Amp Hour Capacity
● 2000A Cold Cranking Amps
● Length: 12.75"
● Width: 6.78"
● Height: 8.7"
● Weight: 60 Pound

Price $1,999.99

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12V 200AH Deep Cycle / Starting Lithium Ion Battery


12V 300AH Deep Cycle & Starting RV Lithium Ion Battery - Group Size 8D
This 12V 300AH Lithium Ion RV Battery comes with a Fully Automatic, Built In, Battery Management System and is commonly used in Class A, B and C Motorhomes, Luxury Buses, Fifth Wheel's and Travel Trailers.

● 150A Continuous Charge / Discharge Rate
● 300AH Amp Hour Capacity
● 3000A Cold Cranking Amps
● Length: 19.25"
● Width: 10.25"
● Height: 8.75"
● Weight: 87 Pounds

Price $2,999.99

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12V 300AH Deep Cycle / Starting Lithium Ion Battery



5 Star Rating

12V 400AH Deep Cycle & Starting RV Lithium Ion Battery - Group Size 8D
This 12V 400AH Lithium Ion RV Battery comes with a Fully Automatic, Built In, Battery Protection System and is commonly used in Class A, B and C Motorhomes, Luxury Buses, Fifth Wheel's and Travel Trailers.

● 150A Continuous Charge / Discharge Rate
● 400AH Amp Hours Capacity
● 4000A Cold Cranking Amps
● Length: 19.25"
● Width: 10.25"
● Height: 8.75"
● Weight: 98

Price $3,999.99

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12V 400AH Deep Cycle / Starting Lithium Ion Battery

WE MANUFACTURE CUSTOM - OEM RV LITHIUM ION BATTERIES
We offer Custom Lithium Iron Phosphate Battery Manufacturing for OEM RV Manufacturer's, contact us today and speak to one of our Battery Experts about your project. 

  • 12V - 800VDC
  • Any Size and Shape
  • Any Voltage - Any Capacity
  • Uniquely manufactured in Corrosion Proof Anodized Aluminum Cases
  • 100% Safe - LiFePO4 Lithium Iron Phosphate Core
  • RV Electric Drive / House Bank / Starting Applications

Email Us   Read More About Our Custom OEM Lithium Battery Solutions


Custom Lithium Iron Phosphate Batteries

VIEW ALL CHARGEX LITHIUM ION BATTERIES
Chargex Manufactures Lithium Iron Phosphate Batteries used to replace lead acid batteries ranging from 12V to 96V. 

  • 12V, 24V, 36V 48V to 96V Batteries
  • 100% Safe - LiFePO4 Lithium Iron Phosphate Core

   View All Lithium Batteries



Custom Lithium Iron Phosphate Batteries



LIFETIME LITHIUM 

LIMITED LIFETIME WARRANTY

 Every battery Comes with our Limited Lifetime Warranty.  Read More

BMS PROTECTION 

Built in battery management system

Every Lithium Battery comes with a Automatic Built In Battery Protection System (BPS).   Read More

100% SAFE 

multiple safety redundancy systems

Our LiFePO4 cells are among the safest on the planet and are considered non hazardous.   Read More

PLUG & PLAY
 

Drop in replacement

Our Lithium Batteries are designed to be used as a drop in replacement from lead acid, gel or AGM batteries. Read More


Guaranteed For Life

Our Lithium Batteries are designed and Engineered to handle High amp Loads and Vibration in the world's most demanding environments and applications.

 

100% Depth of Discharge (DOD)

Safely use 100% DOD (depth of discharge) meaning you can expect to nearly double your capacity when comparing to the same size lead acid, gel or AGM battery.

 
 

Long Life 3000 - 5000 Cycles
Our lithium batteries will provide you with 100% depth of discharge for over 4000 cycles. After 4000 cycles, the battery will still have 80% of its rated capacity.

 
 

TECHNICAL ADVANTAGES

BOLTED STAINLESS STEEL CELLS

for superior strength, reliability and higher current conductivity

| CHARGEX® EnergyWave Heavy Duty Battery Protection System

Our Lithium Iron Phosphate Batteries are built with a First Class - Fully Automatic Built in Battery Protection System (BPS)

This Advanced Internal Battery Protection System will automatically turn off the battery if it is drained below 8V preventing accidental over discharge or if it is charged above 16V. 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 Battery Protection System maximizes the batteries efficiency and performance to increase cycle life. 

Click here to Learn More about the Built In Protection System





BOLTED TOGETHER FOR SUPERIOR STRENGTH

CHARGEX® Lithium Iron Phosphate Batteries are bolted together using our 3.2V 6AH Stainless Steel Cylindrical Cells which adds rigid strength and superior current conductivity compared to the lesser quality tab welded method. Further adding to the safety and reliability each cell bolts through our Lengthway circuit boards that adds additional strength to the battery while providing individual cell balancing and short circuit protection.

When compared to tab welded cells, our Lithium Ion Batteries are more robust in marine and automotive environments that high vibration often causes lesser quality tab welds to break apart rendering the entire battery useless.






LENGTHWAY CIRCUIT BOARDS 

CHARGEX® Lithium Iron Phosphate Batteries are made with our 32700 - 3.2V 6AH Stainless Steel LiFePO4 cells that are bolted together through our Lengthway Circuit Boards. The Lengthway Circuit Boards provide rigid strength to cells core and are connected to the heart of the system's BMS that will balance individual cells. 


Chargex Lengthway Circuit Boards





WORLD LEADER - LiFePO4 BATTERY DESIGN

With more than 12 years of innovation, our products are unmatched in quality, safety, and reliability. If you require the DEPENDABILITY that only CHARGEX can offer you, give us a call today and one of our Battery Experts can help you choose the right battery for your application.  1-855-CHARGEX (855-242-7439)

12V 100AH Lithium Battery Cell Structure



CHARGEX® 3.2V 5AH Lithium Iron Phosphate - LiFePO4 Cell

Thermal Fuse

Internal Cell Safety Fuse

Our latest cell technology has a built in thermal safety fuse between the anode and cathode that will internally break in the unlikely event the cell would begin to overheat. 

Safety Vent 

High pressure safety vent

A high pressure safety vent will flip open to release energy and prevent explosion if exposed to extreme heat.

 

Electrolyte 

Flame Retardant Electrolyte

Our cells are manufactured with a flame retardant additive in the electrolyte making them safe.

 

Explosion proof
 

explosion proof stainless steel

Every CHARGEX® Battery cell is manufactured in a explosion proof stainless steel cylindrical case. 


installation informaton

Setting up your inverter charger

Our lithium batteries will work with any standard RV charger or alternator. We recommend programming your inverter/charger remote to 14.6V for Bulk and Absorb, and set the Float to 13.6V. 

Connecting multiple batteries in series or in parallel

Our lithium ion batteries can be combined in series to increase voltage or in parallel to increase capacity. The built-in battery protection system independently maintains the cells and keeps the battery operating at its maximum capacity for thousands of cycles.

Charging 

Our lithium ion batteries can be recharged with any standard charger, alternator and charge controller designed to charge lead acid, gel or AGM Batteries. In some cases, if your charger does not reach a high enough voltage, it may not fully charge the battery. We offer a line of 12V lithium battery charger designed to provide maximum performance and longest life out of our batteries. To view our chargers Click Here

Standard BCI Group Sizes

Our lithium batteries are the same group sizes as Lead Acid Batteries. Simply connect your cables and you're ready to go.  The built-in battery protection system will automatically disconnect if you accidentally touch the positive and negative terminal together with a wrench or if the battery is accidentally wired backward. After you install the battery and connect your cables you can immediately use the battery. Unlike other lithium batteries that require sophisticated external wiring to battery management systems, our line of drop-in replacement lithium batteries are " Plug and Play " requiring no maintenance for life. Install once and you are done!

Solar Charging

Our lithium batteries work with all standard solar charge controllers. Our batteries are 99.1% efficient and able to absorb nearly 100% of the energy from your solar system whereas your lead batteries can lose over 25% of the power from your solar panels due to resistance. 

Tip: Keep your battery connections firmly tightened, a loose terminal will heat up and cause resistance. 

Charging


Our Lithium Batteries have a built in Battery Management System that allows them to be used with any standard RV charger. Simply remove the old batteries, install the CHARGEX® Battery and you are ready to go.

How to connect | Plug & Play


Our lightweight lithium ion batteries simply connect to your RV using the same connections as your lead batteries. The built in battery protection system makes them plug and play for any motor home, travel trailer or RV application. 

Deciding which battery to buy for your RV?


The 12V 100AH Deep Cycle Lithium Ion Battery is our most popular battery used in the RV industry. The SB100 will work for any RV application from travel trailers to luxury prevost coaches, for both starting and deep cycle applications.



Lithium advantages vs lead acid

The downsides of Lead Acid Batteries

To understand why lithium batteries show such promise for replacement of lead batteries in motorhomes, it first helps to understand all the ways that traditional lead acid batteries fall short.

Limited Usable Capacity

It is typically considered wise to use just 30% – 50% of the rated capacity of typical lead acid batteries. This means that a 400 amp hour battery bank in practice only provides, at best, 200 amp hours of actual usable capacity. If you even occasionally drain the batteries more than this their life will be drastically cut short.

Limited Cycle Life

Lead acid batteries require special attention to avoid reducing their life by draining them too low or not fully charging them. Even if you are going easy on your batteries and are careful to never overly drain them, the best deep cycle lead acid batteries are typically only good for 300 cycles. If you are a full timer or take frequent extended trips this could mean that your batteries may need replacement in less than 2 years!

Slow & Inefficient Charging

Lead Acid batteries require multi stage chargers with complex algorithms to keep them from over heating or swelling.  Not fully charging a lead battery leads to premature aging. 

Placement Issues

Flooded lead acid batteries release toxic acidic gas while they are charging, and must be vented. They also must be stored upright, to avoid battery acid spills.

Peukert's losses & Voltage Sag

A fully charged lead acid battery starts off around 12.8 volts, as it is drained the voltage drops steadily. When the voltage drops below 12 volts the battery has about 25% of its usable capacity remaining, Some RV inverters and electronics may fail to operate with less than a full 12 volt supply. 

Also – the faster that you discharge a lead acid battery of any type, the less energy you can get out of it. This effect can be calculated by applying Peukert’s Law, and in practice this means that high current loads like an air conditioner, a microwave or an induction cooktop can result in a lead acid battery bank only producing less than 60% of its normal capacity. This is a huge loss in capacity when you need it most!

Size & Weight

Lead Acid Batteries are big & very heavy! A typical 8D sized battery that is commonly used for large RV's like the Trojan 8D-AGM weighs 167lbs, and provides just 230 amp-hours of total capacity – which leaves you with 115 amp hours truly usable, and only 70 for a high discharge applications.



Technological Advantages of Lithium RV Batteries

A confluence of events is setting the stage for what may well be dramatic change in the battery industry that has not changed much in the past 40 years. Lithium Batteries are arriving at a good time, RV manufacturers are facing some difficult challenges with respect battery life in motorhomes, These challenges are driving the need for Lithium Batteries in RV's that offer more flexibility when it comes to: 

  • Reduced Footprint & Weight allowing a more effective use of space
  • Increased Battery Capacity
  • Ability to Predict Failures
  • Extended Life
  • Eliminate Maintenance and Overhead 

Lithium batteries provide multiple times the energy density as compared to Lead Acid Batteries. As a result Lithium batteries take up much less space than lead batteries that deliver the same power. Lithium RV Batteries can also withstand a wider temperature range than lead batteries and are less sensitive to temperature fluctuations. Predicting end of life for lead batteries can be almost impossible and they can fail without warning. Lithium Batteries last for thousands of cycles so most coach owners may never know what it's like to see a lithium battery die. For those who may cycle batteries everyday It could be over 10 years before Lithium batteries would show signs of reduced capacity.   project.

Lower Total Cost

Lithium ion batteries present considerable cost challenges when making an initial investment. They are usually more expensive, at first, than lead-acid solutions. However, in most situations, the faster degradation of lead-acid batteries means they need to be replaced after a relatively short duration. Lithium ion batteries, on the other hand, can withstand the rapid and deep cycling necessary in bridge-to-backup scenarios without problems, allowing them to last several times longer than lead-acid options in many applications. The long-term reliability of lithium ion batteries makes them a hardier energy storage option for bridge-to- backup solutions. This reduces the total cost of ownership of purchasing the solution. The end result is a situation in which you end up saving considerably over time even though you have to spend a bit more at the outset of the project.

Wasted Energy

In addition to all that wasted generator time, lead acid batteries suffer another efficiency issue – they waste as much as 25% of the energy put into them via inherent charging inefficiency. So if you provide 100 amps of power, you’ve only storing 75 amp hours. This can be especially frustrating when charging via solar, when you are trying to squeeze as much efficiency out of every amp as possible before the sun goes down or gets covered up by clouds.

Deep Discharge without consequences

The ability to rapidly discharge energy is great, but lead-acid battery life may be compromised when used this way. Available lead-acid battery capacity decreases as their discharge rate increases, and product life rapidly degrades when they are deeply discharged (i.e. more than 30-50%). This means the nameplate capacity of the batteries must be 2-3x greater than the level of desired performance. Lithium ion batteries are designed specifically to withstand deep depth of discharge (DOD) making them capable of lasting much longer over time without having to be replaced.


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