Marine Lithium Ion Batteries  |  A Drop in Replacement From Lead Acid, Gel or AGM Batteries
When manufacturing lithium batteries for Subsea, Naval and Marine applications, safety is always the most important factor in any product, at Chargex, our products have 12 Years of proven safety with ZERO fires, explosions or thermal runaway events. If having the best and safest lithium battery is important to you, read below and see why Chargex is trusted by the US Navy, Boeing, and NASA.


What if you never had to replace your batteries again? Chargex lithium batteries come with a limited lifetime warranty.
We guarantee all of our products to meet and exceed all of their performance specifications with a 100% money back guarantee and limited lifetime warranty.


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


12V 50AH Deep Cycle & Starting Marine Lithium Ion Battery
This 12V 50AH Marine Lithium Ion Battery is commonly used for Yachts, Sailboats, Catamarans and other maritime applications requiring large capacity and deep discharge lithium batteries. 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 Marine Lithium Ion Battery - Group Size 24
This 12V 75AH Marine Lithium Ion Battery is commonly used for yachts, sailboats, catamarans, and other maritime applications requiring large capacity and deep discharge lithium batteries. 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 Marine Lithium Ion Battery - Group Size 27
This 12V 80AH Marine Lithium Ion Battery is commonly used for Yachts, Sailboats, Catamarans and other maritime applications requiring large capacity and deep discharge lithium batteries. 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 Marine Lithium Ion Battery - Group Size 31
This Marine 12V 100AH Marine Lithium Ion Battery is commonly used for Yachts, Sailboats, Catamarans and other maritime applications requiring large capacity and deep discharge lithium batteries. Connect multiple batteries in parallel to increase capacity or in series to increase voltage.

● 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 Marine Lithium Ion Battery - Group Size 4D
This 12V 150AH Marine Lithium Ion Battery is commonly used for Yachts, Sailboats, Catamarans and other maritime applications requiring large capacity and deep discharge lithium batteries. Connect multiple batteries in parallel to increase capacity or in series to increase voltage.

● 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 Marine Lithium Ion Battery - Group Size 31
This 12V 200AH Marine Lithium Ion Battery is commonly used for Yachts, Sailboats, Catamarans and other maritime applications requiring large capacity and deep discharge lithium batteries. Connect multiple batteries in parallel to increase capacity or in series to increase voltage.

● 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 Marine Lithium Ion Battery - Group Size 8D
This 12V 300AH Lithium Ion Battery is commonly used for Yachts, Sailboats, Catamarans and other maritime applications requiring large capacity and deep discharge lithium batteries. Connect multiple batteries in parallel to increase capacity or in series to increase voltage.

● 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 Marine Lithium Ion Battery - Group Size 8D
This 12V 400AH Marine Lithium Ion 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

36V 60AH DEEP CYCLE LITHIUM IRON PHOSPHATE BATTERY  - LiFePO4 
This CHARGEX 36V 60AH Lithium Ion Battery is commonly used for all 36V trolling motors,  connect multiple batteries in parallel to increase capacity or in series to increase voltage.

  • Group Size 31
  • 36 Volts
  • 60 Amp Hour Deep Cycle Capacity
  • EnergyWave Heavy Duty Battery Protection System
  • 100% Safe - LiFePO4 Lithium Iron Phosphate Core
  • Lifetime Warranty - Learn More
  • Price $3,999.99
  • In Stock

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36V 60AH Deep Cycle Lithium Ion Battery

5 Star Rating

36V 50AH DEEP CYCLE LITHIUM IRON PHOSPHATE BATTERY KIT  - LiFePO4 
This CHARGEX® 36V 50AH Lithium Ion Battery Kit is commonly used for most trolling motor applications that require between 4 - 6 hours of run time.  Connect multiple batteries in parallel to increase capacity or in series to increase voltage.

  • 36 Volts
  • 50 Amp Hour Deep Cycle Capacity
  • EnergyWave Heavy Duty Battery Protection System
  • 100% Safe - LiFePO4 Lithium Iron Phosphate Core
  • Lifetime Warranty - Learn More
  • Price $1,799.99
  • In Stock

Buy Now   Read More


36V 50AH Lithium Battery Kit





36V 75AH DEEP CYCLE LITHIUM IRON PHOSPHATE BATTERY KIT  - LiFePO4 
This CHARGEX® 36V 75AH Lithium Ion Battery Kit is commonly used for most trolling motor applications requiring between 8 - 12 hours of runtime.  Connect multiple batteries in parallel to increase capacity or in series to increase voltage.

  • Group Size 24
  • 36 Volts
  • 75 Amp Hour Deep Cycle Capacity
  • EnergyWave Heavy Duty Battery Protection System
  • 100% Safe - LiFePO4 Lithium Iron Phosphate Core
  • Lifetime Warranty - Learn More
  • Price $2,499.99
  • In Stock

Buy Now   Read More


36V 75AH Lithium Battery Kit



36V 80AH DEEP CYCLE LITHIUM IRON PHOSPHATE BATTERY KIT  - LiFePO4 
This CHARGEX 36V 80AH Lithium Ion Battery kit is commonly used for most 36V Trolling Motor applications requiring 10+ hours of runtime.  Connect multiple batteries in parallel to increase capacity or in series to increase voltage.

  • Group Size 27
  • 36 Volts
  • 80 Amp Hour Deep Cycle Capacity
  • EnergyWave Heavy Duty Battery Protection System
  • 100% Safe - LiFePO4 Lithium Iron Phosphate Core
  • Lifetime Warranty - Learn More
  • Price $3,999.99
  • In Stock

Buy Now   Read More


36V 80AH Lithium Battery Kit




36V 100AH DEEP CYCLE LITHIUM IRON PHOSPHATE BATTERY KIT - LiFePO4 
This CHARGEX 36V 100AH Lithium Ion Battery Kit is commonly used for High Thrust Trolling Motors that require heavy amp draws or need long runtime.  Connect multiple batteries in parallel to increase capacity or in series to increase voltage.

  • Group Size 31
  • 36 Volts
  • 100 Amp Hour Deep Cycle Capacity
  • EnergyWave Heavy Duty Battery Protection System
  • 100% Safe - LiFePO4 Lithium Iron Phosphate Core
  • Lifetime Warranty - Learn More
  • Price $3,999.99
  • In Stock

Buy Now   Read More


36V 100AH Lithium Battery Kit



CHARGEX® MANUFACTURES CUSTOM OEM LITHIUM IRON PHOSPHATE BATTERIES
We offer Custom Lithium Iron Phosphate Battery Manufacturing for OEM Manufacturer's and Commercial Applications, contact us today and speak to one of our Battery Experts about your project. 

  • 12V - 800VDC
  • Any Capacity
  • Anodized Aluminum Case
  • 100% Safe - LiFePO4 Lithium Iron Phosphate Core
  • Marine Propulsion / 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



Onboard Marine Lithium Ion Battery Chargers


12V 6A Lithium Ion Battery Charger

12V 6A Lithium Ion Battery Charger

$170.99

Learn More

12V 2 Bank 6A Lithium Ion Battery Charger

12V 6A Two Bank Lithium Ion Battery Charger

$229.99

Learn More

12V 3 Bank 6A Lithium Ion Battery Charger

12V 6A Three Bank Lithium Ion Battery Charger

$305.99

Learn More

12V 25A Lithium Ion Battery Charger

12V 25A Waterproof Lithium Ion Battery Charger

$499.99

Learn Mo



12V 15A Lithium Ion Battery Charger

12V 10A Lithium Ion Battery Charger

$239.99

Learn More

12V 2 Bank 10A Lithium Ion Battery Charger

12V 10A Two Bank Lithium Ion Battery Charger

$359.99

Learn More

12V 3 Bank 10A Lithium Ion Battery Charger

12V 10A Three Bank Lithium Ion Battery Charger

$516.99

Learn More

12V 4 Bank 10A Lithium Ion Battery Charger

12V 10A Four Bank Lithium Ion Battery Charger

$683.99

Learn More



12V 15A Lithium Ion Battery Charger

12V 15A Lithium Battery Charger

$235.99

Learn More

12V 2 Bank 15A Lithium Ion Battery Charger

12V 2 BANK  15A Lithium Ion Battery Charger

$364.99

Learn More

12V 3 Bank Lithium Ion Battery Charger

12V 3 BANK 15A Lithium Ion Battery Charger

$489.99

Learn More

12V 4 Bank Lithium Ion Battery Charger

12V 4 Bank 15A Lithium Ion Battery Charger

$768.99

Learn More




CHARGEX® ADvanced lithium iron phosphate TECHNICAL INFORMATION

Chargex Bolted Lithium Cell Structure

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 Highly 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

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 Smart Battery cell is manufactured in a explosion proof stainless steel cylindrical case. 




Lithium Trolling Motor Batteries


Our batteries work with all 12V, 24V, and 36V trolling Motors and offer the greatest flexibility as a dual purpose battery for deep cycle and starting. Our lithium batteries hold above 13 volts for your trolling motor giving it the power it needs to keep running at its highest thrust throughout the entire day. In contrast lead batteries, their initial voltage starts at 12.8V and quickly go down to 11V in in strong current or winds.  This causes your motor to run slower when you need power the most.  Our batteries use LiFePO4 Lithium Iron Phosphate chemistry, a strong electrolyte capable storing an extraordinary amount of power.


 Read More

 
 

delivering power for the next 5000 cycles

Chargex® battery provides 100% of its RATED power for your first 2000 fishing trips. 

 


MORE STARTING POWER

Guaranteed to start your engine faster.

 
 

MORE VOLTAGE = MORE POWER


When you start your motor a heavy load is placed on your battery. Voltage in lead acid and AGM batteries starts out low and can drop below 10V during cranking causing your motor to spin over slowly. Our lithium batteries hold a steady voltage above 13V giving your starter all the power it needs to start your engine noticeably faster and stronger. 

 
 


Installation Information

Setting up your inverter charger

Our lithium batteries will work with any standard marine 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. 




HAVE QUESTIONS?  Give us a call 1-855-CHARGEX (1-855-242-7439)

Monday - Friday from 8:00am to 6:00pm EST

LONG LIFE
 

Chargex Lithium Ion Batteries can last over 5000 cycles and 20+ years

HIGH PERFORMANCE
 

Designed and Engineered for Deep Cycle and Starting Applications

UNMATCHED QUALITY
 

Bolted Cells for superior Strength and Current Conductivity

100% SAFE 

Stainless Steel 3.2V 5.5AH LiFePO4 cells with Built in Thermal Fuse and High Output BMS.

Plug & Play

Simply Connect your battery cables and you're ready to go.

Modular

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

Yachts with large battery banks can typically reduce 70% of their weight and use around 1/3 of the space required for the same amount of power as their lead bank.

 

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 2000 cycles. After 2000 cycles, the battery will still have 80% of its rated capacity.

 
 

HAVE QUESTIONS?
CALL NOW  1-855-242-7439  OR SEND US A MESSAGE BELOW

We are here Monday through Friday from 8am to 6pm EST and respond to most messages the same business day.

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100% DOD (depth of discharge)

Lithium Ion Batteries allow you to use 100% of the rated capacity whereas agm batteries typically recommend not to drain below 50%


70% Lighter than lead

Lithium Ion Batteries are typically 70% lighter than the same size lead battery


Long Life

Lithium Ion Batteries can last 3000 - 5000 cycles whereas most lead batteries can last 300 - 500 cycles


Zero Maintenance

Lithium Ion Batteries require no maintenance and can hold a full charge for over 1 year


Built In Battery Protection

Every Chargex Battery has a built in fully automatic battery management designed to protect the battery from:

  • Low Voltage
  • Over Voltage
  • Short Circuit
  • Reverse Polarity

these features help protect the 
lithium ion core and your investment.


99.1% Efficient 

Chargex Battery Lithium Ion Batteries are 99.1% efficient and do not heat up during use or charging like lead batteries


No Voltage Drop

Smart Battery Voltage Discharge Graph

Chargex Battery Lithium Ion Batteries have no voltage drop during use. For Marine use this means faster cranking for hard to start engines, Stronger bilge and live well pumps, Brighter Lights and No voltage drop for inverters and voltage sensitive relays.