36V 80AH Lithium Battery Kit Chargex®

Model #: CXK3680 SKU: 36-LIB-80-K Weight: 90 lbs

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Price $2,999.99 $3,549.96 +Add to wishlist +Add to gift registry

Product Details

The Chargex® CXK3680 - Is a 36V 80AH Lithium Ion Battery Kit featuring three 12V 80AH Lithium Ion Batteries and a Free DP-SS3 3 Bank 10A Charger compatible with the latest and most advanced Lithium Iron Phosphate - LiFePO4 Battery Technology.

Designed for Marine & RV applications, the CXK3680 is engineered to handle extreme vibration and is Plug and Play for any application that currently uses lead acid, gel or agm batteries. Our High Output 3.2V Stainless Steel LiFePO4 Cells are bolted together for Rigid Strength and Current Conductivity vs. the tab welded method.

The fully automatic Built In Battery Management System provides cell balancing, over charge or over discharge protection, short circuit and reverse polarity protection all making the Chargex CXK3680, one of the world's safest and most advanced lithium batteries.

The Chargex® CXK3680 comes with the industries leading - Lifetime Warranty.

12V 300AH Lithium Battery Data Sheet
CX80 - 12V 80AH Lithium Ion Battery Data Sheet

Material Safety Data Sheet  (MSDS)

12v 3 bank 10 amp lithium ion battery charger

Free SS3 12V 10A 3 Bank Charger


Nominal Voltage (12.8V x3) 38.4V
Charge Voltage 14.4V - 14.6V
Peak Discharge (5 Sec) 800A
Continuous Charge / Discharge Rate 80A
Capacity (amp hours) 80AH
Capacity (watts) 960W
Chemistry Lithium Iron Phosphate (LiFePO4)


Model CXK3680
Group Size 27
Weight 28LBs x3 85Lbs
Length 12.75"
Width 6.88"
Height 9.88"


Usable Capacity (AH) 86.4AH
Depth of Discharge >100% DOD
Reserve Minutes @ 20A 240 min
Reserve Minutes @ 50A 90 min
Self Discharge <3% per mo
Chemistry Lithium Iron Phosphate (LiFePO4)
Cell Type Cylindrical
Modular Series or Parallel Connection


Built in Automatic Battery Protection System        Internal
Automatic Low Voltage Disconnect 30V
Automatic Short Circuit Protection Instant
Automatic Over Voltage Protection 47.4V
Automatic Reverse Polarity Protection Instant
Internal Cell Thermal Safety Fuse Yes
Flame Retardant Electrolyte Yes
Length Way Circuit Boards Yes
Automatic Internal Cell Balancing Yes
Automatic Fault Recovery Yes
Explosion Proof Stainless Steel Cells Yes


Celsius Fahrenheit Usable Capacity
60 140 103%
50 122 102%
40 104 100%
30 86 100%
20 68 98%
10 50 92%
0 32 83%
-10 14 80%
-20 -4 70%
-30 -22 60%
-40 -40 10%
-50 -58 0%



Standard Shipping UPS GROUND
Expedited Air Shipping UPS WORLDWIDE EXPRESS
Shipping Time 24 HOURS On In Stock Products


Repair or Replace First 5 Years
Repair or Pro Rate Life Time
Detailed Warranty Information Warranty

This Product Is Perfect For

Motorhomes, Travel Trailers, Fifth Wheels, Boats, Yachts, Sailing, Trolling Motors, Electronics, Solar Backup Power, and Other Deep Cycle Applications.

This 36V 80AH Lithium Ion Battery is the perfect replacement from a group 27 AGM, GEL or Lead Acid Battery. Designed as a "drop in replacement
" meaning all you have to do is take out your old group 27 battery and place the Lithium Battery in the same way.