Marine 1200Wh Lithium Battery for Solar Generators, 3S Li Ion, Made in USA

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  • Regular price $798.97
  • SKU 701575492022


Cutting Edge Power's Marine 1200Wh wind and solar lithium-ion battery gives you all the benefits of lithium batteries in a ready-to-abuse package.  Our unique design is the only lithium battery on the market that's fully encapsulated in silicone.  Silicone encapsulation allows the battery to be waterproof, shock proof, and allows better heat dissipation.  It's the perfect design for outdoor and marine environments around salt water, fresh water, boats, docks, piers and other wet environments.  It is compatible with trolling motors and can be used with a solar panel and our CEP220 for charging.

Leveraging the amazing performance of our Lithium cells and the resulting smaller footprint, our battery modules provide up to +450% lifetime and +100% run time over traditional batteries!

#1: SAFE.

The cells are born in Japan from the most reputable cell manufacturers in the world that also supply Tesla and other high performance companies.  Cells are welded and installed in plastic holders.  The plastic holders are then assembled and mounted inside the battery housing.  The last step is a full silicone encapsulation with cast silicone rubber.  All of this is done in Houston, TX.  Welding is done by a special machine we built that uses our own batteries!

Each cell array is continuously monitored by redundant Battery Management Systems (BMS), not just one like most battery manufacturers.  If one module were to go out, you would still have remaining modules in operation.  The multiple BMS systems protect all cells against overcharging, overdischarging, as well as overcurrent.  They also equalize all the cell voltages and keep the pack running cool.



Our lithium battery will be factory installed in any Cutting Edge Power solar generator when purchased together.  Adding lithium batteries to an existing Cutting Edge Power solar generator is as easy as ordering a pizza with our custom drop downs.  

We don’t believe in proprietary connectors or special permanent installations.  No other connection or additional assembly on your part is required!  Terminals on our battery allow you to quickly and easily replace old batteries.  You can even replace our batteries with a different type or manufacturer!

Why are they so small, what’s the catch?

Our battery cells were pioneered by the auto industry so they have a high energy density in order to keep cars lightweight and extend their range. This means a smaller battery pack can have up to 2x the run time as a standard SLA battery.  Combining the small size and higher energy density, our batteries will maximize your run time in a compact solar generator!

DIYers love our lithium batteries for the small footprint, cool operating temperatures and high energy density!


Our lithium batteries provide about +450% lifetime and +100% run time over traditional lead acid batteries.  Plus, they can do this in about half the size!

Compared with traditional batteries, Cutting Edge Power lithium ion batteries have a higher run time, higher cycle lifetime, better power density and charge faster.  They also weigh less than LiFePO4 and a single module can even provide a higher discharge rate than multiple SLA or LiFePO4 batteries! In wind and solar applications, our lithium batteries have proven to be superior against lead acid, NiCd, AND lithium Iron Phosphate (LiFePO4) batteries.




Lithium Nickel Oxide

Capacity (Wh)


Capacity (Ah)

12V: 100Ah

24V: 50Ah

48V: 25Ah

Cell origin


Assembly location

Houston, TX  USA

Fully charged (100%) voltage

12V: 12.6V

24V: 29.4V

48V: 58.8V

Fully discharged (0%) voltage

12V: 9.0V

24V: 21.0V

48V: 42.0V

Maximum discharge current 1200Wh version

12V: 320A Surge / 200A Continuous

24V: 100A Surge / 50A Continuous

48V: 50A Surge / 25A Continuous

Maximum continuous charge current

Half of the above rated maximum discharge current

 Cell configuration

12V: 3S

24V: 7S

48V: 14S

Temperature rating*

Charge: 0°C to 40°C
Discharge: -20°C to 50°C
Storage: -20°C to 50°C


11-1/2" L x 5-1/16"W x 8-3/4" H 


16.7 lbs

Multiple batteries can be wired in parallel only

Consult factory if you need a special version of this battery.  Do not wire these 12V batteries in series.

Limited Warranty Period

3 years

For temps down to -40°C, check out our battery heater