Fortress Solar Generator: Heavy Duty Wet Location, Customizable and expandable with up to 3000W output and 9.6kWh battery capacity


2 reviews

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An introduction to solar generators and Cutting Edge Power:

Solar generators are an excellent investment for hurricane / natural disaster preparation, backup power for your home, camping, tailgating, medical devices, refrigerators, air conditioners, construction equipment and tools, CPAP machines and more.  Future maintenance of Cutting Edge Power products is easy with simple hand tools and off-the-shelf parts, unlike some solar generators that are worthless if one component fails.  Designed in America and professionally wired in Houston, TX so you can rest assured you’ll have the best performing solar generator available. 

Featuring our new high performance solar charge controllers, these solar generators can be used with virtually any battery on earth.  Installing your own batteries is super easy: Just connect the supplied 5/16” ring terminal wires to your battery’s posts. 

Cutting Edge Power lithium battery packs are welded, assembled and tested in Houston, TX.  Even better, our lithium batteries are factory-installed when purchased with a solar generator.  Our lithium batteries provide about +450% lifetime and +100% run time over traditional lead acid batteries.  Plus, they’re about half the size.

More about our lithium batteries



Cutting Edge Power's wind and solar lithium-ion battery modules are the best way to pack more power and run time into a smaller space.*  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 imported from the most reputable cell manufacturers in the world that also supply Tesla and other high performance companies.  Cells are arranged in plastic holders.  These plastic holders are a custom in-house design and they're made in our shop.  The cells are then welded together using a special machine designed and built by Cutting Edge Power!  The plastic holders are then assembled and mounted inside your solar generator.  All of this is done in Houston, TX.  

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

We call them modules, because our entire solar generator product line is modular.  We understand sometimes you need testing before you know how many batteries you need.  More battery modules can easily be added later and it only takes about 5 minutes.

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 modules 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!


Only 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 batteries


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A Cutting Edge Power Customer
Kevin M.
United States United States

Great unit

Using it for an electric fence energizer!

United States United States

Six stars for product and service!

First of all, I have to say that CEP is a fantastic company with outstanding customer service! I ordered the Fortress solar generator model and it arrived EXTREMELY well packaged in cardboard and bubble wrap. Unfortunately, the power inverter, located inside the box, came loose from it's mounting bolts during shipping and caused quite a bit of damage by sliding around inside the box. I took pictures and contacted CEP to inform them of the issue. They responded almost immediately and apologized profusely for something that wasn't really their fault. It's just one of those things that happens sometimes. They arranged for the return of the product for repair/replacement. They paid for all shipping, to and from, and made the entire process as easy as possible. They even expedited the repair of my generator and had it back to me in about two weeks. Top notch service in my book! I'd like to personally thank Robert and Erika for responding so quickly and taking care of one of their customers as a good company should. Also, Sonia was very helpful in answering some of my technical questions about the generator. As for the generator itself, it looks like a well built, quality product. I briefly ran a few appliances just to make sure it works and it performed as expected, which made me happy. I now have peace of mind that I'll have some backup power during an electrical outage. I should also be able to run some power tools around my property when I'm too far away from the house to use the utility power. Awesome product from an awesome company!!!! I highly recommend CEP if you're in the market for a solar generator!