Fortress Evault 18.5Kwh

Fortress Power Lithium Battery

Fortress Power Lithium Battery is a lithium battery provider based outside of Philadelphia focusing on battery options that range from 5 kilowatt-hours to 200 kilowatt-hours. So, from the slow residential space to the small commercial space.

Fortress Power Lithium Battery

Fortress Power options are life pro 4 and 48. Fortress Power’s mission is to provide clean energy for many homes and businesses around the world, and thanks to the support from the authorized distributors and installers. Fortress Power is able to make that dream a reality.

Fortress Power Lithium Battery

Fortress Power understands that a quality easy to install and flexible battery options that customer has been asking for our engineers here have designed two battery options that will make it just for you. And e-flex 5.4s here on the right and our eVault 18.5.

Fortress Power Products

Fortress eVault 18.5kWh

Fortress eVault 18.5kWh
Fortress eVault 18.5kWh
Price: $12,420.00
The Fortress eVault 18.5kWh lithium battery uses the safest, environmentally friendly Prismatic Lithium Iron Phosphate cells available! Expandable from 18.5 kWh to 222 kWh for both residential and commercial buildings.


The eVault 18.5 is 18.5 kilowatt-hours and can stack up to 12 for 200 kilowatt-hours. Some other cool features of the eVault that has an LCD display on the front. So, the client can view their state of charge voltage and the output of the battery itself.

It also comes on wheels to be transported easily and it is approved for the s-ship incentive at 17.7 kilowatt-hours and literally gonna be getting more bang for your buck. This comes with a contractor-based BMS to ensure proper charging and discharging as well.

Fortress Power 5.4kW

Fortress Power 5.4kW
Fortress Power 5.4kW
Price: $3,850.00
Quite possibly the most well-made battery on the market, the eFlex 5.4 kWh lithium battery from Fortress Power comes with built-in wifi for remote monitoring and troubleshooting to complement its 10-year warranty with the safe and premium prismatic Lithium-Iron-Phosphate cells.

This year, Fortress Power launched our newest battery the e-flex 5.4 as seen here on my left it’s 5.4 kilowatt-hours and gets back up to 15 for 80 kilowatt-hours. This can be used in your typical home energy storage solution, telecommunication projects, RV mobile, and even marine applications.

This comes with an ip65 rated aluminum enclosure. So, this can be installed outside and it comes with the same battery management system as its old brother, the e-vault. This unit can also be used in a floor-standing wall-mounted, or serna rack application, and up to that 80 kilowatt-hours.

Final Words

You’re going to be good to go, both options use prismatic sounds, and are compatible with many of the 48 volt options available on the market.

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