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Sigma 3.97kWh Stackable Batteries
$2,399.00 (Primary)
$2,099.00 (Secondary)
FINANCing availAbLE
Under the Inflation Reduction Act (2022), all energy storage systems over 5 kWh qualify for a 30% Federal Tax Credit.
The Sigma Stackable Storage system is an advanced, scalable battery solution designed to meet a wide range of energy storage needs. With a base capacity of 3.97 kWh, it can be expanded up to 27.8 kWh, ensuring flexibility and adaptability for various applications. Featuring a 90% depth of discharge and high round-trip efficiency, Sigma delivers reliable performance with minimal energy loss. The system is easy to install with a plug-and-play setup, and its robust design allows for both indoor and outdoor use. With a voltage range up to 459.9 V and wide temperature tolerance, Sigma Stackable Storage is built to perform in diverse environments.
To obtain warranty service, please contact our customer service team via telephone at (888) 200-5414, or via email at support@joulecase.com. If our customer service team determines that this is a warranty matter, Joule Case will provide appropriate packaging and will arrange for shipping back to our facility. You must properly package the product and provide proof of purchase and purchase date with the product. Please ensure any returns are addressed to:
Joule Case Warranty Dept
121 E 38th St, Suite 102,
Garden City, ID, USA 83714.
We will process your return and send your repaired or replacement product to you, at our expense, for warrantied products being shipped to locations in North America. For product purchased or being shipped outside of North America, if you purchased through a local distributor, please contact the local distributor from whom you purchased the product, or email support@joulecase.com to obtain further distributor information.
Shipping costs are additional and are based on the size of the order and the destination.
Expandable battery system designed to charge using renewable or on-grid sources.
Traditional generators produce toxic, harmful fumes that are bad for humans and the environment.
Our batteries are silent—no shouting to have a conversation or being drowned out by the constant hum of a generator.
The stackable design gives you the control to add more power based on your needs.
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