Lifetime
Customer Support
7MWh+
Capacity Deployed
100+
Customer Reviews
USA Based
Shipping & Support
Mammoth RE specializes in large scale 48V lithium battery solutions for off-grid residential, commercial and light industrial applications.
Designed and Assembled in the USA, backed by a comprehensive 10-Year Warranty.
Designed and Assembled in the USA, backed by a comprehensive 10-Year Warranty.
Mammoth PLUS 9.6kWh LiFePO4 Battery Bank On Wheels
The Mammoth PLUS battery is a leading lithium ion-based battery bank that can be used in a variety of applications. With a 190Ah at 48V (9.6kWh) this powerful lithium battery is by far one of the best and most cost-efficient batteries in its class and on the market today!
Capable of being connected in parallel with up to 8 total powerwalls, combining high quality components with American design and assembly, we've made the battery we would want!
Capable of being connected in parallel with up to 8 total powerwalls, combining high quality components with American design and assembly, we've made the battery we would want!
Starting at $3,499
Mammoth PRO 23.5kWh LiFePO4 Battery Bank on Wheels
Looking for the biggest and best lithium battery on the market today!? Look no further. The Mammoth PRO is a 23.5kWh lithium battery bank on wheels.
Capable of being connected in parallel with up to 8 total powerwalls, combining high quality components with American design and assembly!
Capable of being connected in parallel with up to 8 total powerwalls, combining high quality components with American design and assembly!
Starting at $8,289
FORCE 15K ESS - 8,000W 120/240V Output + 15kWh Lithium Battery
Step into a new era of energy freedom with the FORCE 15K ESS, a groundbreaking energy storage system designed to exceed every expectation. Designed with convenience in mind, the FORCE 15K ESS, boasts a 2-piece structure that sets it apart from the rest.
Starting at $6,879
Frequently Asked Questions
What warranty is included?
When you buy this battery, you are covered by the full manufacturer warranty of 10 years. Plus, you’ll receive our lifetime customer and technical support.
What is the capacity of each battery?
The Mammoth PLUS have 9.6kWh capacity and the PRO have 23.5kWh capacity.
What's Included with the battery?
The Mammoth batteries comes with pre-installed Anderson connections making it ready to go for quick installation to any inverter, charge controller or bus bar. With the SB175 Anderson to ring terminal cable already included, you'll be up and running in no time!
How much does shipping cost?
Shipping is calculated at checkout. Because we specialize in shipping straight to our customers, you'll get the lowest possible shipping rates when you buy from us. If you have any questions about shipping, you can give us a call at 877-242-2792
Do you offer financing?
Yes we do! We have 2 financing options which you can learn more about if you keep scrolling down this page.