
Lithium Batteries
Check out our new compact heated 12v 210ah battery! Lifetime warranty!

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Solar Panels
Shop NowPair with a solar controller to harness power from the sun to charge your lithium batteries
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Inverter Chargers
Shop NowConvert DC power from your batteries to clean 120V AC power for household appliances, these models include a built in transfer switch for hard wired installation and also act as a battery charger
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Inverters
Shop NowConvert DC power from your batteries to clean 120v AC power for household appliances, these models include a built in transfer switch for hard wired installation
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Battery Monitors
Shop NowMonitor you entire battery bank with one simple device, shunts allow much more precise state of charge indication than voltage reading alone
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About RML
Our foundation is built on a commitment to providing exceptional service and support. Each lithium battery product is independently tested in-house for quality assurance. Plus, our tech support is based right here in the US.
We take pride in delivering exceptional value for your investment. Our dedication doesn't end with the purchase – it extends through our lifetime warranty based on the cycle life of all products sold by RML.
Considering transitioning to advanced lithium technology? We offer hassle-free upgrades to lithium technology, and our products provide seamless drop-in replacements for lead-acid batteries.
Best Sellers
View customer favorite batteries that offer excellent capacity, compact sizes, and a price you can't beat.
Why Choose RML
When it comes to purchasing products, it's important to know that you're getting your money's worth. That's why we stand behind everything we sell - we want our customers to feel confident in their purchases. Additionally, our US based tech support ensures that any questions or issues are quickly and efficiently resolved. But we don't just sell products - we're passionate about providing the best value products on the market. That's why we independently test all Rocky Mountain Lithium Batteries before offering them to our customers. We believe in our products and are dedicated to providing top-notch service to all of our customers.
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Best Energy Solutions
Read MoreOur products offer seamless drop-in replacements for lead-acid batteries, and our hassle-free upgrade process ensures a smooth transition to lithium technology. With longer lifespans and increased efficiency, our lithium batteries are a smart investment for anyone in need of reliable and long-lasting power.
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End-To-End Services
Read MoreOur goal is simple – deliver top-quality products at the best prices. We're here to support you with excellent customer service and tech support every step of the way. Transitioning to lithium batteries is made simple with Rocky Mountain Lithium.
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Lifetime Warranty
Read MoreWe take pride in our dedication to our customers, which doesn't end with the purchase of our products. We go above and beyond by offering a lifetime warranty based on the cycle life of all products sold by RML. This means that we stand behind our products and believe in their longevity and durability.
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Have Questions? RML is Here to Help You!
CONTACT USIf you have questions or are interested in learning more, please contact us today.
Let customers speak for us
from 1 reviewsAwesome service, great batteries, & a very fair price point for the value.
