Image of two Astro Lithium Batteries on a dock. Image of two lithium batteries stacked on a bridge.

Half the Weight
Twice the Power

Real Time
Bluetooth Monitoring

Astro Lithium batteries are engineered to perform in the harshest environments and power the most demanding marine, RV, off-grid, and mobile power applications. Built with advanced lithium technology and premium-grade components, our batteries deliver exceptional durability, long-lasting performance, and reliable power when you need it most.

Designed with safety as a top priority, Astro Lithium uses one of the safest lithium battery technologies available on the market today, giving you confidence on the water, on the road, or off the grid. Learn more about the advanced safety features and technology behind Astro Lithium batteries here.

Longer lasting

Whether you're fishing offshore, cruising the golf course, camping off-grid, or powering your next outdoor adventure, Astro Lithium batteries deliver reliable, long-lasting power you can count on. Engineered for performance and extended runtime, our lightweight lithium batteries help keep your equipment running longer so your adventure never gets cut short by a dead battery.

Let customers speak for us

from 68 reviews

36V 10 Amp Onboard Charger

David F.
36V 10 Amp Onboard Charger
Perfect

Great little charger to wake up and slow charge your lithium battery

Eric P.
12v 6 AMP Charger
Great

Great Product

Steve K.
Astro Lithium
Awesome

Great starting/dual purpose for my pathfinder 2600 hps with verado v10. Doesn’t hesitate to start, stays charged all day. Never have to plug it to charge, at the end of the day it has 100% battery. Super light, enough to run livewells and 16 inch screen without issues. I wish I would’ve done it sooner

Eduardo R.
12V 100Ah Lithium Cranking Dual Purpose Battery
Happy Customer Again

Another convert for a tarpon fisherman in Hernando Beach who purchased the battery and charger. Both lightweight and extremely efficient!

Steve K.
24V 10A Onboard Charger

It’s always a pleasure dealing with the crew over at Astro. Great product. Great service couldn’t be happier. Thank you for all the help.

Bob
24V 60Ah Lithium Battery
Awesome onboard lithium charger

Easiest install - high quality product,

Mickey L.
24V and 12V 3-Bank Onboard Charger

Heavy Duty

Jon W.
36V 100Ah Battery Tray
Great customer service

Outstanding customer service

Paul R.
36V 60Ah Lithium Battery
Customer service. Excellent . 👍👍

Great company to do business with.

Leigh J.
36V 60Ah Lithium Battery
Awesome Company and even better batteries!!

5 star experience all the way. Being a dealer, having a trustworthy relationship with a supplier is key to a healthy business. Astro is no exception, customer service and quality products are their goal. No complaints here, highly recommend this company!

Tony S.
36V 100Ah Lithium Battery
Trolling motor battery

Works as expected, quick reacharge. Fished weekend in Mosquito Lagoon battery barely went down in capacity. Their chargers are great too for seamless incorporating

CC
36V 60Ah Lithium Battery
36V 100 Ah IS A BEAST!!

I've been out 3 times this spring twice on Lake Erie and on in the Niagara River. I happend to pick 3 of the worst days to go out. The winds were extremely bad which forced me to stay on the trolling motor the whole time each day for a total of 16hrs use at 80-90 thrust. After the 3rd outing I decided to use the Bluetooth app to see what my battery percentage was at. The battery was still at 57 percent. I have had zero issues with this battery and no longer worry about having enough power to get through the day. I admit it was hard to spend the money but I would not hesitate to do it again. Also before buying the battery I called the company to ask some questions on which battery to purchase. The gentleman was very helpful and we spent about 15 minutes talking. He answered my questions and went on to explain how the battery was made and ensured me I would be extremely happy. GREAT COMPANY, GREAT PEOPLE AND A GREAT BATTERY

Scott S.
36V 100Ah Lithium Battery
Mckeevers marine

I do a lot of charge on fly installs and these battery’s especially 24v and 36v have been lasting and working good on our installs for trolling motors and much more

Corey M.
36V 60Ah Lithium Battery
Great Multipurpose Battery

Unlimited power for a full day of fishing! No more issues with boat accessories and crank failure at the end of the day! 😊

Steve K.
12V 100Ah Lithium Cranking Dual Purpose Battery

What customers think about the store

This store specializes in lithium batteries and chargers for marine applications. Customers consistently praise exceptional customer service, with staff providing expert technical support and fast warranty replacements. Products are highly regarded for reliabi...

AI-generated from customer reviews.

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12-Volt Lithium Batteries
12-Volt Lithium Batteries
24-Volt Lithium Batteries
24-Volt Lithium Batteries
36-Volt Lithium Batteries
36-Volt Lithium Batteries
48-Volt Lithium Batteries
48-Volt Lithium Batteries

Half THE WEIGHT

Thanks to our advanced cell structure, our lithium batteries are up to 30% lighter than other competitive lithium batteries and less than a third of the weight of traditional lead acid batteries.

Twice the Power

Astro Lithium batteries extend your adventures to limits that you did not know were possible. When it comes to energy efficiency, there is no comparison.

6x Longer Lifespan

Traditional lead acid batteries are expected to produce about 500 life cycles. Our lithium batteries are rated from 3000 cycles. All backed by our 8-Year No Gimmicks Warranty!

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Innovative. Rugged. American.

100% U.S.
Based Company

10% Discount at checkout for all active and retired military, and first responders