Collection: Group 31 Battery
Power Queen’s Group 31 battery offers long-lasting lithium performance with more LiFePO4 cycles and stable power. Ideal for RVs, boats, and solar systems, it’s a dependable energy solution for deep cycle applications and compact space requirements.
4 products
Why Choose Power Queen?
Lifespan Over 10 Years
Built to last over 4000 deep cycles—10x longer than lead-acid batteries. Use it for years, worry-free.
5-Year Warranty
Use it confidently on the road, at home, or off-grid—our 5-year warranty has your back.
EV-Grade Cells + Smart BMS
Made with EV-grade LiFePO4 cells and a smart battery management system for ultra-safe, consistent performance—at home or off-grid.
Eco-Friendly, 100% Recyclable
Free from hazardous materials and 100% recyclable—safer for your home, and better for the environment.
Save Money, Worry Less
No upkeep, no early failures—save more over time with a battery built for long-term value and peace of mind.
5000+real user reviews
30-Day Free Returns
5-Year Warranty
Fast & Free Shipping
Customer Testimonials
“Great built with superb battery protection. Easy install. Great service and fast shipping. Any question easily answered through email. Very happy with service and product. Always a buyer”
“I have two Power Queen batteries and when I did my installation I contacted Cathy. I received a response quickly with all the necessary information very good customer service !”
“Im using these batteries to power my fridge and cooler charging my phone run my well lights and power tools at my cabin im thinking its going to be a permanent thing works out very well one 100amp battery runs my fridge or cooler for over 24 hours Thanks to power Queen and for very good price shipping is always very fast”
“It has only been installed a week, but the tests have proven it has what it takes and then some!”
“After months of research, power queen is the choice I made. Great battery and charger. I would definitely suggest you give it a shot.”
“This is my second Power Queen 12.8V, 200ah plus battery I've purchased. I'm using these batteries for my portable solar system power setup at my house. The Power Queen batteries work perfectly. I would highly recommend them.”
“Been running 4 24v batteries in a 2S/2P 48V set up for a year now in an RV. So far so good. Have run them down to 30% on a few occasions and still very happy with purchase.”
Works as expected!!!Added to another pq 25.6v 100ah to my solar system for more capacity. Works great, no problems with these batteries!!!
