Power Queen’s off-grid batteries deliver zero-maintenance, solar-ready power for cabins, cottages, and remote homes. Scalable from 12V to 48V systems, supporting up to 20,480Wh for weeks of backup. Built with advanced BMS, LiFePO₄ cells, and optional low-temp protection or auto-heating for cold climates. DIY-friendly, upgrade for long-term energy independence.
5 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.





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FAQ
It depends on your setup. For 10kWh of daily use, four 12V 200Ah lithium batteries will do the job. Always plan with a bit of buffer for cloudy days.
The LiFePO4 batteries have better efficiency, zero maintenance, way more usable capacity, and a lifespan. The Lead-acid batteries are heavy and prone to discharge, in the long run, lithium batteries are more cost-effective.
No problem. As long as the MPPT controller supports the LiFePO4 mode, the battery voltage matches the MPPT requirements, and the inverter input voltage is compatible.
Yes. Power Queen batteries can discharge at temperatures as low as –20°C, and charge above 0°C. For heated battery models, charging is possible even at temperatures as low as –20°C. This makes them suitable for remote cabins or camper use.
Almost none. No topping off, no equalizing. Just make sure the terminals stay clean and tight. That’s it.
