Power Queen, partnered with FMCA, provides trusted power. Our RV lithium batteries are compact, solar-compatible, and fit tight spaces. The deep cycle LiFePO₄ design powers your fridge, AC, and lights, delivering long-lasting, low-maintenance energy for RVs, campers, trailers, or motorhomes on long trips.
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Why Choose Power Queen?
10-year Lifespan
Delivers over 4000+ deep cycles (10-year lifespan), 8 times the lifespan of traditional lead-acid batteries, saving you time and replacement costs.
5-Year Warranty
Backed by a full 5-year warranty for quality and performance. Get reliable coverage and long-term assurance with every Power Queen battery.
Smart BMS Technology
Advanced battery management system protects against overcharge, short-circuit, and low-temperature damage,built for safety in every season.
Eco-Friendly & Lightweight
Super lighter than lead-acid batteries and made from recyclable materials, portable power with a cleaner footprint.
100% Safe & Reliable
Built with EV-grade LiFePO4 cells and tested for tough environments, stable, safety, and ultra dependable.





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Why Choose Power Queen LiFePO₄ for RV?
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Technical Benefits & FAQs
That depends on how much power you typically use per day. For many RV users running lights, fridge, fans, and TV overnight, a 12V 200Ah lithium battery usually covers things with some room to spare.
No, we do not recommend using Power Queen batteries to charge portable power stations such as EcoFlow or Bluetti. This may lead to over-discharge, triggering the battery’s protection mode and causing it to remain in a low-voltage state that cannot be reactivated.
For RV applications, a 12V Lithium battery is the most common and compatible choice. Based on typical daily power consumption (including a fridge, lights, water pump, and small electronics), you can expect to use around 2000Kw–3000Kw per day. Since Power Queen LiFePO₄ batteries are ideally discharged up to 80% of their capacity, you'll need a total capacity of around 200–300Ah to support a 2-day off-grid trip.
In most cases, yes. Just double-check that your charger supports LiFePO4 charging voltage (around 14.4V). If not, you may want to upgrade for faster and safer charging.
You'll still get good discharge performance down to –4°F. Just keep in mind that charging below freezing needs a battery with built-in low temp protection, Power Queen batteries include that.
Absolutely. Whether you're trying to run a big inverter or just want more capacity, Power Queen batteries support series and parallel connections up to 4P4S.
You’re looking at 4,000+ full cycles, which can be 10 years for most people. And yes, we cover them with a 5-year warranty.