Deep Cycle Marine Battery

Collection: Deep Cycle Marine Battery

Power Queen's deep cycle marine batteries deliver reliable LiFePO₄ power with 4000+ cycles for boats and yachts. Choose 12V, 24V, 36V, 48V lithium deep cycle marine batteries in Group 24, 27, 31, GC2 or 8D sizes, perfect for needing steady performance, long runtimes, and a compact fit on the water.

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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.

5000+real user reviews

30-Day Free Returns

5-Year Warranty

Fast & Free Shipping

  • 5000+real user reviews

  • 30-Day Free Returns

  • 5-Year Warranty

  • Fast & Free Shipping

Technical Benefits & FAQs

Are LiFePO4 batteries suitable for marine use?

For sure. The casing is IP65 rated for waterproof and dustproof protection, resistant to moisture and salt spray, making it more suitable for harsh environments than lead-acid batteries.

Can Power Queen LiFePO₄ batteries be used to charge a portable power station?

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.

How long can a lithium battery run my boat accessories?

A 12V 100Ah LiFePO4 battery can run sonar, navigation lights, and a stereo for over 10 hours. The power delivery is steady.

Are lithium batteries safe to use on water?

Definitely. No gas, no leaks, no thermal runaway like older chemistries. Plus, Power Queen batteries have built-in protections for various issues, including overcharging, over-discharge, overcurrent, high temperature, and short circuit.

I'm low on space, will a LiFePO4 battery fit?

You'll be surprised how compact these are. They are small size and large capacity, making them suitable for most small boats, and only 1/3 the weight of an old-school battery(Vs. same-voltage &capacity lead-acid batteries).

How does the battery handle wave impact on a boat?

Power Queen LiFePO4 batteries feature a durable design and a sturdy ABS case, making them well-suited for marine environments. They can handle bumps, motion, and wave impacts during typical boating use. For added protection, we recommend securing the battery firmly in a dry, well-ventilated compartment.

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