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  • 12V 390CCA Group U1 LiFePO4 Starting Battery 12V 390CCA Group U1 LiFePO4 Starting Battery

    Pro-Guide Lithium

    12V 390CCA Group U1 LiFePO4 Starting Battery ( 12V)

    10 Reviews

    The Pro-Guide Lithium U1X is a high-performance starting battery designed for Lawn & Garden equipment and other small engine applications, delivering 390 Cold Cranking Amps for reliable starts in any season. It features convenient Quad Terminals,…

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  • Pro-Guide Lithium Pro-Guide Lithium

    Pro-Guide Lithium

    12V 100AH Group 24 LiFePO4 Starting Battery ( 12V)

    10 Reviews

    Pro-Guide Lithium // 24M100-ST STARTING BATTERY Exceeds All Mercury Lithium Starting Battery Requirements ProBoost 1000 PbEq CCA / 100AH: Powering (2-3) 12” Graphs & live scope all day on the water Brass Dual-Terminals Introducing the...

    $899.99
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  • 12V 235AH Group 31 (Tall) LiFePO4 Dual Purpose Battery 12V 235AH Group 31 (Tall) LiFePO4 Dual Purpose Battery

    Pro-Guide Lithium

    12V 235AH Group 31 (Tall) LiFePO4 Dual Purpose Battery ( 12V)

    10 Reviews

    The Pro-Guide PGL31M235-DP dual-purpose lithium battery provides outstanding performance, featuring a 235 amp-hour capacity (3008 watt-hours), a robust 200-amp BMS, and IP67-rated durability. Enhanced with Bluetooth connectivity for real-time monitor…

    $1,699.99
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  • 12V 180AH Group 31 LiFePO4 Dual Purpose Battery 12V 180AH Group 31 LiFePO4 Dual Purpose Battery

    Pro-Guide Lithium

    12V 180AH Group 31 LiFePO4 Dual Purpose Battery ( 12V)

    10 Reviews

    The Pro-Guide PGL31M180-DP is a dual-purpose lithium battery delivering reliable power with 180 amp-hours (2304 watt-hours). Built with an IP67 waterproof case, robust 200-amp BMS, Bluetooth connectivity, and the innovative Pro-Boost mode reserving 2…

    $1,399.99
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  • 16V 50AH LiFePO4 Deep Cycle Battery 16V 50AH LiFePO4 Deep Cycle Battery

    Pro-Guide Lithium

    16V 50AH LiFePO4 Deep Cycle Battery ( 16V)

    10 Reviews

    Pro-Guide Lithium 16VM50 With A Cycle Life Rated Up To 3000 Cycles, The Pro-Guide Lithium 16VM50 Battery Is Your New Favorite Choice For Powering Your Marine Electronics When you need power that’ll last, the 16VM50 is there to support you. Get…

    $499.99
    $XX/Cycle
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  • 12V 75AH Group 24 LiFePO4 Starting Battery 12V 75AH Group 24 LiFePO4 Starting Battery

    Pro-Guide Lithium

    12V 75AH Group 24 LiFePO4 Starting Battery ( 12V)

    10 Reviews

    Pro-Guide Lithium // 24M75-ST STARTING BATTERY Meets All Mercury Lithium Starting Battery Requirements ProBoost 800 PbEq CCA / 75AH: Powering (2-3) 12” Graphs & live scope all day on the water Brass Dual-Terminals Introducing the...

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    $499.99
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ProGuide Battery vs Other Batteries

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FAQ Resource Hub
Which battery type is best for my application (golf cart, marine, RV, solar, mobility, industrial)?
The best battery depends on use: Lithium (LiFePO₄) offers longest cycle life (2,000–5,000 cycles), lightweight design, and high usable capacity, making it ideal for golf carts, RVs, marine, and solar. AGM/SLA are cost-effective, maintenance-free options for backup or starter needs, though cycle life is shorter. Flooded lead-acid works well for industrial or solar setups where maintenance is manageable. Always match voltage, dimensions, and charging compatibility to your system.
How long will my battery last?
Battery life means runtime (hours per charge) and lifespan (years/cycles). Runtime = (Voltage × Ah) ÷ Load. Example: a 48V 100Ah battery (4,800Wh) running a 1,000W motor lasts ~4.8 hours at 100% DoD. LiFePO₄ delivers 2,000–5,000 cycles; AGM/SLA typically 300–1,000. Calendar life averages 8–12 years for lithium and 3–7 for lead-acid.
How do I choose the right battery size?
Match voltage to system requirements (12V, 24V, 48V). Calculate daily energy use: load (W) × hours. Convert to Ah: Wh ÷ Voltage. Factor usable capacity: ~90% for lithium, ~50% for lead-acid. Add 10–20% margin for inefficiency.
Can I replace SLA/AGM with lithium?
Yes, but confirm compatibility. Voltage should match, and chargers must support LiFePO₄ profiles. Lithium needs a built-in BMS for protection. Ensure dimensions and terminals fit. Upgrading often gives double usable capacity, faster charging, and 3–5× cycle life.
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