Long-lasting Power

Unmatched Performance

Exceptional Reliability

Pro-Guide Lithium

PGL24M75-ST ( 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
$XX/Cycle

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Pro-Guide Lithium

PGL100AH 36V System

10 Reviews

If you're looking to upgrade your trolling batteries to 100AH lithium batteries, this is the set up for you! Package Includes: QTY 1 - PGC-410 4-Bank Lead Acid/LiFePO4 Charger QTY 3 - PGL 24M100 Lithium Batteries

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Was: $2,499.96

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Pro-Guide Lithium

PGL 100AH 24V System

10 Reviews

If you're looking to upgrade your trolling batteries to 100AH lithium batteries, this is the set up for you! Package Includes: QTY 1 - PGC-310 3-Bank Lead Acid/LiFePO4 Charger QTY 2 - PGL 24M100 Lithium Batteries

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Was: $1,709.97

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Pro-Guide Deep Cycle Marine/RV

PGM 27M180 ( 12V)

10 Reviews

Fishing for some isn’t just a hobby, it’s an addiction. The Pro-Guide deep cycle batteries are truly for the prosumers out there! The 27M180 is our highest rated deep cycle battery 180 Minutes of Reserve Capacity @ 25amps. The..…

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$212.95
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Pro-Guide Deep Cycle Marine/RV

PGM 27M160 ( 12V)

10 Reviews

Fishing for some isn’t just a hobby, it’s an addiction. The Pro-Guide deep cycle batteries are truly for the prosumers out there! The 27M160 is our highest rated deep cycle battery 160 Minutes of Reserve Capacity @ 25amps. The..…

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$195.95
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Pro-Guide Starting & Dual Purpose

PGM 27M800 ( 12V)

10 Reviews

Fishing for some isn’t just a hobby, it’s an addiction. The Pro-Guide deep cycle batteries are truly for the prosumers out there! The 27M800 is our highest rated deep cycle battery 182 Minutes of Reserve Capacity @ 25amps. The..…

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$208.95
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Pro-Guide Deep Cycle AGM Tournament Series

PGM 27AGM ( 12V)

10 Reviews

Battery Outfitters is proud to announce the Pro Guide AGM marine battery. Tested in the field by professional anglers for the last six years, this product is not to be taken lightly! Offering a Group Size 24AGM, 27AGM, and 31AGM dual purpose battery,…

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Pro-Guide Deep Cycle AGM Tournament Series

PGM 24AGM ( 12V)

10 Reviews

Battery Outfitters is proud to announce the Pro Guide AGM marine battery. Tested in the field by professional anglers for the last six years, this product is not to be taken lightly! Offering a Group Size 24AGM, 27AGM, and 31AGM dual purpose battery,…

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$372.95
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Long-Lasting
Power

10 Year Warranty on
Lithium Batteries
Unmatched Performance

Long-Lasting Power
Pro-Guide AGM Starting and Deep Cycle

PGM 27MX935 ( 12V)

10 Reviews

The 27MX935 AGM (Absorbent Glass Mat) marine starting battery is a high-performance power source designed specifically for marine applications, offering superior starting power and durability. Engineered with advanced AGM technology, these batteries …

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$365.95
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ProGuide Battery vs Other Batteries

	ProGuide	Others
Lightweight and Long-Lasting	✓	✖
Trusted by Professionals	✓	✖
36+ month Free Replacement	✓	✖
10 Year Warranty	✓	✖
45 Years of Expertise	✓	✖
Long term Reliability	✓	✖

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.

What charger should I use and how long does charging take?

Use a LiFePO₄ charger for lithium; smart 3-stage chargers for AGM/SLA. Charge time ≈ Battery Ah ÷ Charger Amps. Example: 100Ah ÷ 20A ≈ 5 hours. Lead-acid typically takes longer due to absorption phase.

How do I maintain my battery

For lithium: keep within safe charge/discharge limits, avoid extreme heat, and store ~50% charged if unused. For AGM/SLA: avoid deep discharges, recharge promptly, and check flooded cells for water. Clean terminals and use proper chargers.

What’s the difference between deep-cycle and starter batteries?

Starter batteries deliver short, high current bursts (e.g., cranking engines) but tolerate few cycles. Deep-cycle batteries provide steady power over long periods and withstand frequent discharges, making them ideal for RVs, boats, solar, and golf carts.

How do I size a battery bank for solar, boat, or RV?

Calculate daily energy needs (Wh). Multiply by desired days of autonomy. Divide by usable DoD (50% lead-acid, 90% lithium). Convert to Ah using chosen voltage (Wh ÷ V). Add 10–20% margin for inverter losses.

Are SLA/AGM batteries safe?

Yes, when used properly. SLA/AGM are sealed and spill-proof, but avoid overcharging or heat. Flooded types need ventilation and water refilling. Always recycle old batteries responsibly. LiFePO₄ is even safer due to stable chemistry.

How do I test a battery and spot failure signs?

Check resting voltage (12V SLA should read ~12.6–12.8V). Perform a load test to see if voltage drops sharply. Flooded types can be checked with a hydrometer. Signs of failure include swelling, leaks, overheating, or inability to hold charge.

How long does charging take?

Formula: Charge hours ≈ Battery Ah ÷ Charger A. Example: 100Ah ÷ 20A = 5 hours. Lead-acid may take longer due to inefficiencies; lithium is faster and more efficient. Always use the recommended charger profile.

What specs matter most when comparing batteries?

Key specs: Voltage, Ah, chemistry, cycle life, DoD, charge/discharge rates, warranty, dimensions, weight, BMS features, and certifications. For quick decisions, compare energy (Wh = V × Ah) and cycle life at specific DoD.

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