How to Read a Marine Battery Spec Sheet
How to read a marine battery spec sheet: capacity, CCA, MCA, reserve capacity, discharge and charge limits, cycle life, temperature, IP rating and warranty.
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How to Measure Your Battery Compartment
How to measure a boat battery compartment before buying: length, width, usable height, terminal clearance, hold-downs and cable reach, plus a checklist.
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Buying a Marine Battery Online: What to Check
Buying a marine battery online: how to confirm fit and specs, what to know about lithium shipping, core charges, delivery, warranties and installation.
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Group 24 vs 27 vs 31 Marine Batteries
Group 24 vs 27 vs 31 marine batteries compared: approximate size, typical capacity, cranking, weight and which size suits your boat and battery box.
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GC2 Batteries on Boats: 6V Golf-Cart Size Explained
GC2 golf-cart battery guide for boats: what GC2 and GC2H mean, 6V flooded and AGM options, 12V lithium GC2 batteries, wiring and when to…
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Amp-Hours Explained for Boaters
Amp-hours explained for boat batteries: what Ah means, how ratings are measured, how to estimate runtime, and why usable amp-hours differ by chemistry.
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Why 100Ah of Lithium Isn’t the Same as 100Ah of Lead-Acid
Lithium vs lead-acid amp-hours: why a 100Ah lithium battery outlasts a 100Ah lead-acid, with usable capacity, Peukert effect, voltage and runtime examples.
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Marine Battery Buying Guide: Amp-Hours, Watt-Hours and Value
Marine battery buying guide: choose the right type, chemistry, size and capacity for starting, trolling and house power, with checklists and examples.
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4D and 8D Marine Batteries: Big Cases for Big Loads
4D and 8D marine batteries explained: size, weight, capacity and cranking, where they're used, and how lithium 8D batteries cut weight on big boats.
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