LatestBoat Electrical
Marine Alternator Charging Guide: Protect Batteries and Improve Output
Improve marine alternator charging by matching regulator, battery chemistry, cable, temperature protection and engine duty.
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Boat Electrical
Marine batteries, charging, power distribution and electrical-system buying guides.
Boat Battery Switch Wiring: 1-2-Both, ACR and Safe Operation
Understand 1-2-Both switches, dual-circuit switches and automatic charging relays before planning a boat battery system.
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Marine Battery Size Calculator Guide: Ah, Reserve Capacity and Load
Size a marine battery bank using daily amp-hours, usable depth of discharge, voltage, charging capacity and reserve.
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How to Read Your Boat’s Gauges Without Guessing
Most boaters glance at their gauges without really reading them — until one of those needles is trying to tell them something…
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How to Charge a Marine Battery Without Slowly Killing It
A marine battery that dies after a year probably wasn’t a bad battery — it was probably charged wrong. Boat batteries live…
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Marine Battery Charger Buying Guide: Banks, Amps and Chemistry
Choose an onboard marine battery charger by battery count, amps per bank, chemistry, recovery time and the boat’s shore-power environment.
Read articleLithium vs AGM Marine Battery: Weight, Runtime and Charging
Understand the practical tradeoffs between LiFePO4 and AGM batteries before changing a trolling, house or marine electrical bank.
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Trolling Motor Battery Size and Runtime Guide
Select battery voltage, count and amp-hour capacity for a trolling motor, then estimate realistic runtime and plan safe wiring and charging.
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