Lithium Battery Upgrades
Trolling Motor Lithium Battery Setup
How to size, wire, fuse, and charge a lithium battery for your trolling motor, from a marine electrician who has rewired plenty…
Marine Battery Banks
Deep Cycle Battery Buying Guide
A practical, no-hype look at flooded, AGM, gel, and lithium deep cycle batteries, with real costs and who each one actually suits.
Lithium Battery Upgrades
Best Lithium Battery Sizes for Small Boats
A practical guide to picking the right LiFePO4 size for your small boat, from 50Ah electronics-only setups to full-day trolling motor banks.
Lithium Battery Upgrades
Converting a Sailboat to Lithium: A Refit
One boat, one refit. What a sailboat lithium conversion actually cost, what went right, and the charging mistakes to avoid.
Lithium Battery Upgrades
Signs Your Boat Lithium BMS Has Faulted
That sudden total blackout is usually the BMS, not a dead battery. Here is how to read the real fault signs before…
Lithium Battery Upgrades
Lithium Boat Battery Cost Breakdown
Real 2026 price ranges for lithium boat batteries, from budget drop-ins to premium banks, plus the wiring and labor costs the shelf…
Lithium Battery Upgrades
Wiring an Alternator to a Lithium Bank
How to wire your engine alternator to a LiFePO4 bank without cooking the alternator, using a DC-DC charger, correct wire gauge, and…
Lithium Battery Upgrades
Do You Need a DC-DC Charger for Lithium?
A DC-DC charger caps alternator current so lithium cannot cook it. Here is when you need one, what size to buy, and…
Lithium Battery Upgrades
Lithium Drop-In vs Custom Cell Builds
Drop-in vs custom lithium, compared honestly by a marine electrician: cost per amp-hour, install time, BMS control, warranty, and which fits your…
Inverters and Charging
Marine Alternator Upgrade Basics
A beginner-friendly primer on upgrading your boat's alternator, from sizing to smart regulators, so you fill a big house bank fast.
Lithium Battery Upgrades
5 Lithium Battery Mistakes That Kill Banks
The five lithium battery mistakes that kill marine banks early, and the simple fixes a working boat electrician uses to make them…
Inverters and Charging
Choosing a Marine Battery Monitor
A plain-spoken guide to picking a shunt-based marine battery monitor that finally tells you the true state of charge of your house…