Charging Systems & Alternators

Get your batteries charged efficiently and safely

Charge Smarter, Not Longer

Your alternator is often the primary charging source when underway, but stock marine alternators are typically undersized and paired with simple internal regulators that don't fully charge your batteries.

A proper charging system means getting your batteries to full charge faster, extending battery life, and having confidence that your house bank will be ready when you need it.

We upgrade alternators, install external regulators, and integrate multiple charging sources so your system works together efficiently.

High-Output Alternator

Charging System Services

High-Output Alternators

Replace undersized stock alternators with properly rated units. We match the alternator to your battery bank and engine capabilities.

External Regulators

Smart multi-stage regulators that properly charge your batteries through bulk, absorption, and float stages. Essential for lithium compatibility.

Shore Power Systems

Battery chargers and inverter-chargers sized for your bank. Proper installation with appropriate circuit protection and isolation.

Solar Integration

Solar panels and MPPT controllers as supplemental charging. We size systems realistically and integrate with your existing setup.

Battery Combiners

Automatic charging relays (ACRs) and DC-DC chargers for multi-bank systems. Charge your house and start batteries appropriately.

System Monitoring

Battery monitors and shunts so you know your actual state of charge. No more guessing if you're really at 50% or 20%.

Common Upgrade Paths

Basic Alternator Upgrade

High-output alternator with external regulator. Dramatically improves charging speed and battery health. Often the best first upgrade.

Lithium-Ready Charging

External regulator with lithium profile, temperature sensing, and BMS integration. Required for safe lithium battery charging from alternator.

Complete Charging Overhaul

Alternator, shore charger, and solar all working together. Coordinated charging from multiple sources for maximum efficiency.

Monitoring Addition

Battery monitor with shunt, showing real-time consumption and state of charge. Know exactly where you stand.

Ready to Upgrade Your Charging?

Tell us about your current setup and charging challenges. We'll recommend the right upgrades.

Request Service