Marine Inverter Chargers

Marine Inverter Chargers and Pure Sine Wave Inverters for Boats

A marine inverter charger converts your house battery bank into stable 230V AC power. It also recharges those batteries whenever shore power or a generator is connected. This collection covers Victron MultiPlus, MultiPlus-II, Quattro and EasySolar inverter chargers, plus Victron Phoenix and Enerdrive ePOWER pure sine wave inverters. Options run from compact 250VA units for small cruisers up to 48V 20000VA systems for large motor yachts, houseboats and commercial vessels.

Inverter Chargers vs Standalone Inverters

A standalone inverter, such as the Victron Phoenix VE.Direct, Phoenix Smart or Enerdrive ePOWER range, only supplies AC power from your batteries. An inverter charger combines several functions in one unit:

• Inverter: provides pure sine wave output for sensitive electronics, refrigeration and galley appliances.
• Multi-stage battery charger: charges from shore or generator power.
• Automatic transfer switch: moves loads between AC input and battery power.

On a boat, that saves mounting space and simplifies wiring. Each range has its own strengths:

• Victron MultiPlus and MultiPlus-II: a single AC input with PowerAssist, which supplements limited marina supply with battery power during peak loads.
• Victron MultiPlus Compact: a smaller footprint for tight engine bays and lockers.
• Victron Quattro and Quattro-II: two AC inputs, so shore power and a generator can both be connected and managed automatically.
• Victron EasySolar, EasySolar-II GX and Multi RS Solar: an integrated MPPT solar charge controller, with GX models adding built-in system monitoring.
• Enerdrive 2000W/80A and 3000W/100A inverter chargers: high charge currents for 12V house banks.

For a deeper explanation of features, surge capacity and sizing, see our guide to understanding inverters and how to size them.

Sizing and Selection Tips

• Match system voltage first: 12V suits smaller recreational boats. 24V and 48V models reduce DC current, cable size and voltage drop on vessels with heavier loads.
• Add up continuous AC loads: total the appliances you will run at the same time, then allow headroom. A 3000VA inverter charger, such as the MultiPlus 12/3000/120 or 24/3000/70, is a popular choice for microwaves, coffee machines and power tools.
• Read the model code: Victron names follow voltage/VA/charge current/transfer current. For example, 24/5000/120-50 means a 24V, 5000VA unit with a 120A charger and 50A transfer switch.
• Check charge rate against battery capacity: pair the charger output with your marine deep cycle lithium or AGM batteries to suit their recommended charge current and shorten generator run times.
• Plan your other charge sources: if you also charge from solar or the engine alternator, see our marine battery chargers and solar regulators.

Choose the Victron or Enerdrive inverter charger that matches your vessel's voltage and AC demand. If you need help confirming sizing, transfer current or compatibility with your battery bank before ordering, contact our technical team.