Victron Energy Orion XS DC-DC Battery Charger

The Orion XS is Victron's flagship DC-DC battery charger — engineered from the ground up for dual-battery systems charged from an alternator. It pushes industry-leading 98.5% efficiency and up to 70 A of adjustable charge current, keeping your service bank topped up while protecting the starter battery it draws from. It's the right tool for boats and vehicles with long cable runs or modern smart alternators that don't put out enough voltage to charge a second bank on their own.

Adjustable current and an adaptive 4-stage algorithm

Charge current is adjustable in 0.1 A steps via VictronConnect — up to 50 A on the 12/12-50A and 1400, or 70 A on the 12/12-70A — so you can match the charger to your alternator's capacity and avoid overloading it. The adaptive 4-stage algorithm shortens absorption after a shallow discharge and extends it after a deep one, with fully programmable profiles plus eight pre-programmed battery presets for lead-acid and lithium banks. It can also run as a fixed-voltage DC power supply.

Built for smart alternators (Euro 5 / Euro 6)

An integrated engine-shutdown detection mechanism only activates the charger when the alternator is actually supplying power — so it never drains the starter battery at rest. Low-temperature shutdown protects lithium batteries from charging below safe temperatures, and a configurable input undervoltage lockout stops the charger before it can deep-discharge the source battery.

New: emergency reverse charge (firmware v1.15)

With firmware v1.15, every Orion XS can run an emergency reverse charge : from the VictronConnect status screen, it charges your starter battery from the house bank for 15 minutes — enough to top it up and start the engine. No jumper cables, no booster pack. Update the firmware in VictronConnect under Product Info, then look for the engine icon on the status screen.