Victron Orion XS 12/12-70A 1000W Bluetooth DC-DC Battery Charger

Victron Orion XS 12/12-70A 1000W: high-current booster for auxiliary batteries

The Victron Orion XS 70A is a 12 V to 12 V DC-DC charger for recharging an auxiliary battery from the alternator. It delivers adjustable charging up to 70 A and approximately 1,000 W at 14.3 V, with Bluetooth and VE.Direct. It suits campervan, motorhome and work-vehicle installations that need higher charging current and have an adequate power source.

Orion XS 70A: service-battery charging for campervans and work vehicles

The Orion XS 12/12-70A is a Victron 70 A booster that uses a 12 V supply to recharge the auxiliary battery while travelling. If you are looking for an Orion XS 70 or a Victron 70 A DC-DC charger, this is the 12 → 12 V version, not the XS50 or the multivoltage XS1400.

It is useful for service systems that accept higher charging current, including campervans, motorhomes and work vehicles with compatible LiFePO4 or lead-acid batteries. Before using 70 A, check the battery and BMS limits, alternator reserve and wiring. Marine applications require a suitable dry indoor location.

An important difference: IP20 and active cooling

This model has two fans on its bottom plate. The complete unit is rated IP20 and intended for a dry interior. The power electronics have their own IP65 enclosure, but that does not make the complete charger IP65. On a boat, choose a suitable dry location and compatible installation.

Technical data for choosing your charger

When to choose 70 A

Choose this booster if the battery accepts that current and the alternator can supply it without compromising the vehicle's other loads. If the battery BMS permits less charging current, set a lower limit. A high-capacity battery does not automatically accept 70 A.

The charger controls LiFePO4 and lead-acid charging with the correct profile. Charging stages include bulk, absorption, float and storage, with settings adapted to the battery. Engine detection can be adjusted for smart alternators; some Euro 6 vehicles may need an external signal.

Local and remote monitoring

VictronConnect lets you set limits and check charging from a compatible phone. VE.Smart receives external sensor data but does not synchronise several Orion chargers. Internet access requires a compatible GX, VE.Direct connection and VRM. DVCC requires a compatible system and BMS, Orion XS v1.03 and Venus OS v3.20 or later.

Check VictronConnect compatibility with your phone or computer and the required interface. Add a compatible battery monitor for a complete state-of-charge reading: the charger does not replace that function.

Emergency reverse charging

The current manual allows temporary charging of the starter battery from the auxiliary battery, up to 35 A, subject to limits and conditions. It requires Orion XS v1.15 and VictronConnect v6.43 or later. Activated in the app, it does not replace a jump starter or restore a faulty battery.

Installation details that matter

Keep the fans' air inlet unobstructed. The manual requires a non-flammable surface, flat mounting and 10 cm clearance around the unit for cooling; different orientations are permitted. The manufacturer's guidance table specifies an external 80–100 A fuse and 25 mm² cable for the stated length. The installer must check cable size, protection and routing for the actual system.

The XS70 terminals use TORK-KRIMP technology for ferrules fitted according to the manual's specific procedure. Do not apply this method automatically to other models. Lithium low-temperature protection requires battery-temperature data or the appropriate BMS control.

Frequently asked questions

Is the XS70 IP65? No. The complete unit is IP20. Choose a dry indoor location.

Is it silent and fanless? It has two fans; cooling is active, not exclusively passive.

Does it replace the XS50 in any installation? Not automatically. Available current, ventilation, environmental protection and wiring requirements differ.

Does it include a solar controller or BMS? No. Those are separate functions requiring their own equipment where needed.

Can units operate in parallel? Yes, with suitable design and protection; this does not mean synchronised charging through VE.Smart.

Compare before buying

If IP65 and fanless operation are priorities, compare the Orion XS 50A. For different nominal voltages in 12/24 V systems, see the Orion XS 1400. Complete your system with LiFePO4 batteries, battery monitors and Victron Energy equipment. Read the official XS70 manual.

Documentation: official datasheet PDF, automotive R10-7 EMC certificate in the manufacturer's download centre. EMC approval does not replace electrical and installation compatibility checks.

Orion XS or Orion-Tr Smart: compare before buying

Orion XS chargers do not provide galvanic isolation. Choose according to voltage, permitted charging current, installation environment and electrical design, not just the type of vehicle.

Complete your purchase with the right system

Explore the Victron Energy range, DC/DC converters and booster chargers and our battery chargers and power supplies. For the service battery bank, see LiFePO4 batteries and battery monitors. Choose the model and installation accessories according to the conditions in the official manual.