Description
xVictron Energy 100A Buck-Boost DC/DC Converter
The Victron Energy 100A Buck-Boost DC/DC Converter is a non-isolated DC-to-DC converter designed for professional mobile, marine and off-grid applications where a stable output voltage is required from a variable or mismatched input source. It is suited to dual-battery systems, vehicle-to-load charging, and any installation where the input and output voltages may be higher, lower or equal to one another.
Key Features
- 100A continuous output current, suitable for high-demand DC loads and battery charging applications.
- Buck-boost topology allows the output voltage to be set higher, lower or equal to the input voltage, unlike a simple buck or boost converter.
- Non-isolated design provides efficient power conversion with minimal heat loss compared to transformer-based alternatives.
- Compatible with Victron's VE.Direct communication interface for monitoring and configuration via GX devices or VictronConnect.
- Suitable for 12V and 24V system architectures, covering the most common mobile and off-grid voltage configurations.
- Compact and robust aluminium housing with a weight of 4.1 kg, appropriate for permanent installation in vehicles, vessels and fixed off-grid enclosures.
Product Overview
A standard DC-DC converter can only step voltage in one direction. A buck-boost converter removes that constraint: the output can be regulated to a fixed target regardless of whether the input is above or below it. This matters in real installations where input voltage fluctuates, for example when a starter battery drops under load or a lithium auxiliary battery sits at a higher resting voltage than a lead-acid bank.
At 100A, this unit is capable of handling substantial charging currents for auxiliary battery banks or supplying high-current DC loads directly. The non-isolated topology means the negative rails are shared between input and output, which is standard practice in most vehicle and marine wiring schemes. Installers should confirm this is compatible with the earthing arrangement of the specific installation before proceeding.
Integration with the Victron ecosystem is straightforward via VE.Direct. When connected to a GX device such as a Cerbo GX, the converter appears in the system overview and can be monitored alongside other Victron components. Configuration and firmware updates are handled through the VictronConnect app.
Specifications
- SKU: ORI303100000
- GTIN: 8719076046837
- Output current: 100A
- Converter type: Buck-Boost, non-isolated
- Weight: 4.1 kg
Applications
- Dual-battery charging in campervans, motorhomes and HGVs, where the auxiliary bank must be charged from the alternator without overcharging or undercharging.
- Marine installations requiring a regulated DC supply to a secondary battery bank from a main house bank at a different voltage.
- Off-grid cabins and mobile power systems where input voltage varies with state of charge and a stable output is required.
- Vehicle-mounted equipment requiring a fixed DC voltage independent of the chassis battery state.
- Renewable energy systems combining solar and alternator input sources with mixed battery chemistries at different nominal voltages.
What Is Included
- 1x Victron Energy 100A Buck-Boost DC/DC Converter (ORI303100000)
Installation Notes
Installation should be carried out by a qualified electrician or experienced system integrator familiar with DC power systems. The non-isolated design means input and output negative terminals are common; verify this is appropriate for the earthing scheme of the vessel or vehicle before wiring. For marine installations, follow applicable NMEA or flag-state wiring standards. Ensure adequate ventilation or heatsinking for the rated current. Fuse both input and output cables as close to the source as practicable and in accordance with the cable ratings used.
Return Policy
xWe offer a 14-day, no-quibble returns or replacement policy because we want you to be totally satisfied with your purchase.
If you are unhappy in any way with your purchase, you can return it for a refund or a replacement, as long as you return it in the same condition as it arrived (original/undamaged packaging and product) and within 30 days of receiving it. We will pay for your return postage on a faulty item as long as you send it using Royal Mail 2nd class recorded delivery (for EU or International Shipments, you have to use our UPS account, we will provide you with a return label)
Please keep in mind the following:
- Non-faulty items returned after 14 days and/or not in their original, undamaged packaging can only be exchanged for store credit - 15% off the items returned.
- Items returned within 14 days but not in their original and undamaged packaging will also incur a -15% charge per package.
- If you return an item that doesn't adhere to our returns procedure or doesn't include a returns form, you may be liable for a £10 administration fee
- Individual items from a bundle can't be returned, refunded or exchanged. If you want a refund/credit/exchange for a bundle, all items must be returned to us.
Before you return your item, please make sure that:
- You follow our returns process (outlined below)
- The goods and packaging are undamaged
IMPORTANT: We need to be able to identify an item with your order. We can only do this if you follow our returns process. Please do not send us items back that do not follow this process as they cannot be identified properly and will not be replaced or refunded.
What delivery method do I need to use when returning an item?
You must send the goods back to us via Royal Mail 2nd class recorded delivery. Refunds on faulty items returned are reimbursed within 5 working days.
Can I return just one item from multiple purchases?
Yes. Once you start the returns process you will go to a page that will allow you to choose which items you want to be replaced or refunded.
Returning faulty goods
If your item is faulty, you need to follow the returns policy, where you will be able to state that it’s faulty. The product will then arrive at our warehouse for testing.
If your purchase is not within 14 days
You can still exchange your item for a different product or for credit to use on the Voltacon Solar or Ledison-led-lights.co.uk websites (-15% from the credit amount).
Returns outside of the 14-day period do not qualify for the free returns policy.
Returning an item within the warranty
If you have a warranty and want to return a faulty item, you just need to follow our standard returns process. When we receive your item, we will then check that it’s within warranty and for any faults before arranging a replacement.