Description
xVictron MultiPlus 12/500/20-16 230V VE.Bus Inverter Charger
The Victron MultiPlus 12/500/20-16 is a combined inverter and battery charger in a single compact unit, designed for 12V DC systems with 230V AC output. It is suited to off-grid installations, marine and vehicle applications, and small backup power systems where space and weight are at a premium.
Key Features
- 500VA inverter output at 230V AC from a 12V DC battery bank, with a continuous power rating suitable for small loads and essential circuits.
- 20A battery charger built in, with adaptive charge technology that adjusts the charge curve based on battery behaviour over time.
- 16A AC transfer switch allows connection to shore power or a generator, automatically switching between mains input and inverter output.
- VE.Bus communication interface enables system integration, remote monitoring and configuration via Victron GX devices and VEConfigure software.
- PowerControl function limits the load on a generator or shore supply by reducing charge current when AC loads are high, preventing overload.
- PowerAssist function supplements the AC input with inverter power during peak demand, allowing use of a smaller generator or limited shore supply.
- Supports lithium-ion and lead-acid battery chemistries, with configurable charge parameters to suit different battery types.
Product Overview
The MultiPlus 12/500/20-16 combines a sine wave inverter, a multi-stage battery charger and an automatic transfer switch into one unit. When AC input is available (shore power or generator), the unit charges the battery bank and passes power through to connected loads. When AC input is lost or disconnected, it switches to inverter mode in under 20 milliseconds, which is fast enough to keep most sensitive equipment running without interruption.
The 20A charger uses Victron's adaptive charge algorithm, which builds a profile of the battery over its first charge cycles and adjusts accordingly. This is particularly useful in installations where battery condition or history is unknown. The PowerControl and PowerAssist features are relevant where the available AC supply is limited, for example on a small generator or a marina berth with a restricted amperage allowance. Rather than tripping the supply, the unit reduces or supplements current draw automatically.
VE.Bus connectivity means the MultiPlus 12/500/20-16 can be configured remotely and integrated into a wider Victron system including MPPT solar charge controllers, GX monitoring devices and the VRM online portal. For standalone use, it can also be configured directly via the VEConfigure software over a VE.Bus to USB interface.
Technical Specifications
| Parameter | Value |
| SKU | PMP121500000 |
| DC Input Voltage (Nominal) | 12V |
| Inverter Output Power | 500VA |
| AC Output Voltage | 230V AC |
| Battery Charger Output | 20A |
| AC Transfer Switch | 16A |
| Communication Interface | VE.Bus |
| Weight | 5.5 kg |
| GTIN | 8719076046363 |
Applications
- Off-grid cabins and small remote installations with a 12V battery bank and limited AC load requirements.
- Marine vessels requiring shore power integration and battery charging with automatic switchover.
- Campervans, motorhomes and vehicle conversions where 230V AC output from a 12V system is needed.
- Small UPS (uninterruptible power supply) applications for sensitive equipment in commercial or residential settings.
- Backup power systems paired with solar charge controllers and a GX monitoring device.
What Is Included
- 1 x Victron MultiPlus 12/500/20-16 230V VE.Bus inverter charger unit
Installation Notes
Installation should be carried out by a qualified electrician or accredited installer familiar with DC battery systems and 230V AC wiring. The unit must be connected to an appropriately rated 12V battery bank with correctly sized DC cabling and fusing. For any grid-connected or shore-power applications, wiring must comply with current UK wiring regulations (BS 7671). VE.Bus configuration requires Victron's VEConfigure software and a compatible interface cable. Lithium battery installations may require additional BMS integration and charge parameter configuration before commissioning.
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:
- 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.