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NCC Trained · Victron Dealer
Rayne Automotive
£368.64 (options vary)
Available to order
Delivery
Dispatched every Monday and Thursday with next-day delivery
Every option below is priced live from the shop. Choose on this page or in the panel above.
| Option | Price |
|---|---|
| Inverter Only | £368.64 |
| With Leads | £448.62 |
| With Mains Kit | £451.39 |
| Full Kit (Leads + Mains) | £531.37 |
Gives your campervan serious 240V power and shore-power charging in one unit. The MultiPlus 800Va delivers 650W of continuous pure sine wave — it runs a small TV, laptop chargers, lights and a small air fryer on low. When you plug into hook-up, it switches roles and charges your battery at 20A.
The changeover is seamless. Shore power present: it charges your battery and passes mains through to your sockets. Shore power gone: it inverts from your battery to the same sockets. Automatic, instant, and silent — you never think about which source you're on.
The kit includes the DC battery leads and isolator, plus the mains wiring kit with the IP67 inlet and pre-wired consumer unit. Matched, specified, and ready to install — the complete 240V system for compact systems · small appliances.
The MultiPlus 800VA delivers 650W of continuous pure sine 240V power and provides 20A battery charging on hook-up. Here is what it can realistically run off-grid:
10-90W
Several devices together
10-50W
Mains LED strips or bulbs
50-150W
Typical campervan television
30-50W
Camping or desk fan
50-100W
Single size
500-650W
Only if its label is 650W or below
600-1000W
Most exceed the continuous limit
1200-2000W
Above the 650W continuous limit
Phone + laptop + TV + LED lighting: around 250W total — comfortable
Electric blanket + television + phone charging: around 220W total — comfortable
Wattages are typical values — check each appliance label. Keep the combined continuous load within 650W. A kettle or other heating appliance must be specifically rated at 650W or below.
Inverts up to 650W off-grid; charges at 20A on hook-up. One unit doing both jobs saves space, wiring, and cost versus separate devices.
Plug in at a campsite and it charges; unplug and it inverts. The transfer is automatic and in milliseconds — no switches to flip, no interruption to what's running.
Clean output that's safe for laptops, medical devices, and anything with a plug. No modified-sine damage risk.
The shore-to-inverter changeover happens through the Multiplus's internal neutral-grounding relay — a requirement under current regulations for inverter transfer switches. No external relay to buy or wire: changeover is safe and automatic.
Match the battery bank to the inverter's appetite
Charging whilst driving to feed the inverter
Off-grid charging to top up between drives
It runs a small TV, laptop chargers, lights and a small air fryer on low. Total draw must stay under 650W continuous — check appliance labels. Anything with a heating element is the big draw; LEDs and electronics barely register.
Inverting at full power draws roughly 54A from a 12V battery. Lithium banks handle this; small AGM banks sag. Match the inverter to your bank: bigger inverters want bigger batteries.
Yes — the MultiPlus range are inverter-chargers (they charge your battery from shore power). The Inverter Smart is inverter-only. Choose MultiPlus if you use campsites; Inverter Smart if you charge purely by solar and split charge.
Yes — an MPPT controller and panel run alongside the MultiPlus. Look at the Solar + Power Board kits, or the Full Off-Grid complete system if you want the whole package in one go.
Yes. Use the System Builder for a full specification, or book a consultation and tell us what you want to run and what is already fitted.
Yes. Van converters can apply for a Rayne Automotive trade account for kit pricing and support.
Yes. The Help Centre carries installation instructions, and the team supports what it sells.
Plan the charging, storage and distribution together with the System Builder, browse the example complete systems, or book a consultation and tell us what you want to run and what is already fitted.
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