Best Inverters for a Van or RV Build (2026)
Picking the right inverter means matching it to your actual loads — not just buying the biggest one. Here are the best pure sine inverters for US van and RV builds in 2026, organized by use case.
Size your inverter to your loads
Tell us your 120V appliances and we'll size the inverter and its cabling — free.
Light use: laptop & phone charging — Victron Phoenix 12/800
For builds that only need AC power occasionally — charging a laptop, running a small fan or projector — the Victron Phoenix 12/800 (~$250) is efficient, has very low standby draw, and is small enough to mount almost anywhere. Pure sine output is safe for sensitive electronics.
Good for: builds where most charging happens over 12V/USB and the inverter is a backup, not a primary system.
Mid-range: microwave or blender — Renogy 1000W Pure Sine
The Renogy 1000W pure sine inverter (~$150) handles a microwave (~1,000W draw, often spikes higher on startup), blender, or small power tools. It's the most popular mid-range choice for US builds because of the price-to-capability ratio.
Good for: builds with one occasional higher-draw appliance, on a budget.
Check startup surge, not just running watts
Microwaves, compressors, and motors draw a brief surge well above their rated wattage on startup — often 2x. Make sure your inverter's surge rating covers it, even if the running wattage fits a smaller unit.
Full system: inverter + shore power — Victron MultiPlus 12/2000
If you want an induction cooktop, run multiple AC appliances, or plan to use campground shore power, the Victron MultiPlus 12/2000 (~$900) is an inverter and a shore-power charger in one unit, with automatic transfer switching. It's more expensive but eliminates the need for a separate converter/charger — see the charging systems guide for how it fits the whole system.
Good for: full-time builds, induction cooking, or anyone who wants one box instead of two.
Sizing rule of thumb
Size about 25% above your largest simultaneous load, and remember the battery-side current: a 2,000W inverter at full load pulls roughly 190A from a 12V battery, which demands 2/0 AWG cable and a Class T fuse. Full sizing math and wiring is in the inverters & 120V power guide and wiring & safety guide.