$20.00
We will hold your cart for 15:00.
The Victron Energy MultiPlus-II 12/3000/120 pure sine wave inverter charger delivers 3000VA of 120V power with a 120A battery charger and PowerAssist anti-overload technology, on sale for $100.00 (save 90% off $1,006.24) with coupon OUTPOST12 for online purchase at PowerHaven Outpost.
Size
Categories : Inverters
SKU : POW-INV-084
Share This:
Victron Energy MultiPlus-II 12/3000/120 Power Inverter Charger combines a 3000VA pure sine wave inverter and a 120A battery charger in one 12V unit, with PowerAssist technology that prevents overloading limited AC sources like generators or shore power. Best fit: professional marine, yachting, RV, and off-grid land installations. Current price: $100.00 — a 90% discount off $1,006.24. Buy online at PowerHaven Outpost with coupon OUTPOST12 for an extra 12% off.
When grid, shore, or generator power fails, the MultiPlus-II takes over connected loads within 20 milliseconds — fast enough that computers and electronics never notice the transfer.
PowerAssist boosts shore or generator capacity: when demand exceeds the AC source limit, the inverter supplements it from the battery, preventing breaker trips while allowing heavy loads like air conditioning or cooktops.
Connect up to six MultiPlus-II units in parallel for higher output, or configure three units for three-phase power as your system grows.
Some owners notice fan or PWM-related noise on certain firmware versions. Updating to the latest firmware via VictronConnect or VEConfigure typically resolves rattling or knock noises; ensure clear ventilation around the unit so the temperature-controlled fan cycles normally.
The MultiPlus-II adds PowerAssist and a built-in 120A charger versus basic pure sine inverters; compared to the original MultiPlus, the II series offers a more compact all-in-one form factor with dual AC inputs.
At $100.00 (compare-at $1,006.24, 90% off) plus coupon OUTPOST12, this is an exceptional deal on a professional inverter charger. Orders over $45.00 ship free; standard shipping $8.00.
PowerAssist prevents generator or shore power overload by blending battery power with AC input
20ms transfer delivers UPS-grade uninterrupted power for off-grid and marine systems at a 90% discount
Scalable up to 6 units in parallel or 3-phase — on sale for $100.00 (was $1,006.24) with coupon OUTPOST12
Best For: Marine, yacht, RV, off-grid land systems
AC Output: 120V pure sine wave
PowerAssist: Yes
Scalability: Up to 6 parallel; 3-phase with 3 units
Product Type: Pure sine wave inverter charger
Transfer Time: <20ms
Model / Series: MultiPlus-II 12/3000/120
Battery Charger: 120A
Continuous Power: 3000VA / 12V DC
Seller: PowerHaven Outpost
An inverter, 120A charger, and UPS-grade transfer switch in one — $100.00 (90% off) plus 12% off with coupon OUTPOST12.
Ideal as the heart of an off-grid system with generator backup, a marine house-power solution, or an RV inverter installation with heavy AC loads.
The II series adds dual AC inputs and a more compact all-in-one enclosure; both offer pure sine output and seamless transfer.
A 90% discount on a professional-grade inverter charger won't last — order at PowerHaven Outpost with free shipping over $45.00.
Buy it at PowerHaven Outpost for $100.00 — a 90% discount off the $1,006.24 compare-at price.
It blends inverter/battery power with the limited AC source so total available power exceeds the source alone, preventing breaker trips on generators or shore connections.
Update to the latest firmware via VictronConnect or VEConfigure — older versions can cause PWM knock or fan rattling — and confirm the unit has clear ventilation so the fan cycles properly.
Yes, up to six units can run in parallel for higher output, or three units can be configured for three-phase AC.
Yes — the $100.00 sale price is already 90% off, and coupon OUTPOST12 takes another 12% off at checkout. Orders over $45.00 ship free.
PowerAssist is the killer feature. When my well pump kicks on and spikes past inverter capacity, it blends grid power seamlessly instead of tripping. Pure sine output runs my fridge, washer, and electronics without a hint of noise. The 120A charger refills my bank fast when on shore power. This thing is the gold standard.
Installed in my sprinter van conversion and it has been flawless for a year. Microwaves, induction cooktop, air conditioner bursts, all handled. Victron ecosystem makes monitoring everything simple.
Performance is outstanding and the transfer switch is fast enough that my computers never blink. It is heavy and requires serious cabling and fusing, so budget for a proper install. Configuration via VictronConnect took some patience but offers deep customization. Very happy overall.
Once configured it performs beautifully and the pure sine power is clean. The setup process and settings options can overwhelm a first-timer like me though. Recommend watching some install videos before diving in.
