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Victron | MultiPlus 12/3000 | 12V Input | 3000VA Output 120V | 120A Charger | Transfer Switch Victron | MultiPlus 12/3000 | 12V Input | 3000VA Output 120V | 120A Charger | Transfer Switch $1,024.95
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Victron MultiPlus 12/2000 — True Sine Wave Inverter Charger with 80A Adaptive Charging

Inverter, Charger, and Transfer Switch in One Unit

True sine wave output — Clean power for sensitive electronics
80A adaptive charging — Charges efficiently based on battery type
Sub-20ms transfer speed — Uninterrupted power during grid failures
PowerAssist overload prevention — Boosts weak AC with battery power
Scale to six units — Split-phase or three-phase configurations
  • FREE System Design Consultation -- Our engineers size your system for your actual consumption
  • FREE Shipping -- Ships free on all orders including LTL freight
  • Compatibility Guarantee -- Components pre-vetted to work together

$756.95

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Victron | MultiPlus 12/2000 | 12V Input | 2000VA Output 120V | 80A Charger | Transfer Switch
Victron | MultiPlus 12/2000 | 12V Input | 2000VA Output 120V | 80A Charger | Transfer Switch
$756.95

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Victron | MultiPlus 12/2000 | 12V Input | 2000VA Output 120V | 80A Charger | Transfer Switch
Victron MultiPlus 12/2000 — True Sine Wave Inverter Charger with 80A Adaptive Charging
$756.95

Inverter, Charger, and Transfer Switch in One Unit

The Victron MultiPlus 12/2000 combines a true sine wave inverter, adaptive 80A charger, and automatic transfer switch into a single field-tested unit built for off-grid and backup power systems. Its PowerAssist technology prevents generator or shore source overload by automatically reducing charge current or supplementing with battery power. When the grid drops, the built-in UPS function takes over in under 20 milliseconds. Parallel-capable up to six units for split-phase or three-phase configurations, this grid-independent workhorse supports remote monitoring via phone, tablet, or PC across multiple operating systems.

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PowerAssist Overload Protection
Under 20ms UPS Transfer
Parallel Up to 6 Units
True Sine Wave Output
2000VA
Output Power at 120V
80A
Adaptive Charge Rate
<20ms
Grid Failure Transfer Time
Never Go Dark When the Grid Fails

Never Go Dark When the Grid Fails

Most grid-tied solar systems shut down the moment utility power drops — leaving you exactly where you started. The MultiPlus 12/2000 eliminates that vulnerability with built-in transfer switching that takes over in under 20 milliseconds. Your lights stay on, your refrigerator stays cold, and your well pump keeps running. At Off Grid Vault, we pre-vet every inverter for real off-grid proven performance — not bill reduction disguised as independence. This unit integrates with your battery bank and charge controller as a cohesive system, not a random component pulled from a marketplace listing.

PowerAssist Prevents Generator and Shore Overloads

PowerAssist Prevents Generator and Shore Overloads

When your AC source — generator, shore power, or weak grid connection — cannot handle the load, PowerAssist steps in automatically. It first reduces battery charging current to free up capacity, then supplements the AC source with battery power to prevent tripped breakers. This means you can run a well pump and microwave simultaneously on a generator that would normally stall under combined surge. The 2000VA continuous output handles real-world cabin and homestead loads without clipping or derating. Remote monitoring via phone, tablet, or laptop lets you see exactly what the system is doing in real time.

Build a Scalable Off-Grid Power Architecture

Build a Scalable Off-Grid Power Architecture

The MultiPlus 12/2000 is not a dead-end purchase. Parallel capability lets you connect up to six units for split-phase or three-phase configurations as your cabin or homestead grows. Start with one unit for a small cabin, then add units when you add a workshop, well pump, or guest quarters. The 80A adaptive charger works with multiple battery chemistries and adjusts charge profiles automatically — so when you upgrade your battery bank, the MultiPlus adapts without replacing the inverter. Free system design consultation from Off Grid Vault ensures this unit is correctly sized for your current and planned loads.

Compatibility Check

Verify your system meets these requirements before installing the MultiPlus 12/2000.

  • 12V DC battery bank is required for input voltage
  • 120V AC shore or generator source available for charging and pass-through
  • Battery bank capacity rated to safely accept 80A charge current

Where It Fits

Designed for installations where reliable inverter/charger integration is non-negotiable.

Cabin and Homestead Power
Whole-Home Backup Systems
RV and Mobile Installations

Full specifications

At a glance

Dimensions
See product page
Power
12V
Warranty
See product page
Compliance
See product page
Full specifications14 data points across 4 categories

Dimensions

DimensionsSee product page
WeightSee product page

Power & Performance

Input Voltage12V
Output Power2000VA
Output Voltage120V
Charger Current80A
Inverter TypeTrue sine wave
UPS Transfer TimeLess than 20 milliseconds
Parallel CapabilityUp to 6 units
Phase ConfigurationsSplit Phase or Three-Phase capable
MonitoringRemote monitoring and control via phone, tablet, laptop, or PC

Materials

ConstructionSee product page

Compliance & Warranty

WarrantySee product page
CertificationsSee product page

The Off Grid Vault Promise

What you get when you buy from us — no fine print.

Free ShippingEvery order ships free — including LTL freight on large systems. No minimums, no thresholds.
30-Day Performance GuaranteeIf it doesn't perform as specified, we make it right. Uninstalled returns accepted within 30 days in original packaging.
Free System Design ConsultationOur engineers size your system for your actual consumption — no guesswork, no incompatible components.
★★★★★
“I installed the MultiPlus 12/2000 in my 800 sq ft cabin in northern Arizona. Paired it with a LiFePO4 bank and four panels. The transfer switching is seamless — when the grid dropped last winter during a snowstorm, my heat and lights never blinked. PowerAssist is genuinely useful when I am running on generator backup. Victron's monitoring app lets me check everything from my phone. Off Grid Vault's team confirmed my wiring and battery compatibility before I pulled the trigger.”
F
First L.Flagstaff, AZ

Victron’s MultiPlus combines the technologies of an inverter and charger in one elegant package. Its many features include a true sine wave inverter, adaptive charging, hybrid PowerAssist technology, plus multiple system integration features.

Features
Unique PowerAssist – Prevents overload of a limited AC source.
First, battery charging automatically reduces.
Second, shore side supply will be boosted with power taken from the battery.
UPS Function
Automatically takes over in the event of a grid failure in less than 20milliseconds.
Parallel up to 6 units
Split Phase or Three-Phase capable.
Remote Monitoring and Control
Access can be from a phone, tablet, laptop, or PC for multiple operating systems.

Victron | MultiPlus 12/2000 | 12V Input | 2000VA Output 120V | 80A Charger | Transfer Switch Specifications 

Freight Shipping

For in stock products, standard processing times are 2 – 5 business days. Estimated delivery times are based on carrier availability and national shipping lanes, these can vary anywhere between 3 – 15 business days.

Parcel Shipping

Estimated shipping times on single item, in-stock orders are 2 – 4 business days depending on position in the order queue. Actual delivery dates vary based on carrier.

Victron | MultiPlus 12/2000 | 12V Input | 2000VA Output 120V | 80A Charger | Transfer Switch Manual 

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Frequently Asked Questions

When you factor in the cost of a standalone true sine wave inverter, an 80A battery charger, and an automatic transfer switch purchased separately, you typically spend more than the MultiPlus price — and still have three separate devices to wire, mount, and troubleshoot. The MultiPlus integrates all three functions into one off-grid proven unit with Victron's remote monitoring built in. For a 12V system running a cabin or backup setup, this is the efficient path. Finance with Affirm and pay as low as $63/month.
Yes. Off Grid Vault is an authorized dealer for Victron Energy. That means your MultiPlus 12/2000 carries the full manufacturer warranty, and any warranty claims go through us directly — not through a support ticket queue with no accountability. We stock Victron because their build quality and system integration capabilities meet our standards for field-tested off-grid equipment. When you buy from an authorized dealer, you also get access to Victron's firmware updates, documentation, and technical resources.
The MultiPlus 12/2000 is designed for 12V systems and includes adaptive charging that adjusts charge profiles based on battery type — including LiFePO4. However, compatibility depends on your specific battery BMS communication protocol and your overall system architecture. That is exactly why Off Grid Vault offers a free system design consultation. Tell us your battery bank specs, your daily kWh consumption, and your loads, and our engineers will confirm whether this unit is the right fit or recommend the correct configuration.
We ship free on all orders, including this MultiPlus. Lead times vary based on current Victron inventory levels. Contact us before ordering and we will give you an honest, real-time shipping estimate — no fabricated countdowns or fake stock claims. If you need this unit for an upcoming build or backup project, let us know your timeline and we will confirm whether we can meet it.
Warranty terms are set by Victron Energy and vary by region and product revision. As an authorized dealer, Off Grid Vault handles warranty claims directly on your behalf — you deal with us, not a faceless ticket system. Victron has a long-standing reputation for build quality in the off-grid and marine communities, and the MultiPlus series has been field-tested across thousands of installations worldwide. For exact warranty duration and coverage details, refer to the Victron datasheet or contact us and we will provide the specific terms for your unit.
2000VA continuous output can run a refrigerator, lights, small well pump, and electronics simultaneously. However, whether it fits your cabin depends on your actual load profile, not a guess. If you plan to run heavy loads like a full-size well pump, air conditioner, or microwave at the same time, you may need a larger unit or a parallel configuration. Use our free system design consultation — tell us your loads and daily kWh consumption, and we will size it correctly.
SKU: 1593036 Category: Brand:

The Off Grid Vault Promise

What you get when you buy from us — no fine print.

Free Shipping Every order ships free — including LTL freight on large systems. No minimums, no thresholds.
30-Day Performance Guarantee If it doesn't perform as specified, we make it right. Uninstalled returns accepted within 30 days in original packaging.
Free System Design Consultation Our engineers size your system for your actual consumption — no guesswork, no incompatible components.

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About victron MultiPlus

victron is a trusted manufacturer of premium multiplus. OffGridVault is an authorized dealer offering the full victron lineup with free delivery, price match guarantee, and expert support.

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