Victron Energy
Victron MultiPlus-II 48/5000 120V Inverter/Charger — High-Output 48V Residential ESS
Victron MultiPlus-II 48/5000 120V Inverter/Charger — High-Output 48V Residential ESS
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The Victron MultiPlus-II 48/5000 is the high-output single-unit 48V residential ESS inverter/charger — 5000VA of pure sine inverter output (4000W continuous), large multi-stage battery charger, 50A AC transfer switch, ESS-capable. The right choice when you want one unit instead of paralleling smaller MultiPlus-II 48/3000 units, or when you need substantial continuous AC capability for a single home or business.
48/5000 vs 2× 48/3000 parallel — which one?
| Single 48/5000 (this model) | 2× 48/3000 parallel | |
|---|---|---|
| Continuous AC output | 4000W | 4800W |
| Peak AC output | 9000W | 12,000W |
| Redundancy | Single point of failure | One unit can fail and system still runs at 2400W |
| Wall space | Single unit, larger | Two units side-by-side |
| Wiring complexity | Simpler | More wiring + sync cable |
| Price | $1458.00 | 2× $937.55 = $1875 |
Choose 48/5000 if: you want simpler wiring, you don't need redundancy, and you have a single mechanical room location.
Choose 2× parallel if: redundancy matters (commercial backup, remote off-grid), you want headroom for future expansion to 3× = 7200W.
What 5000VA powers
- Whole-home essentials backup: AC + fridge + freezer + lighting + electronics simultaneously
- Mid-size home AC unit (single-zone heat pump or window unit)
- Kitchen run (microwave + coffee maker + toaster + fridge)
- Power tool shop (table saw + dust collector + air compressor on intermittent)
- EV charger backup at low amperage (~12-16A Level 2)
- Full small business operation during outages
- Off-grid "normal-life" home with mid-size loads
Why the MultiPlus-II 48/5000
- 5000VA / 4000W pure sine inverter — high single-unit capacity
- Multi-stage charger — fast charging from grid or generator
- 50A AC transfer switch — supports 50A grid or generator input
- PowerControl + PowerAssist — boost limited grid for peak loads (AC startup, etc.)
- ESS-capable — self-consumption mode, peak shaving, time-of-use rate optimization
- VE.Bus networking — parallel or 3-phase capable for even larger systems
- CAN-bus battery communication — native support for Pylontech, BYD, BattleBorn 48V, Discover, EG4 ESS, and other commercial 48V lithium banks
- Built-in current sensor — enables advanced ESS without external CT
Specifications
| Nominal DC input voltage | 48V (operating range 38–66V) |
|---|---|
| Continuous AC output | 4000W (5000VA) |
| Peak AC output | 9000W (short duration) |
| AC output waveform | Pure sine wave |
| AC output voltage | 120V single-phase ± 2%, 60Hz ± 0.1% |
| AC transfer switch | 50A |
| ESS (grid-tie) capable | Yes |
| Networking | VE.Bus (parallel and 3-phase capable) |
| Battery chemistry | AGM, Gel, Flooded, LiFePO4, plus CAN-bus comms |
| Cooling | Variable-speed temperature-controlled fan |
| Operating temperature | -40°C to +65°C (full power up to 40°C) |
| Manufacturer SKU | PMP482505100 (verify with distributor) |
| Warranty | 5 years (manufacturer) |
Recommended applications
- Whole-home off-grid — standalone home with substantial AC needs
- Whole-home backup — grid-tied with battery backup for outages including AC
- Grid-tied ESS — time-of-use rate optimization, self-consumption, peak shaving
- Small commercial backup — retail, professional office, small server room
- Telecom large remote sites — 48V industry standard with substantial AC equipment
- Off-grid farm / agricultural operation — well pump, refrigeration, workshop tools
Every Jonsson Tech order ships within 5 days nationwide from our Houston, Texas warehouse. Free pre-purchase system design consultation — for residential ESS installs we recommend a full design review covering battery specs, expected loads, solar integration, and grid configuration. Send us your details to support@jonssontech.net or call 346-574-9652.
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