The Victron MultiPlus-II 48/5000 120V is the better 48V inverter overall, rated 4.4 to 3.8. The Victron MultiPlus-II 48/5000 120V leads on value, warranty and idle draw. The Victron MultiPlus-II 48/5000 120V costs $718.68 less ($1,307.32 vs $2,026).
A strong 48 V inverter-charger for an off-grid home or whole-house backup on 120 V. It handles big loads, charges fast from a generator, and carries the certifications inspectors ask for.
Amazon Northern Arizona Wind & Sun $1,307.32For a 48 V RV, cabin or backup system that needs a rugged, listed 120 V inverter-charger with big surge.
ResSupply $2,026 A1 Solar Store $2,531.49Prices were last checked October 24, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Each factor is scored 0-100 against the same fixed reference points for every 120V inverter-chargers 48V inverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | Victron MultiPlus-II 48/5000 120V | Magnum MS4048-L |
|---|---|---|
| Overall rating | 4.4/5 | 3.8/5 |
| Value 30% | 73 $0.33 per continuous watt | 45 $0.51 per continuous watt |
| Idle draw 15% | 93 15 W idle with nothing plugged in | 79 25 W idle with nothing plugged in |
| Safety listing 15% | 100 LabTest certified to UL 1741 and CSA C22.2 No. 107.1 (LC22395-1) and to UL 458 (LC26-6384-1) | 100 ETL listed to UL/cUL 458 and CSA C22.2 No. 107.1-01; UL 1741 certificate (ATM) |
| Warranty 15% | 100 5-year warranty | 50 3-year warranty |
| Features 15% | 50 optional remote, app add-on, lithium charge profile, hardwire terminal | 50 optional remote, app add-on, lithium charge profile, hardwire terminal |
| Efficiency 10% | 100 96% peak efficiency (maker rating) | 100 94% peak efficiency (maker rating) |
| Victron MultiPlus-II 48/5000 120V | Magnum MS4048-L | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter-charger | Pure sine wave inverter-charger |
| AC output | 120 V | 120 V |
| Continuous power | 4,000 W | 4,000 W |
| Surge power | 9,000 W | 8,500 W for 5 s |
| DC input range | 38 to 66 V | 36 to 67.6 V |
| Idle draw | 15 W (0.3 A at 48 V) | 25 W (0.5 A at 48 V) |
| Power-saving draw | 3 W | 8 W |
| Peak efficiency | 96% | 94% |
| Connections | ||
| AC outlets | 0 | 0 |
| GFCI outlets | No | No |
| Hardwire terminal | Yes | Yes |
| USB ports | None | None |
| Transfer switch | Yes | Yes |
| Pass-through rating | 95 A | 30 A |
| Charger | 70 A | 60 A |
| Lithium charge profile | Yes | Yes |
| Parallel units | Yes | No |
| Control and build | ||
| Remote | Optional extra | Optional extra |
| App | Optional add-on | Optional add-on |
| Display | No | No |
| Safety listing | LabTest certified to UL 1741 and CSA C22.2 No. 107.1 (LC22395-1) and to UL 458 (LC26-6384-1) | ETL listed to UL/cUL 458 and CSA C22.2 No. 107.1-01; UL 1741 certificate (ATM) |
| Design | - | Low-frequency (transformer) |
| Cooling | fan | fan |
| Dimensions | 676 x 330 x 164 mm (26.6 x 13.0 x 6.5 in) | 13.75 x 12.65 x 8 in (349 x 321 x 203 mm) |
| Weight | 71 lb | 55 lb |
| Warranty | 5 years | 3 years |
