The Victron Quattro 48/5000 120V is the better 48V inverter overall, rated 3.6 to 3.2. The Victron Quattro 48/5000 120V leads on value, warranty and efficiency. The Xantrex Freedom EX 4000 wins on safety listing. The Victron Quattro 48/5000 120V costs $1,168.85 less ($1,638.85 vs $2,807.70).
For an off-grid home or large boat that switches between grid and generator and needs big motor-starting power. The MultiPlus-II 48/5000 idles lower and has published UL certificates if one AC input is enough.
Amazon $1,785 Backwoods Solar $1,638.85For a 48 V RV, bus or boat that wants inverter, charger, transfer switch and 12 V converter in one box. It replaces several components, but idles high and carries a short warranty.
Amazon $2,807.70Prices 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 Quattro 48/5000 120V | Xantrex Freedom EX 4000 |
|---|---|---|
| Overall rating | 3.6/5 | 3.2/5 |
| Value 30% | 60 $0.41 per continuous watt | 15 $0.70 per continuous watt |
| Idle draw 15% | 64 35 W idle with nothing plugged in | 71 30 W idle with nothing plugged in |
| Safety listing 15% | 0 no UL 458 or UL 1741 listing stated | 100 CSA certified to CSA 107.1, UL 458 and UL 458 Marine Supplement |
| Warranty 15% | 100 5-year warranty | 25 2-year warranty |
| Features 15% | 50 optional remote, app add-on, lithium charge profile, hardwire terminal | 45 optional remote, lithium charge profile, hardwire terminal; no app |
| Efficiency 10% | 100 95% peak efficiency (maker rating) | 67 91% peak efficiency (maker rating) |
| Victron Quattro 48/5000 120V | Xantrex Freedom EX 4000 | |
|---|---|---|
| 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 | 10,000 W | 8,000 W for 5 s |
| DC input range | 38 to 66 V | 40 to 64 V |
| Idle draw | 35 W (0.7 A at 48 V) | 30 W (0.6 A at 48 V) |
| Power-saving draw | 15 W | - |
| Peak efficiency | 95% | 91% |
| Connections | ||
| AC outlets | 0 | 0 |
| GFCI outlets | No | No |
| Hardwire terminal | Yes | Yes |
| USB ports | None | None |
| Transfer switch | Yes | Yes |
| Pass-through rating | 100 A | 50 A |
| Charger | 70 A | 80 A |
| Lithium charge profile | Yes | Yes |
| Parallel units | Yes | Yes |
| Control and build | ||
| Remote | Optional extra | Optional extra |
| App | Optional add-on | No |
| Display | No | - |
| Safety listing | No | CSA certified to CSA 107.1, UL 458 and UL 458 Marine Supplement |
| Cooling | fan | load-controlled fan |
| Dimensions | 444 x 328 x 240 mm (17.5 x 13.0 x 9.6 in) | 17.1 x 14 x 8.1 in (434 x 354 x 205 mm) |
| Weight | 66 lb | 79.4 lb |
| Warranty | 5 years | 2 years |
