For a large off-grid home or estate system on 48 V that needs huge 120 V output and fast generator charging. Pair two for 120/240 V split phase.
Amazon $2,766.75 Backwoods Solar $2,609.50The Victron Quattro 48/10000 120V rates 3.6 among 120V inverter-chargers 48V inverters; the WZRELB 8000W 48V Split Phase (SPWR) rates 3.1 among over 1,500 W ones. The WZRELB 8000W 48V Split Phase (SPWR) costs $1,041.22 less ($1,568.28 vs $2,609.50).

A big high-frequency split-phase inverter for off-grid homes on a budget. At this price, listed low-frequency units with real spec sheets are worth a look first.
Amazon $1,568.28Prices 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.
Scores side by side
These two sit in different size classes (120V inverter-chargers and over 1,500 W), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | Victron Quattro 48/10000 120V | WZRELB 8000W 48V Split Phase (SPWR) |
|---|---|---|
| Overall rating | 3.6/5 | 3.1/5 |
| Value 30% | 73 $0.33 per continuous watt | 69 $0.20 per continuous watt |
| Idle draw 15% | 29 60 W idle with nothing plugged in | 50 idle draw not published (neutral score used) |
| Safety listing 15% | 0 no UL 458 or UL 1741 listing stated | 0 no UL 458 or UL 1741 listing stated |
| Warranty 15% | 100 5-year warranty | 0 1-year warranty |
| Features 15% | 50 optional remote, app add-on, lithium charge profile, hardwire terminal | 60 remote included, 120/240 V split-phase, hardwire terminal, display; no app |
| Efficiency 10% | 100 96% peak efficiency (maker rating) | 73 91.6% peak efficiency (maker rating) |
Specifications
| Victron Quattro 48/10000 120V | WZRELB 8000W 48V Split Phase (SPWR) | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter-charger | Pure sine wave inverter |
| AC output | 120 V | 120/240 V split-phase |
| Continuous power | 8,000 W | 8,000 W |
| Surge power | 20,000 W | 16,000 W |
| DC input range | 38 to 66 V | - |
| Idle draw | 60 W (1.2 A at 48 V) | - |
| Power-saving draw | 15 W | - |
| Peak efficiency | 96% | 91.6% |
| Connections | ||
| AC outlets | 0 | 4 |
| GFCI outlets | No | - |
| Hardwire terminal | Yes | Yes |
| USB ports | None | - |
| Transfer switch | Yes | No |
| Pass-through rating | 100 A | - |
| Charger | 140 A | - |
| Lithium charge profile | Yes | - |
| Parallel units | Yes | No |
| Control and build | ||
| Remote | Optional extra | Included |
| App | Optional add-on | No |
| Display | No | Yes |
| Safety listing | No | No |
| Design | - | High-frequency |
| Cooling | fan | fan |
| Dimensions | 572 x 488 x 344 mm (22.6 x 19.2 x 13.6 in) | 23 x 12 x 6.2 in |
| Weight | 128 lb | 37 lb |
| Warranty | 5 years | 1 year |