Victron MultiPlus-II 12/4k 2x120V
The biggest 12 V MultiPlus-II, for 50 A motorhomes with large lithium banks that want air conditioning off-grid. Confirm the listing your installer needs, since no UL certificate is published.
DRSA $1,190$1,190
The Victron MultiPlus-II 12/4k 2x120V is the better 12V inverter overall, rated 4.0 to 3.9. The Victron MultiPlus-II 12/4k 2x120V leads on warranty and efficiency. The Renogy 3000W HF Inverter Charger wins on features, value and idle draw. The Renogy 3000W HF Inverter Charger costs $590.01 less ($599.99 vs $1,190).
Renogy 3000W HF Inverter Charger
#11 in Inverter-chargersFull review
For RVs and home backup with a big 12 V lithium bank that want fast shore charging and seamless changeover. It undercuts the major brands while matching their headline features.
Amazon $599.99$599.99
Prices 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.
Which should you buy?
- Choose the Victron MultiPlus-II 12/4k 2x120V for warranty (5-year warranty vs 2-year warranty) and efficiency (93% peak efficiency (maker rating) vs 90% peak efficiency (maker rating)).
- Choose the Renogy 3000W HF Inverter Charger for features (remote included, app, lithium charge profile, display vs optional remote, app add-on, lithium charge profile, hardwire terminal), value ($0.20 per continuous watt vs $0.35 per continuous watt) and idle draw (1 A idle (about 12 W) with nothing plugged in vs 1.5 A idle (about 18 W) with nothing plugged in).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every inverter-chargers 12V inverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | Victron MultiPlus-II 12/4k 2x120V | Renogy 3000W HF Inverter Charger |
|---|---|---|
| Overall rating | 4.0/5 | 3.9/5 |
| Value 30% | 87 $0.35 per continuous watt | 100 $0.20 per continuous watt |
| Idle draw 15% | 73 1.5 A idle (about 18 W) with nothing plugged in | 93 1 A idle (about 12 W) with nothing plugged in |
| 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 | 25 2-year warranty |
| Features 15% | 65 optional remote, app add-on, lithium charge profile, hardwire terminal | 92 remote included, app, lithium charge profile, display |
| Efficiency 10% | 89 93% peak efficiency (maker rating) | 56 90% peak efficiency (maker rating) |
Specifications
| Victron MultiPlus-II 12/4k 2x120V | Renogy 3000W HF Inverter Charger | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter-charger | Pure sine wave inverter-charger |
| Continuous power | 3,400 W | 3,000 W |
| Surge power | 6,000 W for 2 s | 6,000 W for 100 ms |
| DC input range | 9.5 to 17 V | 10.5 to 16.5 V |
| Idle draw | 1.5 A (18 W) | 1 A (12 W) |
| Power-saving draw | 0.3 A | - |
| Peak efficiency | 93% | 90% |
| Connections | ||
| AC outlets | 0 | - |
| GFCI outlets | No | - |
| Hardwire terminal | Yes | - |
| USB ports | None | - |
| Transfer switch | Yes | Yes |
| Charger | 160 A | 100 A |
| Lithium charge profile | Yes | Yes |
| Parallel units | Yes | - |
| Control and build | ||
| Remote | Optional extra | Included |
| App | Optional add-on | Built in |
| Display | No | Yes |
| Safety listing | No | No |
| Cooling | fan | - |
| Dimensions | 650 x 275 x 165 mm (25.6 x 11 x 6.5 in) | 17.0 x 11.3 x 4.3 in |
| Weight | 55 lb | 16.3 lb |
| Warranty | 5 years | 2 years |