Victron MultiPlus-II 12/4k 120V
For big 12 V lithium builds that want to run an air conditioner without moving to 24 or 48 V. Check that your inspector accepts it before buying, since no UL certificate is published.
DRSA $1,105$1,105
The Victron MultiPlus-II 12/4k 120V rates 4.0 among inverter-chargers 12V inverters; the Renogy PUH 3000W with Transfer Switch rates 4.0 among over 2,000 W ones. The Renogy PUH 3000W with Transfer Switch costs $643.03 less ($461.97 vs $1,105).
Renogy PUH 3000W with Transfer Switch
#2 in Over 2,000 WFull review
A big inverter with automatic changeover for RVs and home backup that already have a separate charger. Renogy’s HF inverter-chargers add charging for more money.
Amazon $461.97$461.97
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.
Scores side by side
These two sit in different size classes (inverter-chargers and over 2,000 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 MultiPlus-II 12/4k 120V | Renogy PUH 3000W with Transfer Switch |
|---|---|---|
| Overall rating | 4.0/5 | 4.0/5 |
| Value 30% | 90 $0.33 per continuous watt | 77 $0.15 per continuous watt |
| Idle draw 15% | 73 1.5 A idle (about 18 W) with nothing plugged in | 67 1.5 A idle (about 18 W) with nothing plugged in |
| Safety listing 15% | 0 no UL 458 or UL 1741 listing stated | 100 UL certified to UL 458 and CSA C22.2 No. 107.1-01 |
| Warranty 15% | 100 5-year warranty | 0 1-year warranty |
| Features 15% | 65 optional remote, app add-on, lithium charge profile, hardwire terminal | 95 remote included, app, transfer switch, hardwire terminal |
| Efficiency 10% | 89 93% peak efficiency (maker rating) | 78 92% peak efficiency (maker rating) |
Specifications
| Victron MultiPlus-II 12/4k 120V | Renogy PUH 3000W with Transfer Switch | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter-charger | Pure sine wave inverter |
| Continuous power | 3,400 W | 3,000 W |
| Surge power | 6,000 W for 2 s | 6,000 W for 2 s |
| DC input range | 9.5 to 17 V | 11 to 15.5 V |
| Idle draw | 1.5 A (18 W) | 1.5 A (18 W) |
| Power-saving draw | 0.3 A | - |
| Peak efficiency | 93% | 92% |
| Connections | ||
| AC outlets | 0 | 3 |
| GFCI outlets | No | Yes |
| Hardwire terminal | Yes | Yes |
| USB ports | None | 1 |
| Transfer switch | Yes | Yes |
| Charger | 160 A | - |
| Lithium charge profile | Yes | - |
| Parallel units | Yes | No |
| Control and build | ||
| Remote | Optional extra | Included |
| App | Optional add-on | Built in |
| Display | No | - |
| Safety listing | No | UL certified to UL 458 and CSA C22.2 No. 107.1-01 |
| Cooling | fan | fan |
| Dimensions | 631 x 277 x 164 mm (24.8 x 10.9 x 6.5 in) | 19.2 x 10.4 x 3.8 in |
| Weight | 49 lb | 14.8 lb |
| Warranty | 5 years | 1 year |