A small 48 V online inverter for cabins and backup circuits where zero transfer time matters more than solar headroom.
MPP Solar US store $619The MPP Solar 3048LV-MK is the better hybrid solar inverter overall, rated 2.8 to 2.7. The MPP Solar 3048LV-MK leads on value and solar input. The Rich Solar NOVA MAX 3K wins on warranty and features. The MPP Solar 3048LV-MK costs $180.99 less ($619 vs $799.99).
For RV and van owners on a 24 V battery who want a US-supported all-in-one. Cheaper 24 V units take more solar for less money.
Amazon Rich Solar $799.99Prices were last checked October 23, 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 MPP Solar 3048LV-MK for value ($206 per kW of continuous output vs $267 per kW of continuous output) and solar input (4,000 W of panels, 145 V max, 1 MPPT vs 3,000 W of panels, 250 V max, 1 MPPT).
- Choose the Rich Solar NOVA MAX 3K for warranty (3-year warranty vs 1-year warranty) and features (Wi-Fi app, parallel stacking, battery communication; not UL 1741 listed vs Wi-Fi add-on, parallel stacking; not UL 1741 listed).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 120 V hybrid solar inverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | MPP Solar 3048LV-MK | Rich Solar NOVA MAX 3K |
|---|---|---|
| Overall rating | 2.8/5 | 2.7/5 |
| Value 30% | 65 $206 per kW of continuous output | 44 $267 per kW of continuous output |
| Solar input 20% | 27 4,000 W of panels, 145 V max, 1 MPPT | 17 3,000 W of panels, 250 V max, 1 MPPT |
| Efficiency 20% | 40 91% peak efficiency, 40 W idle | 32 91% peak efficiency |
| Features 15% | 30 Wi-Fi add-on, parallel stacking; not UL 1741 listed | 50 Wi-Fi app, parallel stacking, battery communication; not UL 1741 listed |
| Warranty 15% | 0 1-year warranty | 22 3-year warranty |
Specifications
| MPP Solar 3048LV-MK | Rich Solar NOVA MAX 3K | |
|---|---|---|
| Output | ||
| Output voltage | 120 V single-phase | 120 V single-phase |
| Continuous output | 3,000 W | 3,000 W |
| Surge | 6,000 W | 6,000 W |
| Peak efficiency | 91% | 91% |
| Idle draw | 40 W | - |
| Transfer time | - | 10 ms |
| Parallel units | Up to 9 units | Up to 9 units |
| Solar | ||
| Max PV power | 4,000 W | 3,000 W |
| Max PV voltage (Voc) | 145 V | 250 V |
| MPPT range | 60 to 115 V | 90 to 230 V |
| MPPT trackers | 1 | 1 |
| PV current per tracker | - | 22 A |
| Battery and grid | ||
| Battery voltage | 48 V | 24 V |
| Battery types | Lithium, lead-acid | Lithium, AGM, gel, flooded |
| Max charge current | 140 A | 80 A |
| AC charge current | 60 A | 80 A |
| Battery communication | - | Yes |
| Grid sell-back | No | No |
| Generator input | No | - |
| UL 1741 | No | No |
| Build | ||
| App monitoring | Optional add-on | Included |
| Dimensions | 120 x 295 x 468 mm | 5.6 x 12.1 x 18.8 in |
| Weight | 24.3 lb | 26.5 lb |
| Warranty | 1 year | 3 years |
| Released | 2020-02 | - |
