Redodo 3000W Inverter Charger
#10 in Inverter-chargersFull review
A budget inverter-charger for home backup or a DIY RV with a 12 V lithium bank. Compare it with LiTime’s version of the same unit, which usually sells for less.
Amazon $451.24$451.24
The Redodo 3000W Inverter Charger is the better 12V inverter overall, rated 3.9 to 3.4. The Redodo 3000W Inverter Charger leads on value and warranty. The Magnum Energy MS2812 wins on safety listing. The Redodo 3000W Inverter Charger costs $1,526.71 less ($451.24 vs $1,977.95).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Magnum Energy MS2812
#21 in Inverter-chargersFull review
For full-time RVers who want a rugged low-frequency inverter-charger that will start air conditioners and charge fast from a generator.
Portlandia Electric Supply $1,977.95$1,977.95
Which should you buy?
- Choose the Redodo 3000W Inverter Charger for value ($0.15 per continuous watt vs $0.71 per continuous watt) and warranty (5-year warranty vs 3-year warranty).
- Choose the Magnum Energy MS2812 for safety listing (ETL listed to UL/cUL 458, CSA C22.2 No. 107.1-01; meets KKK-A-1822E vs no UL 458 or UL 1741 listing stated).
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 | Redodo 3000W Inverter Charger | Magnum Energy MS2812 |
|---|---|---|
| Overall rating | 3.9/5 | 3.4/5 |
| Value 30% | 100 $0.15 per continuous watt | 39 $0.71 per continuous watt |
| Idle draw 15% | 50 idle draw not published (neutral score used) | 33 2.5 A idle (about 30 W) with nothing plugged in |
| Safety listing 15% | 0 no UL 458 or UL 1741 listing stated | 100 ETL listed to UL/cUL 458, CSA C22.2 No. 107.1-01; meets KKK-A-1822E |
| Warranty 15% | 100 5-year warranty | 50 3-year warranty |
| Features 15% | 68 remote included, lithium charge profile, display; no app | 65 optional remote, app add-on, lithium charge profile, hardwire terminal |
| Efficiency 10% | 50 efficiency not published (neutral score used) | 56 90% peak efficiency (maker rating) |
Specifications
| Redodo 3000W Inverter Charger | Magnum Energy MS2812 | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter-charger | Pure sine wave inverter-charger |
| Continuous power | 3,000 W | 2,800 W |
| Surge power | 9,000 W | 3,900 W for 5 s |
| DC input range | 10.5 to 16 V | 9 to 16.8 V |
| Idle draw | - | 2.5 A (30 W) |
| Power-saving draw | - | 0.7 A |
| Peak efficiency | - | 90% |
| Connections | ||
| AC outlets | - | 0 |
| GFCI outlets | - | No |
| Hardwire terminal | - | Yes |
| USB ports | - | None |
| Transfer switch | Yes | Yes |
| Charger | 45 A | 125 A |
| Lithium charge profile | Yes | Yes |
| Parallel units | - | No |
| Control and build | ||
| Remote | Included | Optional extra |
| App | No | Optional add-on |
| Display | Yes | No |
| Safety listing | No | ETL listed to UL/cUL 458, CSA C22.2 No. 107.1-01; meets KKK-A-1822E |
| Cooling | - | fan |
| Dimensions | 16.54 x 7.28 x 7.09 in | 13.75 x 12.65 x 8.0 in (34.9 x 32.1 x 20.3 cm) |
| Weight | 52 lb | 55 lb |
| Warranty | 5 years | 3 years |