A light, listed 2000 W inverter-charger that suits most mid-size RVs and boats. It handles kitchen appliances and refills the battery on shore power.
Amazon $864.13The Xantrex Freedom XC 2000 rates 3.8 among inverter-chargers 12V inverters; the Go Power! ASW-1800-12-TS rates 3.0 among 1,100 to 2,000 W ones. The Go Power! ASW-1800-12-TS costs $242.86 less ($621.27 vs $864.13).
Prices were last checked November 3, 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.

For RVs that already have a converter or solar charging and want an inverter with a built-in transfer switch.
Amazon $621.27Scores side by side
These two sit in different size classes (inverter-chargers and 1,100 to 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 | Xantrex Freedom XC 2000 | Go Power! ASW-1800-12-TS |
|---|---|---|
| Overall rating | 3.8/5 | 3.0/5 |
| Value 30% | 76 $0.43 per continuous watt | 29 $0.34 per continuous watt |
| Idle draw 15% | 50 idle draw not published (neutral score used) | 0 2 A idle (about 24 W) with nothing plugged in |
| Safety listing 15% | 100 ETL listed to CSA C22.2 No. 107.1 and UL 458 with marine supplement | 100 Certified UL 458; cULus certified |
| Warranty 15% | 25 2-year warranty | 25 2-year warranty |
| Features 15% | 75 optional remote, app add-on, lithium charge profile, hardwire terminal, display | 52 optional remote, transfer switch, hardwire terminal; no app |
| Efficiency 10% | 67 91% peak efficiency (maker rating) | 67 91% peak efficiency (maker rating) |
Specifications
| Xantrex Freedom XC 2000 | Go Power! ASW-1800-12-TS | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter-charger | Pure sine wave inverter |
| Continuous power | 2,000 W | 1,800 W |
| Surge power | 4,000 W for 5 s | 3,600 W for 3 s |
| DC input range | 10 to 18 V | 10 to 16.5 V |
| Idle draw | - | 2 A (24 W) |
| Power-saving draw | - | 0.1 A |
| Peak efficiency | 91% | 91% |
| Connections | ||
| AC outlets | 0 | 0 |
| GFCI outlets | No | No |
| Hardwire terminal | Yes | Yes |
| USB ports | None | None |
| Transfer switch | Yes | Yes |
| Charger | 80 A | - |
| Lithium charge profile | Yes | - |
| Parallel units | No | No |
| Control and build | ||
| Remote | Optional extra | Optional extra |
| App | Optional add-on | No |
| Display | Yes | No |
| Safety listing | ETL listed to CSA C22.2 No. 107.1 and UL 458 with marine supplement | Certified UL 458; cULus certified |
| Cooling | load-controlled fan | - |
| Dimensions | 15.4 x 10.8 x 4.0 in (390 x 275 x 102 mm), 12.0 in wide with flanges | 253 x 86 x 376 mm (9.96 x 3.39 x 14.80 in) |
| Weight | 16.3 lb | 9.7 lb |
| Warranty | 2 years | 2 years |
| Released | 2017-07 | 2025-02 |