A cheap 1,500 W inverter with a phone app for small loads on a 48 V battery. Documentation is thin, so it suits tinkerers.
Amazon $119.85
For a small 48 V solar setup running electronics, lights and a router, with a real safety listing.
- 600 WContinuous
- 1,000 WSurge
- 120 VOutput
- 14.4 WIdle draw
- YesUL listed
- 3 yearsWarranty
Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.
- ETL listed to UL 458, which inspectors and insurers look for
- GFCI outlets, so loads plug straight in
- Idles under 15 W, gentle on a small 48 V bank
- Three-year warranty from a long-standing US brand
- No power-saving draw published, so plan on the full idle draw
- Only 1,000 W of surge, tight for compressors
- Remote panel costs extra
The Samlex PST 48V family
Every Samlex PST 48V model we rank, smallest first. Ratings compare each against its own size.
| Model | Continuous | Rating | Price |
|---|---|---|---|
| Samlex PST-600-48 (this one) | 600 W | 3.1/5 | $348 |
| Samlex PST-1500-48 | 1,500 W | 3.0/5 | $773.80 |
| Samlex PST-2000-48 | 2,000 W | 3.5/5 | - |
| Samlex PST-3000-48 | 3,000 W | 3.3/5 | - |
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | PST-600-48 |
|---|---|
| Output | |
| Type | Pure sine wave inverter |
| AC output | 120 V |
| Continuous power | 600 W |
| Surge power | 1,000 W |
| DC input range | 42 to 60 V |
| Idle draw | 14.4 W (0.3 A at 48 V) |
| Peak efficiency | 90% |
| Connections | |
| AC outlets | 2 |
| GFCI outlets | Yes |
| Hardwire terminal | No |
| USB ports | None |
| Transfer switch | No |
| Parallel units | No |
| Control and build | |
| Remote | Optional extra |
| App | No |
| Display | No |
| Safety listing | Intertek ETL listed; conforms to UL 458 and certified to CSA C22.2 No. 107.1 |
| Cooling | fan |
| Dimensions | 238 x 276.2 x 82 mm (9.4 x 10.9 x 3.2 in) |
| Weight | 5.9 lb |
| Warranty | 3 years |
Alternatives in this size
A bargain 1,000 W inverter for running a few small loads from a 48 V battery. With no spec sheet or safety listing, it suits DIY buyers who put price ahead of documentation.
Amazon $109.99A listed, mid-size 48 V inverter for cabins and vans that want GFCI outlets and a hardwire option.
Mr. Solar $773.80Compare
Compare the Samlex PST-600-48 with any other 48V inverter →
More from Samlex America: every Samlex America product ranked.