AIMS Power 10000W 48V Split Phase
For a big off-grid home that needs 10 kW of split phase from 48 V and doesn’t need a UL listing. If the install must be inspected, the listed 12 kW costs little more.
Amazon AIMS Power $4,160$4,160
4.4/5
For a small off-grid cabin or backup system that needs some 240 V and won’t grow past 3.8 kW. A bargain at clearance prices, but it’s discontinued and can’t be expanded.
- 3,800 WContinuous
- 7,000 WSurge
- 120/240 V split-phaseOutput
- 27 WIdle draw
- YesUL listed
- 2 yearsWarranty
Check price at Northern Arizona Wind & Sun$350
Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.
Discontinued: no longer sold new; the links below may show remaining or used stock.
Pros
- Gives 120/240 V split-phase for a well pump from one compact unit
- Idles at 27 W, low for a transformer inverter
- Surges to 7,000 W for 5 seconds for motor starts
- Clearance pricing makes it cheap for its size
Cons
- Only 2,700 W on either 120 V leg
- Can’t be stacked, so the system can’t grow
- Discontinued in 2025, with a 2-year warranty
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 | 865-4048-21 |
|---|---|
| Output | |
| Type | Pure sine wave inverter-charger |
| AC output | 120/240 V split-phase |
| Continuous power | 3,800 W |
| Surge power | 7,000 W for 5 s |
| DC input range | 40 to 64 V |
| Idle draw | 27 W (0.6 A at 48 V) |
| Power-saving draw | 11 W |
| Peak efficiency | 94% |
| Connections | |
| AC outlets | 0 |
| GFCI outlets | No |
| Hardwire terminal | Yes |
| USB ports | None |
| Transfer switch | Yes |
| Pass-through rating | 30 A |
| Charger | 45 A |
| Lithium charge profile | Yes |
| Parallel units | No |
| Control and build | |
| Remote | Optional extra |
| App | Optional add-on |
| Display | No |
| Safety listing | c(CSA)us certified to CSA C22.2 No. 107.1-01 and UL 1741 Ed. 2 |
| Design | Low-frequency (transformer) |
| Cooling | fan |
| Dimensions | 15.2 x 13.5 x 7.6 in (387 x 343 x 197 mm) |
| Weight | 67.2 lb |
| Warranty | 2 years |
Alternatives in this size
Sigineer HP18048D
For large unpermitted off-grid homes that want 18 kW of split-phase power from one 48 V box, accepting high idle draw.
Sigineer $3,599$3,599
Schneider XW Pro 6848 Discontinued
For an off-grid home or whole-house backup that needs 240 V and fast charging, if you can still find one. Schneider stopped selling it in 2025 but supports it to 2035.
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