Xantrex Freedom EX 4000
For a 48 V RV, bus or boat that wants inverter, charger, transfer switch and 12 V converter in one box. It replaces several components, but idles high and carries a short warranty.
Amazon $2,807.70$2,807.70
2.8/5
A heavy, surge-strong 3,000 W 48 V inverter-charger for off-grid or backup systems on a budget, where a UL listing is not required.
- 3,000 WContinuous
- 9,000 WSurge
- 120 VOutput
- 60 WIdle draw
- NoUL listed
- 1 yearWarranty
Check price at Sigineer$799
Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Holds 9,000 W for 20 seconds, enough to start well pumps and compressors
- Transformer-based design shrugs off motor and inductive loads
- Lithium setting plus adjustable charge current
- Auto generator start relay built in
Cons
- High idle draw (60 W) unless power saver is on
- No UL listing, so it may not pass a permitted install
- One-year warranty
The Sigineer APC 48V family
Every Sigineer APC 48V model we rank, smallest first. Ratings compare each against its own size.
| Model | Continuous | Rating | Price |
|---|---|---|---|
| Sigineer APC3048NC (this one) | 3,000 W | 2.8/5 | $799 |
| Sigineer APC3048D | 3,000 W | 3.0/5 | $799 |
| Sigineer APC6048D | 6,000 W | 2.9/5 | $1,099 |
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 | APC3048NC |
|---|---|
| Output | |
| Type | Pure sine wave inverter-charger |
| AC output | 120 V |
| Continuous power | 3,000 W |
| Surge power | 9,000 W for 20 s |
| DC input range | 40 to 64 V |
| Idle draw | 60 W (1.2 A at 48 V) |
| Power-saving draw | 15 W |
| Peak efficiency | 88% |
| Connections | |
| AC outlets | 0 |
| GFCI outlets | No |
| Hardwire terminal | Yes |
| USB ports | None |
| Transfer switch | Yes |
| Pass-through rating | 30 A |
| Charger | 30 A |
| Lithium charge profile | Yes |
| Parallel units | No |
| Control and build | |
| Remote | Optional extra |
| App | No |
| Display | No |
| Safety listing | No |
| Design | Low-frequency (transformer) |
| Cooling | fan |
| Dimensions | 20 x 8.5 x 7 in (508 x 222 x 180 mm) |
| Weight | 49 lb |
| Warranty | 1 year |
Alternatives in this size
AIMS Power 2000W 48V Inverter Charger
For a small 48 V off-grid cabin or backup setup that wants transformer-based surge and a built-in charger at a modest price. Its 20 A charger suits smaller banks.
Amazon $1,007$1,007
AIMS Power 6000W 48V Inverter Charger
For a 120 V-only off-grid cabin on a 48 V bank that needs big surge and fast charging for less than premium brands. Homes with 240 V loads should pick the split-phase version.
Amazon $2,228.99$2,228.99
Compare
Compare the Sigineer APC3048NC with any other 48V inverter →
More from Sigineer Power: every Sigineer Power product ranked.