SunGoldPower SPH504880A
#7 in 120 VFull review
The budget version of the SPH5048P for single-unit 120 V systems that will never need 240 V.
Amazon SunGoldPower $589$589
3.1/5
A cheap 24 V inverter for cabins and RVs that can take long high-voltage panel strings. It cannot grow past 3 kW.
- 3 kWOutput
- 24 VBattery
- 4,000 WSolar input
- 50 WIdle draw
- 1 yearWarranty
Check price at AmazonCheck price at SunGoldPower$459
Price checked October 23, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Takes 4,000 W of high-voltage panel strings on a 24 V battery
- Low price for a 3 kW all-in-one
- Works with lithium batteries over BMS communication
- Can run from solar with no battery
Cons
- Around 50 W idle draw is high for a small battery bank
- Cannot be paralleled for more power or 240 V
- No UL listing
The SunGoldPower SPH 120V family
Every SunGoldPower SPH 120V model we rank, smallest first. Ratings compare each against its own output.
| Model | Output | Rating | Price |
|---|---|---|---|
| SunGoldPower SPH302460A | 3 kW | 2.9/5 | $445 |
| SunGoldPower SPH302480A (this one) | 3 kW | 3.1/5 | $459 |
| SunGoldPower SPH504880A | 5 kW | 3.2/5 | $589 |
| SunGoldPower SPH5048P | 5 kW | 3.3/5 | $750 |
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its output. How we rank explains each one.
Specifications
| Model number | SPH302480A |
|---|---|
| Output | |
| Output voltage | 120 V single-phase |
| Continuous output | 3,000 W |
| Surge | 6,000 W |
| Peak efficiency | 92% |
| Idle draw | 50 W |
| Transfer time | 10 ms |
| Parallel units | No |
| Solar | |
| Max PV power | 4,000 W |
| Max PV voltage (Voc) | 450 V |
| MPPT range | 120 to 400 V |
| MPPT trackers | 1 |
| Runs without battery | Yes |
| Battery and grid | |
| Battery voltage | 24 V |
| Battery types | Lithium, lead-acid |
| Max charge current | 80 A |
| AC charge current | 40 A |
| Battery communication | Yes |
| Grid sell-back | No |
| Generator input | No |
| UL 1741 | No |
| Build | |
| App monitoring | Optional add-on |
| Dimensions | 378 x 280 x 103 mm |
| Weight | 16.8 lb |
| Warranty | 1 year |
| Released | 2021-11 |
Alternatives in this output
ECO-WORTHY 3500W 48V AIO Inverter
#8 in 120 VFull review
For a small 120 V cabin or shed system on a 48 V battery that needs a UL-listed unit for little money. Large arrays are better served by a 500 V input.
Amazon ECO-WORTHY $499.99$499.99
Growatt SPF 3500TL LVM-US
#10 in 120 VFull review
For a cabin, shed or backup circuit that needs 3.5 kW of 120 V power from a 48 V battery at a low price. Add a second unit later for 240 V.
Amazon$699
Compare
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