Dabbsson DBS3500
#14 in Home backupFull review
For homeowners building a whole-circuit backup system who want 3.4 kWh now, fast solar charging and a path to 240V. It is too heavy to treat as a camping unit.
Amazon $2,537.88 Dabbsson $1,599$1,599
3.8/5
For RV and home-backup users who want 3 kWh and a TT-30R outlet at a lower price than the F3800 Plus.
- 3,072 WhCapacity
- 3,600 WAC output
- 91.5 lbWeight
- LiFePO4Battery
- $0.46Price / Wh
Check price at Amazon$1,398.98Check price at Anker$1,398.98
Price checked October 20, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Measured about 2646 Wh usable from 3072 Wh rated (86%)
- 3600W continuous with 7200W surge and a TT-30R outlet
- 2400W combined solar input
Cons
- 91.5 lb
- Measured round-trip efficiency of about 75% is below the class leaders
How it scores
The rating comes from 8 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Independent capacity tests
Usable energy delivered from a full charge through the AC outlets, as measured by independent reviewers. Inverter losses mean no station delivers its full rated capacity.
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| CNET | 2,646 Wh | 86.1% | 480W load logged with HOBOware; round-trip efficiency 74.62%; recharge 2 h 20 min |
Specifications
| Battery | |
|---|---|
| Rated capacity | 3,072 Wh |
| Tested usable capacity | 2,646 Wh (86%) |
| Chemistry | LiFePO4 |
| Cycle life | 4,000 |
| Output | |
| AC output | 3,600 W (7,200 W surge) |
| Boost mode (resistive loads) | 4,860 W |
| AC outlets | 5 total |
| 120V 20A outlets (NEMA 5-20R) | 4 |
| RV 30A outlet (TT-30R) | 1 |
| UPS / pass-through | Yes (20 ms switchover) |
| Charging | |
| Max solar input | 2,400 W |
| Solar input voltage | HV input 1600W + LV input 800W |
| Build | |
| Weight | 91.5 lb (41.5 kg) |
| Warranty | 5 years |
Alternatives in this size
EcoFlow DELTA Pro 3
#15 in Home backupFull review
For households that want a single wheeled unit able to back up 240V circuits and expand toward whole-home capacity.
Amazon $2,799 EcoFlow $2,799$2,799
Jackery Explorer 5000 Plus
#17 in Home backupFull review
A 5kWh, 240V home-backup system for households that want to power large appliances through a transfer switch.
Amazon $3,028.25 Jackery $3,149$3,028.25
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