Dabbsson DBS2100 Pro vs EcoFlow DELTA 2 Max: Which to Buy

The EcoFlow DELTA 2 Max and the Dabbsson DBS2100 Pro are evenly matched, rated 4.1 and 4.1. The EcoFlow DELTA 2 Max leads on tested capacity. The Dabbsson DBS2100 Pro wins on value, battery life and solar input. The Dabbsson DBS2100 Pro costs $250 less ($799 vs $1,049).

Higher rated

EcoFlow DELTA 2 Max

#8 in Large4.1Full review

A proven 2kWh LiFePO4 station for home backup and RV trips with plenty of outlets. It costs less than the DELTA 3 Max Plus but has slower switchover and less output.

Amazon $1,049

$1,049

Dabbsson DBS2100 Pro

#10 in Large4.1Full review

For home-backup and RV buyers who want 2 kWh, high output and room to add batteries at a low price per watt-hour. Expect average efficiency at heavy loads.

Amazon $799 Dabbsson $799

$799

Prices were last checked October 30, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

Which should you buy?

Choose the EcoFlow DELTA 2 Max for tested capacity (88% of rated capacity delivered (1 test) vs 82% of rated capacity delivered (1 test)).
Choose the Dabbsson DBS2100 Pro for value ($0.37 per rated Wh vs $0.51 per rated Wh), battery life (Semi-solid-state LiFePO4, 4,500 cycles, 5-year warranty vs LiFePO4, 3,000 cycles, 5-year warranty) and solar input (1,200 W max solar input vs 1,000 W max solar input).

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every large portable power station; a clear win is highlighted. How we rank explains each one.

Factor weight	EcoFlow DELTA 2 Max	Dabbsson DBS2100 Pro
Overall rating	4.1/5	4.1/5
Value 25%	67 $0.51 per rated Wh	89 $0.37 per rated Wh
Tested capacity 15%	81 88% of rated capacity delivered (1 test)	55 82% of rated capacity delivered (1 test)
Battery life 15%	91 LiFePO4, 3,000 cycles, 5-year warranty	100 Semi-solid-state LiFePO4, 4,500 cycles, 5-year warranty
AC output 15%	54 2,400 W continuous AC	54 2,400 W continuous AC
Charging speed 10%	84 0-100% on AC in 1 h 20 min	50 full AC charge time not published (neutral score used)
Portability 10%	80 89 Wh per kg (50 lb (23 kg))	78 88 Wh per kg (54 lb (24.5 kg))
Solar input 5%	40 1,000 W max solar input	48 1,200 W max solar input
Features 5%	100 UPS (30 ms), expandable, 100 W USB-C, app	100 UPS (15 ms), expandable, 100 W USB-C, app

Independent capacity tests

EcoFlow DELTA 2 Max

Tested by	Usable AC energy	Of rated	Conditions
StorageReview	1,800 Wh	88%	AC discharge at a 350W load. Recharge took 2,370 Wh from the wall.