
Non-expandable Delta 3 with 4000-cycle LiFePO4 and 140W USB-C ports.
12 models tracked, average score 57 of 100. Best of the lineup: EcoFlow Delta 3.

Non-expandable Delta 3 with 4000-cycle LiFePO4 and 140W USB-C ports.

Delta 3 with expansion up to 5kWh and 10ms UPS; 1500W AC recharge.

Compact 245Wh unit with sub-10ms UPS switchover and a quiet fan; two AC outlets.

The benchmark 1kWh unit: 1800W output, six AC outlets, expandable to 3kWh.

Largest River 2 with 800W continuous output and 70-minute AC recharge.

Small base unit that accepts an extra battery to reach 858Wh; 600W continuous output.

4kWh unit with native 120/240V output, 2600W solar input and 10ms UPS.

2kWh base expandable to 6kWh; 1000W solar input and 2400W continuous output.

Mid-size River with four AC outlets and 100W USB-C; full recharge in roughly an hour.

Entry LiFePO4 unit that recharges from the wall in about an hour; X-Boost lets it run 600W resistive loads at reduced voltage.

Whole-home class: 7200W 120/240V inverter with up to 5.6kW solar; inverter plus one battery weighs about 180 lb.

3.6kWh workhorse with 30A outlet and massive expansion; heavy at 99 lb.