How Long Will It Run

Bluetti EB70S vs EcoFlow RIVER Pro

Bluetti EB70S against EcoFlow RIVER Pro: specifications side by side, runtimes on five reference appliances, and a verdict assembled from the numbers rather than from an opinion.

Side by side

Bluetti EB70SEcoFlow RIVER Pro
Capacity716 Wh720 Wh
ChemistryLFPNMC
Rated cycles2,500 to 80%800 to 80%
Inverter, continuous800 W600 W
Surge1,400 W1,200 W
Inverter idle draw10 W10 W
Solar input, max200 W200 W
Mains charge rate200 W660 W
Full mains recharge4 h1 h 36 min
Weight9.7 kg / 21.4 lb7.6 kg / 16.8 lb
AC outlets42
Indicative price£449 / $429—
Fridge-freezer (full size)10 h 1 min9 h 32 min
CPAP (no humidifier)13 h 1 min12 h 23 min
TV, 43 inch LED6 h 30 min6 h 12 min
Starlink (Standard dish)6 h 7 min5 h 50 min
Microwave, 1,000 W output——

The verdict

The EcoFlow RIVER Pro holds 4 Wh more — 1% more capacity, which on a fridge-freezer is the difference between 9 h 32 min and 10 h 1 min.

It is also the lighter of the two at 7.6 kg, which settles the argument.

Only one of the two has an indicative price recorded, so value is not comparable here.

They use different chemistries: the Bluetti EB70S is LFP and rated for 2,500 to 80% capacity, against 800 to 80% for the NMC unit. For anything that will be charged weekly, that alone decides it.

EcoFlow RIVER Pro refills faster from the mains — 1 h 36 min against 4 h.

Short answer. Buy the EcoFlow RIVER Pro if you want the hours and can live with 7.6 kg; buy the Bluetti EB70S if portability matters more than capacity. Neither is a bad buy — they are aimed at different jobs.

Where to buy

Bluetti EB70S

Amazon and approved-programme links are affiliate links; the site may earn a commission at no extra cost to you. Links marked “official site” are untracked. Prices and stock change constantly — check before you buy.

EcoFlow RIVER Pro

Amazon and approved-programme links are affiliate links; the site may earn a commission at no extra cost to you. Links marked “official site” are untracked. Prices and stock change constantly — check before you buy.