Verdict: The EcoFlow Delta 2 Max is the better choice for most home office buyers — faster recharge and more expandable capacity; the Anker 757 has a longer battery warranty.
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Winner: EcoFlow Delta 2 Max
Anker 757 PowerHouse: 7.4/10
EcoFlow Delta 2 Max: 7.3/10
Spec-by-spec comparison
Anker 757 PowerHouse
EcoFlow Delta 2 Max
Battery Capacity
1,229 Wh
2,048 Wh (base)
Battery Chemistry
LFP
LFP
Cycle Rating
3,000 cycles to 80%
800 cycles to 80%
AC Continuous Output
1,500W pure sine
2,400W pure sine
AC Recharge Speed
0–100% in ~1.5 hrs
0–100% in ~1.8 hrs
USB-C Output
100W x2
100W x2
Anker 757 PowerHouse
What works
3,000 cycle LFP battery rating — higher rated longevity than Delta 2 Max
23.8 lbs — significantly lighter and more portable for dual home/outdoor use
Six AC outlets with 1,500W pure sine wave output
What doesn't
1,229Wh capacity — approximately half the Delta 2 Max's base capacity
1,000W AC recharge — slower in absolute terms given lower capacity
No configurable UPS mode depth — simpler app without charging limit control
EcoFlow Delta 2 Max
What works
2,048Wh base capacity (expandable to 6,144Wh) — double the Anker's capacity
2,400W AC recharge in under 2 hours via X-Stream
2,400W continuous pure sine wave — handles demanding desktop PC setups