Head-to-head
BLUETTI AC70 vs EcoFlow DELTA 3 Classic
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EcoFlow DELTA 3 Classic scores higher (8.8 against 8.0). They cost the same (£499 against £499). For power cuts, EcoFlow DELTA 3 Classic lasts longer. BLUETTI AC70 is lighter to carry.
| Check price at BLUETTI UK | Tell me when it's back | |
| BLUETTI AC70 | EcoFlow DELTA 3 Classic | |
| Price | £499 | £499 |
| Capacity | 768 | 1,024 Wh |
| Output | 1,000 W | 1,800 W |
| Power-cut cover | 9 h | 12 h |
| Weight | 10.2 kg | 12.8 kg |
| UPS switch-over | 20 ms | 10 ms |
| Cycles | 3,000 | not published |
| Max solar input | 500 W | not published |
| Warranty | 5 years | 5 years |
| Spec score | 8.0 | 8.8 |
| Check price at BLUETTI UK | Tell me when it's back |
BLUETTI AC70: Expandable with B80, B230 or B300 batteries (BLUETTI calls this power bank mode; total not stated). Charge time given as 1.3-1.6 hours.
EcoFlow DELTA 3 Classic: Cycle life and solar input not published on the UK page. 5 years = 3 standard + 2 when registered in the app.
Which should you buy?
- Pick the BLUETTI AC70 if you carry it about (10.2 kg against 12.8 kg).
- Pick the EcoFlow DELTA 3 Classic if you want longer power-cut cover (about 12 hours against 9); you run bigger appliances (1,800 W output against 1,000 W); you need a 10 ms switch-over for a CPAP machine or computer; you want more storage for the money (49p per Wh against 65p).
Both are sold in the UK through the makers' own stores. Check what each will run, or see the savings and payback sums.