EcoFlow RIVER 2 Max vs Zendure Ace 1500
Technical comparison · Compact
Two portable power stations for wall-socket loads that split on the heaviest appliance: 500 W continuous against 1500 W (manufacturer-declared figures). Below 500 W power does not decide it, and weight and USB-C matter more.
| Parameter | ||
|---|---|---|
| Awards | — | |
| In brief | ||
| Nominal capacity | 0.512 kWh | — |
| Continuous output | 500 W | 1500 W |
| Peak output | 1000 W | 3000 W |
| Cell chemistry | LFP (lithium iron phosphate) | — |
| Cost per kWh | 779.3 €/kWh | — |
| List price | 399 € | — |
| Weight | 6.1 kg | 4 kg |
| How long it lasts | ||
| Battery life cycles | 1825 cicli | 1825 cicli |
| The limit that runs out first | anni di garanzia | anni di garanzia |
| Rated cycles | 3000 cicli | — |
| Capacity at end of cycle life | 80 % | — |
| Warranty | 5 anni | 5 anni |
| The numbers | ||
| Cost of stored energy | 0.427 €/kWh | — |
| Energy density | 83.9 Wh/kg | — |
| Power-to-capacity ratio | 0.98 C | — |
| Identity | ||
| Use tier | F1 — Outlet-sized (up to 1 kWh) | F1 — Outlet-sized (up to 1 kWh) |
| Price | ||
| Price | 399 € | — |
| Universal specs | ||
| Voltage | 220 V | — |
| Category specs | ||
| Fastest USB-C | 100 W | 65 W |
| Maximum charge power | 0.66 kW | 0.9 kW |
| Maximum solar input | 220 W | 400 W |
| Backup power | EPS (brief interruption) | EPS (brief interruption) |
| Switchover time | 30 ms | 20 ms |
| Ingress protection | — | IP31 |
| Mounting | Portable | — |
| Minimum temperature | -10 °C | -20 °C |
| Maximum temperature | 45 °C | 45 °C |
| Declared standards | — | CE |
JouleSpecs Awards
No awards in this tier.
Most capable Outlet-sized (up to 1 kWh)
Highest technical score among the 7 sheets in the Compact category (outlet-sized tier): 86/100.
How we assign awards →The differences that matter
- 500 W vs 1500 W continuous, peaks of 1000 W vs 3000 W → with loads that draw far more at start-up, the RIVER 2 Max is out of its range.
- Solar input 220 W vs 400 W → the Ace 1500 takes almost twice the panels.
- Maximum charging 0.66 kW vs 0.9 kW → the Ace 1500 fills up faster from the wall.
Which one to choose
Choose EcoFlow RIVER 2 Max if…
you mainly need a router, phones and a laptop: USB-C goes up to 100 W and the rest sits comfortably under the power limit. It costs you 2 kg more to carry, a slightly slower switch to battery, and a minimum operating temperature of -10 °C instead of -20 °C.
Choose Zendure Ace 1500 if…
you want to run one heavy appliance, even one that draws a lot at start-up, while carrying only 4 kg; it works down to -20 °C. You give up fast USB-C, which stops at 65 W here.
Where to buy
Paid link: the price for you does not change.
As an Amazon Associate I earn from qualifying purchases.
The purchase links are the same as on the two product pages and don't influence the verdict. The product pages have the complete data.