EcoFlow STREAM Ultra vs Zendure SolarFlow 800 Plus
Technical comparison · All-in-one
Two all-in-one systems with the same energy and the same feed-in limit. They differ on the solar side, four trackers against two, and on what happens without an internet connection: one carries on in a reduced mode, the other does not.
| Parameter | ||
|---|---|---|
| In brief | ||
| Nominal capacity | 1.92 kWh | 1.92 kWh |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Cost per kWh | 676.56 €/kWh | — |
| List price | 1299 € | — |
| Weight | 23.1 kg | 21.1 kg |
| Dimensions (W×D×H) | – × – × 45.8 cm | — |
| How long it lasts | ||
| Battery life cycles | 3650 cicli | 3650 cicli |
| The limit that runs out first | anni di garanzia | anni di garanzia |
| Rated cycles | 6000 cicli | — |
| Warranty | 10 anni | 10 anni |
| The numbers | ||
| Cost of stored energy | 0.185 €/kWh | — |
| Energy density | 83.1 Wh/kg | 91 Wh/kg |
| Identity | ||
| Use tier | F2 — Room-sized (1–3 kWh) | F2 — Room-sized (1–3 kWh) |
| Price | ||
| Price | ~450–1000 € | — |
| Universal specs | ||
| Voltage | 230 V | — |
| Category specs | ||
| Expandable | Yes | Yes |
| Maximum expanded capacity | — | 11.52 kWh |
| Battery voltage | 19.2 V | 48 V |
| Feed-in limit | 800 VA | 800 VA |
| Inverter included | No | Yes |
| Maximum solar input | 2000 W | 1500 W |
| MPPT trackers | 4 | 2 |
| Grid charging | Yes | Yes |
| Maximum charge power | — | 1.2 kW |
| Dynamic tariffs | Built in | — |
| Backup power | EPS (brief interruption) | — |
| Backup output | 1200 W | — |
| Ingress protection | IP65 | IP65 |
| Minimum temperature | -20 °C | -20 °C |
| Maximum temperature | 55 °C | 55 °C |
| Works without internet | With limitations | No |
| Home Assistant integration | — | Official |
| App required for setup | Yes | Yes |
| Declared standards | CE | VDE-AR-N 4105 |
The differences that matter
- Four trackers vs two, 2,000 W vs 1,500 W solar input → the first handles panels with different orientations better and takes more of them.
- Without internet: reduced mode vs does not work → if the connection drops, the first carries on with limited functions, the second stops.
- 23.1 kg vs 21.1 kg → two kilos less to put in place with the second.
Manufacturer-declared values.
Which one to choose
Choose EcoFlow STREAM Ultra if…
your array has panels on different orientations and you want a tracker for each, and you do not want the system to stop entirely if the home internet drops. The price is a slightly heavier unit to put in place.
Choose Zendure SolarFlow 800 Plus if…
you have a few panels all facing the same way, the home internet connection is stable and you prefer the lighter unit. The risk is exactly that: without a connection it does not work at all.
Where to buy
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