478 €
Deliveryabout 2–10 days
Returns–
Colour: grey 5.0 from 1 review on Bauhaus
To Bauhaus EcoFlow STREAM Ultra
Its kind or too few of its facts are known yet, so it is not in our ranking.
478 €
Prices per shop
On 4 November 2026 the lowest price for the EcoFlow STREAM Ultra is 478 € at Bauhaus, delivery to Germany included.
All prices include VAT and delivery to Germany. We may earn a commission when you buy through these links. It never changes our ranking.
479 €
Deliveryabout 3–7 days
Returns–
No reviews at this shop yet
To HORNBACH 
498 €
Deliveryabout 1–12 days
Returns–
Colour: grey No reviews at this shop yet
To MediaMarkt 498 €
Deliveryabout 1–12 days
Returns–
Colour: grey No reviews at this shop yet
To MediaMarkt 498 €
Deliveryabout 1–12 days
Returns–
Colour: grey No reviews at this shop yet
To Saturn 498 €
Deliveryabout 1–12 days
Returns–
Colour: grey No reviews at this shop yet
To Saturn 504 €
Deliveryabout 1–12 days
Returns–
Colour: grey No reviews at this shop yet
To MediaMarkt 504 €
Deliveryabout 1–12 days
Returns–
Colour: grey No reviews at this shop yet
To Saturn 505 €
Deliveryabout 1–12 days
Returns–
Colour: grey No reviews at this shop yet
To MediaMarkt 505 €
Deliveryabout 1–12 days
Returns–
Colour: grey No reviews at this shop yet
To MediaMarkt 505 €
Deliveryabout 1–12 days
Returns–
Colour: grey No reviews at this shop yet
To Saturn 505 €
Deliveryabout 1–12 days
Returns–
Colour: grey No reviews at this shop yet
To Saturn EcoFlow brand store
519 €1,099 € Discount as claimed by the shop. We have not followed this shop for the 30 days before the sale began, so we cannot verify the old price yet.How we work this out
Deliveryabout 3–7 days
Returns–
Colour: grey No reviews at this shop yet
To EcoFlow 
519 €
Deliveryabout 1–12 days
Returns–
Colour: grey 5.0 from 1 review on Kaufland.de
To Kaufland.de 539 €
Deliveryabout 1–12 days
Returns–
Colour: grey 4.0 from 4 reviews on Kaufland.de
To Kaufland.de 
Deliveryabout 1–2 days
Returnsreturns through the seller, at least 14 days by law
No reviews at this shop yet Shop reviews on Trustpilot
To Amazon.de Deliveryabout 1–2 days
Returnsreturns through the seller, at least 14 days by law
No reviews at this shop yet Shop reviews on Trustpilot
To Amazon.de 568 €
Deliveryabout 1–12 days
Returns–
Colour: grey 4.5 from 2 reviews on MediaMarkt
To MediaMarkt 568 €
Deliveryabout 1–12 days
Returns–
Colour: grey 4.5 from 2 reviews on Saturn
To Saturn 599 €1,099 € Discount as claimed by the shop. We have not followed this shop for the 30 days before the sale began, so we cannot verify the old price yet.How we work this out
Delivery–
Returns–
Colour: grey No reviews at this shop yet
To Yuma 629 €
Deliveryabout 1–3 days
Returns–
Colour: grey 5.0 from 1 review on Solar Power Supply
To Solar Power Supply 
799 € *
Deliveryabout 2–3 days
Returns–
Colour: grey No reviews at this shop yet
To Conrad 
806 € *
Deliveryabout 2–4 days
Returns–
Colour: grey No reviews at this shop yet
To Alternate At the same price, a shop in your own country comes first, then a shop selling its own stock before a marketplace seller, then the shorter delivery time, then free returns and the longer return window. Commission never counts.
Price history
Lowest price per day Tap a shop to hide or show its line.
Follow price changes via RSS. A feed reader (RSS app) shows a new entry at every change, with no e-mail address needed.
Lowest since 3 Nov478 €
Highest since 3 Nov806 €
Price drops since 3 Nov0no drop seen yet
EcoFlow STREAM Ultra specifications
The numbers that matter first, then every fact by group. As published by the maker or the shop we read it from.
EcoFlow · on the market since April 2025
Kind of system 1 fact
- Kind of system
Source: derived, no source of its own · checked on 2 Nov
How the battery connects to your home: to a socket, to a balcony solar system, through a hybrid inverter, on the AC side of an installed system, as a module for an inverter, or as a portable power station.
- Balcony solar battery (DC)
Capacity 3 facts
- Nominal capacity
Among the models we track
1.9 kWh on this model
Lowest
1 kWh Highest
8 kWh Middle
2.4 kWhLower than 21 of the 34 models we track.
Source: de.ecoflow.com · checked on 2 Nov
The cells’ full capacity, before the reserve the battery keeps. The usable capacity is the figure to compare.
- 1.9 kWh
- Largest configuration
Among the models we track
11.5 kWh on this model
Lowest
6.7 kWh Highest
42 kWh Middle
11.5 kWhLower than 16 of the 34 models we track.
Source: de.ecoflow.com · checked on 2 Nov
How far the system grows with extra batteries, in usable capacity.
- 11.5 kWh
- Batteries per system, at most
Among the models we track
6 on this model
Lowest
1 Highest
6 Middle
5Higher than 29 of the 37 models we track.
Source: de.ecoflow.com · checked on 2 Nov
How many battery units one system takes.
- 6
Power 4 facts
- AC output
Among the models we track
800 W on this model
Lowest
800 W Highest
6,900 W Middle
1,200 WLower than 20 of the 36 models we track.
Source: de.ecoflow.com · checked on 2 Nov
The most power the battery delivers to your home without a break, as the maker states it.
- 800 W
- AC output as delivered
Among the models we track
800 W on this model
Lowest
200 W Highest
800 W Middle
800 WHigher than 3 of the 26 models we track.
Source: de.ecoflow.com · checked on 2 Nov
The output the battery is set to when it arrives, which can be lower than its maximum.
- 800 W
- AC charging power
Among the models we track
1,050 W on this model
Lowest
800 W Highest
4,000 W Middle
2,050 WLower than 21 of the 30 models we track.
Source: de.ecoflow.com · checked on 2 Nov
How fast the battery charges from the grid.
- 1,050 W
- Bypass output
Among the models we track
2,300 W on this model
Lowest
2,000 W Highest
3,600 W Middle
2,300 WLower than 4 of the 13 models we track.
Source: de.ecoflow.com · checked on 2 Nov
The power passed straight through to the socket on the battery, such as when it is full or switched off.
- 2,300 W
Solar input 6 facts
- Coupling
Source: derived, no source of its own · checked on 2 Nov
Where the battery connects to the solar system: on the DC side, between the panels and the inverter, or on the AC side, behind the inverter.
- AC and DC
- Solar input
Among the models we track
2,000 W on this model
Lowest
0 W Highest
8,000 W Middle
1,900 WHigher than 14 of the 28 models we track.
Source: de.ecoflow.com · checked on 2 Nov
The most solar power the battery takes in directly from panels.
- 2,000 W
- Solar trackers (MPPT)
Among the models we track
4 on this model
Lowest
2 Highest
4 Middle
3Higher than 13 of the 25 models we track.
Source: de.ecoflow.com · checked on 2 Nov
How many separate strings of panels it takes, each tracked for its best power.
- 4
- Tracker voltage, lowest
Among the models we track
15 V on this model
Lowest
10 V Highest
30 V Middle
16 VLower than 14 of the 24 models we track.
Source: de.ecoflow.com · checked on 2 Nov
The lowest voltage at which the tracker works at full power.
- 15 V
- Tracker voltage, highest
Among the models we track
60 V on this model
Lowest
48 V Highest
550 V Middle
60 VHigher than 8 of the 23 models we track.
Source: de.ecoflow.com · checked on 2 Nov
The highest voltage at which the tracker works at full power.
- 60 V
- Solar current per tracker
Among the models we track
14 A on this model
Lowest
14 A Highest
36 A Middle
18 ALower than 18 of the 21 models we track.
Source: de.ecoflow.com · checked on 2 Nov
The highest current one tracker takes. A panel that delivers more is held to it.
- 14 A
Battery life and warranty 4 facts
- Cell chemistry
Source: de.ecoflow.com · checked on 2 Nov
The cells’ chemistry. LFP cells last many cycles and are less prone to overheating than NMC cells.
- Lithium iron phosphate (LFP)
- Rated cycles
Among the models we track
6,000 on this model
Lowest
3,000 Highest
10,000 Middle
6,000Lower than 9 of the 25 models we track.
Source: de.ecoflow.com · checked on 2 Nov
How many full charge cycles the maker rates the cells for.
- 6,000
- Capacity after the rated cycles
Among the models we track
70 % on this model
Lowest
60 % Highest
80 % Middle
70 %Higher than 2 of the 17 models we track.
Source: de.ecoflow.com · checked on 2 Nov
The share of capacity the maker says is left after the rated cycles.
- 70 %
- Warranty
Among the models we track
2 years on this model
Lowest
2 years Highest
12 years Middle
10 yearsLower than 35 of the 38 models we track.
When it matters
- A battery you buy to keep for ten years or more.
- A large and expensive system, where a failed cell costs a lot to replace.
When it matters less
- A small portable station you are likely to replace sooner hardly needs the extra years.
Source: de.ecoflow.com · checked on 2 Nov
How many years the maker’s warranty on the battery runs.
- 2 years
Backup power 2 facts
- Backup power
Source: de.ecoflow.com · checked on 2 Nov
What the battery powers during a power cut: nothing, a device at its own socket, chosen circuits, or the whole home.
- At a socket on the battery
- Off-grid use
13 of the 16 models we track have this.
Source: de.ecoflow.com · checked on 2 Nov
Whether the system runs without any grid connection.
- yes
Meter and tariffs 2 facts
- Dynamic tariff
23 of the 23 models we track have this.
Source: de.ecoflow.com · checked on 2 Nov
Whether the battery can charge when power is cheap and discharge when it is dear, on an hourly price.
- yes
- Time schedule
13 of the 13 models we track have this.
Source: de.ecoflow.com · checked on 2 Nov
Whether you can set times for the battery to charge and discharge.
- yes
Smart features 2 facts
- Connectivity
Source: de.ecoflow.com · checked on 2 Nov
How the battery connects to your network or the app.
- Wi-Fi, Bluetooth
- App
Source: de.ecoflow.com · checked on 2 Nov
The maker’s app for the battery.
- EcoFlow App
Build and placement 7 facts
- Protection rating (IP)
Source: de.ecoflow.com · checked on 2 Nov
How well the case keeps out dust and water. A battery that stands outdoors needs a higher rating.
- IP65
- Lowest operating temperature
Among the models we track
-20 °C on this model
Lowest
-20 °C Highest
-10 °C Middle
-20 °CLower than 1 of the 31 models we track.
Source: de.ecoflow.com · checked on 2 Nov
The coldest temperature at which the battery works.
- -20 °C
- Highest operating temperature
Among the models we track
55 °C on this model
Lowest
45 °C Highest
60 °C Middle
55 °CHigher than 2 of the 31 models we track.
Source: de.ecoflow.com · checked on 2 Nov
The warmest temperature at which the battery works.
- 55 °C
- Self-heating
28 of the 28 models we track have this.
Source: de.ecoflow.com · checked on 2 Nov
Whether the battery warms its own cells, so it charges in cold weather.
- yes
- Weight
Among the models we track
23.1 kg on this model
Lowest
4.7 kg Highest
82 kg Middle
25.9 kgLower than 21 of the 37 models we track.
When it matters
- Carrying a portable station to the garden, the car or the campsite.
- A wall or a balcony railing that has to bear the battery.
When it matters less
- A floor-standing system that is installed once and stays put.
Source: de.ecoflow.com · checked on 2 Nov
The weight of the battery, or of one unit for a battery built from several.
- 23.1 kg
- Noise
Among the models we track
30 dB on this model
Lowest
30 dB Highest
43 dB Middle
30 dBLower than 3 of the 11 models we track.
When it matters
- A battery in a hallway, a living room or next to a bedroom.
- A model with a fan that runs while it charges at full power.
When it matters less
- In a garage or a cellar nobody hears it.
Source: de.ecoflow.com · checked on 2 Nov
How loud the battery is while it runs, as the maker states it.
- 30 dB
- Cooling
Source: de.ecoflow.com · checked on 2 Nov
Whether the battery cools without moving parts or with a fan, which you can hear.
- Passive
Installation 2 facts
- Installation
Source: de.ecoflow.com · checked on 2 Nov
Whether you set the battery up yourself or an electrician has to connect it.
- Electrician for more power
- Clearance needed
Among the models we track
30 mm on this model
Lowest
30 mm Highest
50 mm Middle
30 mmLower than 2 of the 5 models we track.
Source: de.ecoflow.com · checked on 2 Nov
The free space the maker asks for around the battery.
- 30 mm
Sources: de.ecoflow.com
Ratings at the shops
Buyers rate the EcoFlow STREAM Ultra 4.4 out of 5, from 10 reviews at 5 shops (Kaufland.de DE, MediaMarkt DE, Saturn DE, Bauhaus DE, Solar Power Supply DE). We read the ratings on 4 November 2026.
4.4 out of 5. 10 reviews from 5 shops in 1 country
By country
- Germany, 5 shops 4.4 (4.4 out of 5) · 10 reviews
The bar is the country's share of the reviews.
| Shop | Rating | Reviews | Read |
|---|---|---|---|
| Kaufland.de DE | 4.0 (4.0 out of 5) | 4 | 3 Nov |
| MediaMarkt DE | 4.5 (4.5 out of 5) | 2 | 4 Nov |
| Saturn DE | 4.5 (4.5 out of 5) | 2 | 4 Nov |
| Bauhaus DE | 5.0 (5.0 out of 5) | 1 | 4 Nov |
| Solar Power Supply DE | 5.0 (5.0 out of 5) | 1 | 4 Nov |
How we combine them. Each shop counts once, with its biggest listing of this model, and its rating weighs by its number of reviews.
Not counted: Amazon (its terms do not allow us to show its ratings).
The maker
EcoFlow
- Reviews on Trustpilot
- Founded in 2017
EcoFlow makes portable power stations, solar equipment and home energy storage, and was started in 2017 by a group of battery engineers. The company says it has regional headquarters in the USA, Germany and Japan. Its home batteries include the STREAM Ultra and the STREAM Ultra X, alongside the DELTA Pro 3 power station.