EcoFlow
RIVER 2 Max
512 Wh · 500 W AC
0 hoursTarget 8 hours
Enough energy · peak check open
9,8hours · estimated
Runtime Lab
Your device.
How long do you need?
Choose your device. Set the time. See how much energy you need.
01Your device
Starlink Mini40 W · 1 × selected device
25–40 W manufacturer range · using 40 WView source ↗
Check power usageStarting power still unknown
Uses the top of Starlink’s official 25–40W average range.
02Your runtime target
Calculation settings85% efficiency · 10% reserve · 0 W idle
Planning assumptions for the AC path. Battery reserve is charge left unused; idle draw is the station’s own consumption. Other tools on this site can start from different defaults. Actual losses depend on the station and load. Charging during use is not included.
Different devices at the same time?
Make a complete power plan →
Make a complete power plan →
Your edits stay in this tab. Save a calculation using the link below.
03 / Compare your options
What does more capacity give you?
One set of assumptions. One time scale. The marker shows your target.
Energy and continuous-power comparison from EcoFlow South Africa product pages. Stock, price, warranty, delivered SKU and socket compatibility are separate checks.
EcoFlow
RIVER 2 Pro
768 Wh · 800 W AC
0 hoursTarget 8 hours
Enough energy · peak check open
14,7hours · estimated
EcoFlow
DELTA 3 Plus
1 024 Wh · 1 800 W AC
0 hoursTarget 8 hours
Enough energy · peak check open
19,6hours · estimated
Show the other 5 power stations
EcoFlow
DELTA 2
1 024 Wh · 1 800 W AC
0 hoursTarget 8 hours
Enough energy · peak check open
19,6hours · estimated
EcoFlow
DELTA 3 Max
2 048 Wh · 2 400 W AC
0 hoursTarget 8 hours
Enough energy · peak check open
39,2hours · estimated
EcoFlow
DELTA 2 Max
2 048 Wh · 2 400 W AC
0 hoursTarget 8 hours
Enough energy · peak check open
39,2hours · estimated
EcoFlow
DELTA 3 Ultra Plus
3 072 Wh · 3 600 W AC
0 hoursTarget 8 hours
Enough energy · peak check open
58,8hours · estimated
EcoFlow
RIVER 3 (UPS)
245 Wh · 300 W AC
0 hoursTarget 8 hours
Shorter than your target
4,7hours · estimated
What should I check before buying?
- Normal and starting power, including peak duration. An average alone cannot prove compatibility.
- Your local voltage, frequency, outlet, cable and exact model version.
- Actual consumption varies with temperature, battery condition and load. Test critical equipment on the exact setup.
Not sure about the wattage?
A measurement often tells you more than the maximum rating on a label.
Find out how to measure →The right connection matters too.
Runtime and connection compatibility are two separate questions.
Open the connection guide →