Which model for your household?

Four batteries that use the same socket. Pick the one that matches what your roof makes and what your evenings cost.

Comparison of the socket-connected batteries

Specification	Venus E Mini CHF 730.–	Our pick Venus E 3.0 CHF 1'550.–	Venus E 4.0 CHF 1'650.–	Venus E Max CHF 2'600.–
Capacity	2 kWh	5 kWh	5 kWh	10 kWh
Output power	600 W as delivered · 1,500 W once an electrician installs it	600 W as delivered · 2,500 W once an electrician installs it	600 W as delivered · 3,000 W once an electrician installs it	600 W as delivered · 3,600 W once an electrician installs it
Typical household	1 to 2 people	3 to 5 people	3 to 5 people	5 people and more
Estimated saving	CHF 87.– / year	CHF 216.– / year	CHF 216.– / year	CHF 277.– / year
Service life	> 10,000 cycles	> 6,000 cycles	> 10,000 cycles	> 10,000 cycles
Weight	22 kg	60 kg	47 kg	86 kg
Manufacturer’s warranty	10 years	10 years	10 years	10 years, 15-year design life
Choose	View — Venus E Mini	View — Venus E 3.0	View — Venus E 4.0	View — Venus E Max

“Our pick” is the model we bought, plugged in and tested ourselves — not a sales ranking. Savings simulated hour by hour on the reference profile: a house of 4'500 kWh a year, 4 kWp of panels, median Swiss municipality, 30,1 centimes/kWh from the grid against a 8,0 centimes/kWh feed-in tariff (ElCom, tarifs 2026 — médiane des 2107 communes suisses, ménage type H4). Calculate for your municipality. Cycle figures come from the manufacturer’s datasheets: over 6,000 for the Venus E 3.0, over 10,000 for the other three.