Sigenergy SigenStor 8kWh vs GivEnergy 9.5kWh Battery: kWh, warranty and £/kWh compared

Head-to-head UK comparison of the Sigenergy SigenStor 8kWh and GivEnergy 9.5kWh Battery on the metrics that determine real value: usable capacity, warranty, round-trip efficiency and cost per usable kWh.

Sigenergy SigenStor 8kWhGivEnergy 9.5kWh Battery
Usable kWh89.5
Rated kWh89.5
Round-trip efficiency95%90%
Warranty10y12y
Installed cost£7,100£5,400
Cost per usable kWh£888£568