It’s impossible to say, but if we assume it’s a typical Li-ion battery supplying 3.7V, then:

9 kAh x 3.7 V = 33.3 kWh

So, it would be enough to power the average American house (10 MWh/year) for 1.2 days, or 4 days for a typical European flat (3 MWh/year).

Edited wrong yearly consumption

Dacia is a small Romanian brand with a single plant, so learning that some are rebranded Renaults from China is quite surprising.

I looked up the Dacia Spring and it says, that it’s manufactured in China.