Battery size for angle grinder IAN 485600_2501 Parkside (Lidi)

[ericmark]

Not official been given it yet, it will be my birthday present. So not got the instructions out of the box. So did a google, Instructions in loads of languages except English I have 4 x 2 Ah 20 volt batteries, I wonder if this grinder needs the 4 Ah version.

Do I need the larger batteries?

 

[ETAF]

i have the Dewalt angle grinder and use a 5Ah on that , doesnt last long ,, i havent really tried my 2Ah on - or if i did it didnt work very well
I cut a load of coach bolts on a fence and i think i got 10min run time cutting about 16 bolts

 

[big-all]

if you think off it a a 4ahx18v battery contains 72wh [72x60 4320wm] so iff your angle grinder is say 300w on full blast you have about 12mins on a full battery