If you have a small lawn, that may do.This quote is hidden because you are ignoring this member. Show Quote
I have 19" version and I thought that's too small on around 3000sqft of lawn.
Also, you will never survive on a single 4A battery. You will need 2 of these. I have 2 4A and 3 2As the 2As are almost useless for the mower other than helping out in a jam.
If I have invest in these again in 2019, I would look at 60V or 80V systems.