A mate is looking at getting this jump pack:

https://www.halfords.com/motoring/battery-maintenance/jump-starters/noco-gb20-500a-jump-starter-721880.html

Anyone got any experience with this or any other recommendations?
Cheers guys.

 

I work on trucks my breakdown van has a 12/24 volt powervamp jump pack. Takes some serious abuse there one of the best. But probably too expensive for home use

 

I have a Noco - highly recommend it. Great quality.

 

My mate bought the one in the link and is very impressed with it.