lol . . .@Dellmassive Good video. At the end, was that your puzzled face or peed off face?
i was Genuinely surprised it didn't work.
the jump pack dumped all its power into the flat battery . . . . and that was that. - dead flat also. ( so we had a flat car battery and a flat jump pack !! )
reading the marketing bumf it should have worked - but real life, cold winter, cold thick oil, battered old Vaux Astra with a lazy starter and iffy glow plugs = no joy.
so i kept it as a USB power bank for a while - then sold it.
++++++++++
as for my mates car - i had the GB150 in the van anyway - that started it 1st turn of the key.
the GB70 & GB150 have been faultless,
(apart from when i cooked the GB150 in 50degC summer heat - but that's mentioned earlier in this thread and was replaced by NOCO out of warranty at cost - so that's fine as it wasn't a unit failure, just my own stupidity )