Can anyone recommend me a half decent power supply to use for flash programming, I've been told by a few people just to use a battery charger and to be fair the person who did my files for me on customers cars just used a battery charger or jump pack but is this really acceptable? I wouldn't of thought your run of the mill battery charger would be up to it? As I'm starting to do this myself now I would like to at least make sure I have covered the basics to prevent any failed writes etc due to something as simple as this.

i have a power supply from maplin with selectable voltage, works well and very reliable.

booster packs do work well, used my works one afew times, worked well with no issues

i seen others using booster packs + a guy with jump leads
battery support unit 12/24 30amp + i have been recommended one at 12/24v 70amp

I use 30amps battery charger,... Works fine and well :D