hmm... sorry, run a charger and a lathe at the same time? As far as I'm aware, you need something that runs at around 5V to run a lathe (i.e. most pp use a 4 cell pack or attach their lathe to a charger with a motor run-in feature).
Anyway, as far as power supplies go, my advice is: think outside the box
I'm sure Novak's power supply is great... and heck it looks niiice and it is very compact. But you're paying a lot of money for only 10 A. If you happen to be running 2 chargers at 6 A each, I'm not sure it's gonna handle that. (and 6 A is what Danny from SMC recommends for charging certain batts).
this is what I use:
The build quality is excellent... I believe some major electronics/audio company outs their label on it and sells it at a higher price.
Others use it too... with no complaints as far as I recall. Do not buy it off e-bay if it goes about $100. Do a search and you can purchase a new one online for less than that. Good luck!