Also, how long will this power a vms 02ib?
Trey, the simple answer is...a long time. But here's a more detailed answer.
First, the battery rating is 18000mah at 3.7v, or 66Wh. (I can verify from using my Natech that this is probably a good number, although my Naztech seems to spec out at a slightly higher capacity 15000mah at 5V is 75Wh. Also, the experience testified in this thead seem to confirm that 66Wh probably isn't a bogus capacity claim.)
We need to supply the VMS with 9V minimum, so the battery rating at 9V is 7700mah.
I couldn't find the specs for the 52UB or 02IB, but the specs on the 5U are that it pulls about 230mA, which is really good. I'd heard that the 5U is just a repackaged and combined 02ib and 52UB, so the current specs are probably similar. But for conservatism, let's assume that the older preamps aren't as efficient...let's say 400mA.
7700mah / 400ma = 19.25 hours (if you assume the 230mA number, that goes to 33.5 hours)
So, I'm gonna say you can conservatively assume that this battery will give you 20 hours, but you'd probably be safe if you even took that up to the range of 25 to 30.