Unfortunately, from what I've seen most of the equipment for sale has very little in the way of listed specs (or none at all).
You could always try to E-mail the distributor you bought it from, they might be able to help, although from what
I've seen a lot of them don't know themselves.
Best thing is to be safe and use SR atties on the eGo Booster rather than LR atties. With LR atties you are driving most
equipment right at the edge anyway (if it works at all), and the added voltage of the booster could push it over.
You won't hurt the Booster, but you can hurt your equipment.