Can I use AirCard without its battery ?

Hello evevryone.
As it seems to be impossible to contact Netgear BEFORE buying one of their product to get information, I'm here.
So the question is simple : Can the AirCard 785 (French model, dunno if it's important) work on AC power (230V in France) with its battery completely REMOVED !
I know the question may appear weird, but I've used a smarthphone (with removable battery) for 6 months 24h/7days on AC power, and as the smartphone didn't work without its battery even on AC power, I should have left the battery inside the smartphone, and it became a ballon and finally died ... yes in 6 months ...
I think it was extremely stupid from the smartphone builder to force the presence of battery ... but it's surely because they wanna make customers buy another smarthpone or battery quicker ... :smileymad:
-
Anyway I'd like to avoid the same trouble with AirCard. If you have a reliable source, I'd be very glad.
Thank you in advance