Pros: Nothing, couldn't be more disappointed.

Cons: Purchased 2 of these from Newegg both units defective batterries dead, because they are over 7 years old built in 2005. Spent several hours trying to get them to work, then called APC to find out they are discontinued radically old stock.

Overall Review: It would be nice if New-egg didn't try to pawn off old junk as first quality.