Dell for replacement APC batteries

I was woken up at 2:00am by my car alarm going off. Yes I thought it was a false alarm, but the thing went on longer than normal, so I got up to take a look. The window was busted out and the perp grabbed my radar detector and a bunch of CDs. Just as I was assessing the damage, my APC Pro 500 went off beeping like mad. “replace battery”. I guess it is time 5 years into it. So I get to a searching and what do you know, Dell has the best price on APC replacement batteries. And these are factory APC batteries, not “OEM compatible” ones. Who woulda thunk?