Hey super-duper,
These batteries are from APC SmartUPS 1400 rack mounted power supplies.

The light ran for a little over an hour before it started to dim. I don't know the charge level of the battery prior to this test. I am charging it now to see how long it takes from a "depleted" state. Then will re-run the "drain" test.

As soon as I get a chance I am going to Home Depot to see if I can find some lower power lights like most of ya'll are using. I'll keep the 55W for a nice BRIGHT light when its needed.

Bob