Well I just bought a cheap Oncore battery off ebay for my Powerbook(I wanted extra juice for the long flight in a few days). This battery has a low loadcycle count but states that the battery capacity was 50%. I've been reconditioning the battery and have gone through 2 complete run-downs and charge ups and now states that it's at 55%. I let it die then goes to sleep and I've left it sit that way for 6+ hours each time to try to fully drain it. Anyone ever use the Oncore non-OEM batteries? How are they supposed to be compared to Apples OEM batteries? My OEM battery has twice the loadcycles but I can still manage twice the life out of it. Currently I can get at least 2 hours on this battery so I'm trying to see if I can get it up to 4 hours. Up from about 1 1/4 - 1 1/2 from when I first got it.