I

The yellow plot is a stock 800 mAH NiCD that was fully charged and then left on the shelf off charge for 3 days. You can see that the voltage is depressed and at around 67 minutes a cell dropped out. The capacity measured was 712 mAH at a 0.5A discharge rate and a standard cutoff voltage of 0.8 volts/cell (or 8 volts).

The green plot is the same NiCD pack as above but it was intentionally overcharged for 7 hours. It was then cooled down to room temperature and was discharged two hours later. There is no cell drop out. The capacity measured was 763 mAH at a 0.5A discharge rate and a 0.8 volts/cell cutoff voltage.

The red plot is a 1400 mAH NiMH pack that was fully charged and then left on the shelf off charge for about 7 days. You can see a slight cell drop out at around 150 minutes. The capacity measured was 1280 mAH at a 0.5A discharge rate and a 0.8 volts/cell cutoff voltage.

Summary
Nominal Capacity	Discharge Rate	Cutoff Voltage	Capacity	Notes
800 mAH NiCD, test 1	0.5 amps	8 volts	712 mAH	Pack had about 10 prior cycles. It had been accidentally overcharged twice. Sat for 3 days after full charge before discharging
800 mAH NiCD, test 2	0.5 amps	8 volts	763 mAH	In this test, the pack was purposely overcharged for 7 hours. Sat for 2 hours after full charge before discharging.
1400 mAH NiMH	0.5 amps	8 volts	1280 mAH	This is a brand new pack. The pack has been carefully charged. No known abuse. It sat for around 7 days after charge before discharging.