rif_fox

well after many forced discharges and recharges they seem to slowly go down. *sigh* its up to 5 cycles now from flat to charge. but charge now to 50%

i used energizers for this test. since the real cheap ones wont even do another charge. those batteries feel real light.
i could leave them in longer like instead of 5 hours try 20 hours.
the only way you can charge them if you want to try.. find a charger that does trickle chargeing.. 180 to 200MA max. most other chargers see these and label them as bad. since they have a high resestance to high current chargeing.

as for fixing ni-cads ive done that.. i blasted them with a 7 am current for a few minutes and wiped that memory from them. i have old 600Ma ni-cads used to charge to 320Ma and after the blast they hit 620Ma.
however i lost 2 of them in the process of that test. they blew sky high. li-ions those i stay away from.. the charge rate of those seem to be like 300Ma max and thats it.. once they go dead thats it they are gone. plus i dislike the lithium in a battery.. heh drive a nail in one and you will see flames come out.
as for lead acid if it can be opened and the chambers exposed like an old car lead acid.. i used to do a trick of pouring a small amount of water in the chambers. it works for a while.. or sometimes for many months.
however im really hooked on these new batteries that came out you might like called eneloop. they are nimh rechargeables with a low self discharge.. i have the same ones sitting for one year and they are still charged. even when in use they seem to last real long. they go past alkaline batteries. you can get those either on the net or at the source.

but yeah your drill battery i bet if you open the battery up its just a bunch of 1.2 AA cells in there or something. most seem to do that now. i can get battery connectors and make another. or put those nimh ones in no more memory issues.