Re-Use, Individual Cells from 18V NiCad Answered
Seems that with a bit of randomnity in mfging, some cells in an 18V battery might fail before others. With that in mind, I'm trying to re-use individual cells after a pack craps out.
Test 1 Battery pack from a "drill master" which I got for ~$2 at a thrift store. Google informs that this is a harborfreight tool, so expectations are low. Upon disassembly of the pack, 1 of the spot-weld connections between cells had broken. Since I don't currently have a 1.5v source, I'm using a 3v source to charge 2 cells in series. Only charging for a few minutes at a time. Currently, this 2 cell set will light a couple xmas lites for a few minutes after charging for a few min. I'm uncertain of the calibration of my v-meter, but it currently indicates 2.65v for these 2 cells. Depending upon the source, NiCads should max out at 1.45 to 1.65 v per cell.
Test 2: Pending- Ryobi drill batteries
I'm uncertain how to get a good read on the accuracy of my meter without a high-end meter to compare against. Suggestions?
Hopefully, I can find a proper 1 cell nicad charging device.
Thoughts? concerns? insights?