This is a follow up to a question I asked before. I need a new 18V Snap-On NICAD battery but $220 is just too much for what I will be using it for. I have a few tools that are seldom used but nice to have that would not be worthwhile for me to replace with another platform so I am thinking of getting my Snap-On 18V battery rebuilt. There is only one place around me that can rebuild a battery. I did have a battery rebuilt by them 10+ years ago with bad results. I am trying to trouble shoot what went wrong with that rebuilt battery. I found written on a cell BYD DSC2400P 1.2V m 26. Were those good cells used? Also, I see cell packs on Ebay. Are those any good and if so, which one to go with?