The tendency of NiCd battery packs to die over a short time annoys me. Some cells die sooner than others creating a second problem. IMO they cost more than they're worth and they should carry a "USE BY" label. I'm going to find a way around it. I have even thought about hacking something together using a 12V SLA and a buck boost converter.
My question is 'can you parallel charge a set of cells at their rated voltage and amperage without overcharging them?'