It might not have been Craftsman's fault; NiCad batteries are vulnerable to the memory effect, which means if they were not fully discharged when you recharge them, the maximum capacity shrinks.

The "memory effect" of NiCad batteries is an urban myth that got supercharged with a dose of confirmation bias. Nobody has replicated the memory effect in consumer batteries. When people think they are observing the memory effect, most of the time they are seeing the very high self-discharge rate of 10% (or very often more) per month of storage combined with regular human forgetfulness. They charge up the battery, let it sit for a few months, go to use it, notice it went dead faster than they expected, charge it up again, use it right away, and see that it's back up to normal capacity.

In my case, Craftsman just used REALLY bad cells, Plus there was no BMS, AND they wired them all in series so that if one or a few develop high internal resistance, basically the whole pack was shot. Very bad design + very cheap cells = designed obsolescence.

I thought the memory effect was basically a myth? https://en.wikipedia.org/wiki/Memory_effect