The batteries that power them have also changed over the years. Older cordless Ryobi tools were powered by nickel-cadmium (NiCad) batteries. These types of batteries have been popular for use in ...

If you play your cards right, you'll replace your laptop before you need a new battery. NiCad batteries were some of the ...

This turbine can charge a pair of NiCad batteries in about 10 hours, but it might be worth developing some smart circuitry to manage charging. If it were able to choose between a dedicated storage ...

That’s precisely what happened to [Larry G] when the now antiquated 7.2V NiCd batteries used by his cordless drill became too hard to track down. The drill was still in great shape and worked ...