The batch of jobs around the house and garden, taken on by me this Summer, represented the first real use in anger of the Lithium-ion battery-power tools which I have bought to replace the Ni-Cad tools I previously have used.
Each use, I find myself saying, "That's more like it!"
What an improvement! Really glad I got them. What crap the Ni-Cad stuff is in comparison.
Always full power. Charge whenever. Swap out batteries that are still partially charged.
Only downside, I hear burglars now are regularly going about equipped with LI-ion devices to overcome locks and other security hardware.