Re: cordless tools/rechargeable batteries
Cost and time versus the cost of buying a replacement is a personal decision specific to the value and expected use for the tool. As far a rigging with off the shelf rechargeables, I dont know. Never tried it. I did convert a 12-v makita drill to work on a cord for use aboard my power boat --mostly as a polisher, since I'm at a dock without power. But that was worth the time and effort for me versus hand-waxing.
This new ship here is fitted according to the reported increase of knowledge among mankind. Namely, she is cumbered end to end with bells and trumpets and clocks and wires. It has been told to me she can call voices out of the air or the waters to con the ship while her crew sleep. But sleep though lightly. It has not yet been told to me that the sea has ceased to be the sea.--Rudyard Kipling