No, nothing to do with lifeboats!
I was given a non-working cordless drill this week. Yeah, I have a reputation for bringing things back to life or repairing them, as you can imagine.
This drill was a Sainbury's own make and the battery pack had expired. Either through over charging or under charging. Anyway, the terminals on the battery were covered in the usual fur you get when rechargeable batteries go bad.
Normally you buy a new battery pack, job done. But I've already got a DeWalt cordless drill and this being a Sainsbury's cheap Chinese special, the battery packs aren't readily available.
Instead of throwing it away I decided that since the Sainsbury's drill was a 14v drill, I could use it on a 12v car (or boat) battery. So I set to converting it into a boat drill by fitting a lead and 12v lighter plug.
Et Voila! I now have a drill/powered screwdriver that I can use on the boat just by plugging it into a 12v socket.
The lead is a couple of metres long so it covers most of the boat. Any further away from a socket and I just use my hand drill. Plus the lead goes into the battery pack. Should I ever find a replacement battery pack the drill will still be able to work.
For a freebie (I already had the wire and 12v socket) its a nice re-use of a knackered object.
Plus the boat batteries get charged by solar panels so the elecrtricity is free too!