What is the dumbest and most stupid thing you've done or brought for your boat?




This is one of two secondhand batteries I brought on gumtree, big 200 amps. Nearly killed me getting them on the boat, but cheap at $50 each if they were any good!
Yes my two 6volters died and I'm to cheap to buy $500 worth of batts for a boat I'm about to sell at a give away price soon.
Well the story was good, change over batteries from Thesses as they went with a different type so all 60 of them had to go.
They worked at first but I thought they were a bit hungry sucking up the power and not reaching full charge after two days.
Well I woke up to flat batts this morning after a lot of charging yesterday, I kicked myself in not checking for a power leak before giving up on the old ones. And flattening these ones which is not good for them, but a $100 for fresher batts is good value and I'm sure they will recharge.
so genny on for two hours and 70amps later no charge in them!
Had to move boat so main engine can have a go too, nope nothing! Ahhhhhh........
Gees I'm still not sure why! Iv lived with batts half my life and had some good runs with them, so I'm stumped.
Stuck my multi meter everywhere looking for a leak and nothing positive 'pun intended'.
Dam it I'm buying new ones tomorrow.