Hi,
Well it's not about replacing a battery. That only has to happen every couple years or so. My Fios battery had to be replaced every 1.5 years or so though.
This is about USING the battery for various purposes, where you connect the device when you have to use the device, then unplug it when done.
In particular, i've wired up my cordless drill to the 12v battery. The drill plugs into a connector, the connector plugs onto the battery terminals using the 'terminals' we are talking about. Moving around a little with the drill means the terminals get stressed...not much, but enough to break the wire now and then. It's not too often but fixing it means breaking out the soldering iron and heating it up, then resoldering the wire.
The gimmick is just to solder more metal to the connector itself, then use that extra metal to hold the wire. It can be made in various shapes, so that you can wrap the wire around it one or two times before soldering the very end to the connector top side.
I can take a picture a little later on, but it's not pretty
It's just functional, for now, until i get better terminals.
I also found some heavy duty terminals that i think i can use. These have a 'rolled up' sleeve for crimping the wire, and unrolling that metal will yield a nice strip of metal that is already part of the terminal body. That means more metal to mount to, which will probably work pretty well. These things set me back $6 for quantity 7 terminals so i hope they work. I picked them up locally so no wait for shipping.
I'll try to get the pics a little later today. I should have taken a pic of a broken one too but didnt do that and it's 'fixed' now, but just imagine a seven (or more) strand wire with only two strands left soldered to the terminal, the rest flapping in the breeeze
I thought about other ways to handle this too, such as installing better terminals on the battery. I heavy duty connector would be nice, with a mating connector to the drill, but then i'd have to do all my 12v batteries and i dont want to have to do that. I also use a "jump pack" sometimes where the drill plugs into that via a cigar lighter plug connector.
Thanks for any ideas or suggestions. I like the extra multi strand wire suggestion, and i have such a wire around too already. It's ultra flexible so that will be part of the new terminal 'upgrade'.