Solder the wire.
You have to buy a new battery. There is a few ways to repair one. It depends on what you did to it. I recommend a standard 8.4 volt battery. It has a decent fire rate and is affordable
Probably in the stock.
It tack a wholesome big piece of the pie, if you know what I mean? A airsoft battery tacks itself all the time.
By it off of airsoft megastore
Yes
No
Take it to a qualified repair shop
depends on what you buy and if you can fix it
It depends on which company makes it, and what battery it uses.
no, but it will damage the battery.
on a 1989 Cadillac Seville you can bypass the ignition by running a wire to the starter and one from the battery until you can get it fix
you can cut wire of battery for 2 hours. then you fix it and enter your correct code.