It sounds like there might be more than one problem. The battery not staying charged is either a failure of the charging system or something that's draining it when parked, but if you charge it with an external charger, it should then start and run the bike for quite a while.
As Kevin said, a short circuit is a serious thing, and will either blow a fuse, or melt wiring and start fires, and that sort of thing. When you say "I hear a "click" and bike does not turn on", exactly what do you mean? The dash doesn't light up, or it does but the starter motor won't crank the engine, (etc.)?
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