2003 Honda CBR 600rr battery problems?

I recently bought a 2003 Honda CBR 600rr and the battery never stays charged and bike won't start. Thinking the battery may be the problem I purchased a new one. Almost a month later the new battery started giving me the same problem & the bike wouldn't start. I know after riding the battery should be charged but after turning off the bike for about two minutes the battery would die again. I disconnected the extra accessories (LEDs etc) & purchased a trickle charger. But why is the new battery still giving me a problem?

Generator, alternator, regulator-rectifier, bad ground.

I'd say altinator

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