i have a 2005 cbr600rr and my battery keeps dying when im driving and i stop at a red light or stop sign the bike will turn off and when i turn the bike off it doesn't start sometimes and when i do get the bike started you could hear the battery dying.What could be the problem do i just need a new batter because my batteries weak (im not sure if this matters i have angel eyes could this be draining my battery?) please help me out.

 

what i mean by it turns off is the engine just dies and i have to start it up again but sometimes it wont start and i need to charge my battery and then it will start up but when i stop again it will turn off again.

 

Your battery does nothing while the bike is running. The engine turns the stator, which generates electricity, and sends it to the R\R for regulation and distribution to the rest of the bike (including charging the battery while its not in use). Thus, if your engine is running, your angel eyes (or anything else) are not touching the battery. If your R/R is dead or dying, important thigns like your power commander, CDI, etc will turn off, which could cut your engine off. Also, your battery will never charge, so it will seem like a battery problem.

So, check your R/R. Your bike came stock with a real junky one, and they tend to fry. Check this thread for info on that:

https://cbrforum.com/forum/showthread.php?t=27739

It applies to all bikes.

Also be aware that a bad R\R can permanently KILL your battery, so you may very well have a dead battery AND another problem.

 

i was riding today and the engine turned off twice both times it happened while i was downshifting is this because of my r/r aswell or is there another problem?