Battery level low

[Holy Roller]

This morning the bike wouldn't start had to jump it.
Checked the battery and the fluid level was wayyyyyy down. I filled it a month ago after I had to jump start the girl before work.
Any ideas why this would happen? :o
Or should I just buy another battery.

[Kickaha]

Get the charging rate checked, if it is overcharging it can cause this to happen.

[merv]

Yep tends to be a sign the reg/rec is going bad, a common problem on bikes.

Either that or your battery is way too old and done for.