I'm locking battery for MXR, do you know anyone for sale?
Perhaps you could clarify why you are looking for a new battery?
If it is for a spare, you are probably out of luck. If you are experiencing an error or it is throwing a code, you might want to give us some details and some of the AOF members might be able to give you some technical advice.
I see you are listed as being in So. California. We have quite a few talented and experienced members in that locale.