[MrForbes]

I would not do it just because it will be cumbersome to remove and install it between matches for charging. There's a "handle" on top of the battery, so you can grip it easily, how will that work if it's upside down?

I guess I'm getting old, I have no sense of humor about battery position and mounting...I like them to be secure, easy to access, easy to connect/disconnect, etc.