SillyDude

My grandma grew up during the great depression and the only thing I remember about her and food is that she ate a lot of cream of wheat.

If you can I would open it up, find the voltage regulator, then look up its specs. 12.6v might be pushing it a bit but still within spec. Adding a little heatsink if it can fit would set you up a lot better to then run 12.6v frequently.