It won't fall apart.  Just remember drive slow, and remember to drive only to get to or from a fight.  If you can shoot them where you are, then don't be driving. 

As to charging, many of us use a battery isolation switch with an external charge jack to eliminate low battery drive offs, and the need for opening the tank to charge.  There's a schematic on SCAT's website for how to wire it up.  If you come to battleday, you'll see many different ideas. 

For my Tigers, I bought the optional driver/radio operator hatch hinges, and installed the on/off/charge switch and jack on a small board directly underneath the radio operator's hatch.