Seen enough cases of cells failed on the bottom of a stack to make sure I keep mine standing upright.
It really wouldn't be that hard to keep them upright on a wall mount unit. Maybe the form factor may not be as nice, but it would spread the load across more studs lol.
It really wouldn't be that hard to keep them upright on a wall mount unit. Maybe the form factor may not be as nice, but it would spread the load across more studs lol.