Make all handheld electronic items cell powered

[Zamujasa]

Maybe if instead of the larger power cells they ran off of smaller batteries. I always thought power cells were supposed to be fairly large (cellphone-size or so), which wouldn't really fit in some of the smaller handheld items. That way you also wouldn't run into problems with availability (where anything under 15000 could be easily upgraded by any cell laying around, and anything over is fairly rare to see).