Q: I bought a new PSP, slim.. is it SAFE to play with it while Charging?
A: It is perfectly safe. While you play, it charges. Doing this will make the battery life extend also! Each time you use the PSP, the battery life loses it's full life. Playing while charging is a great way to save your battery (And the cost for a new battery) Also, you can take out the battery and play it if the charger is put it. It is an external power source.