LVC/LVA for a 1 Cell LiPo?

[rawfuls]

Hey guys, I have a quick question.

Since I'm making a USB charger, I was thinking of using a single cell lipo, over 2 or 4 double A's.

Using a single cell lipo to power a USB charger directly would surely be moe efficient an last longer than standard AAs.

Now if I DO use a single cell, is there any way I can mod, or pick up a LVC, afterall, I don't want something smoking on me during class, nor so I want a puffed lipo in class!

Any help/suggestions/advice would be appreciated!