====== Li-Ion v Li-Poly ======

There are two main types of rechargeable lithium ion batteries you'll hear about. One is **lithium ion** and the other is **lithium polymer** or **lithium ion polymer**. Both batteries have the same essential chemistry, with small variations on their 

====== 3.6v? 3.7v? 4.1v? 4.2v? 4.35v? ======

====== "RC" type batteries ======

====== Cell phone and Camcorder batteries ======

====== Protection circuitry ======

====== Making packs ======

====== Proper charging ======

====== Safety Tips ======