Structure – Li-Po batteries, as the name suggests, uses a Lithium chemical base and is suspended in a polymer matrix (now you know from where the name ‘Li-Po’ came). The average cell voltage of a Li-Po battery is 3.7 volts, the operational voltage ranging between 3.3v and 4.2v.
Safety – Li-Po batteries are proven to be safe and user-friendly under normal operational circumstances but they are not known to take mishandlings really well. If you were to use Li-Po batteries for your RC helicopters, be prepared to be a careful handler of these batteries.