Subject: Working power from battery? misc power questions

This has a few questions that need answering.

a mobile phone battery has 3.0V and 1.5 maH written on it.
firstly question is is there a difference with 1.5 mA(Amps) and 1.5 maH?
From these variables can i work out the power the battery produces?
or i need a few more variables like, resistance etc.
basically i want to know what wattage of bult will drain the battery. (i 
know most bulbs will) But i wondering which will drain the battery better, 
using a higher watt bulb or a low watt bulb (thats why i need to work out 
the power to stop this bulb form blowing)
it seems after the battery is drained. leave it a day or two - re-connect 
the bulb, the battery lights up the bulb before dying, even thought it's 
been drained before.
where did it get the power from? (it slowly recharge over time?)

Re: Working power from battery? misc power questions