Hello, I want to buy a battery for my quadcopter that i will build. I am noob and I dont know what to buy so please help me somehow. The only thing I know is that the important thing is mah and 'c'. Sooo i think a battery ~3000mah an d25c will be fine for 10 min flight? Am i wrong? is there is something else that I should concider ? 
It would be awesome if someone of you could post some links ...
ooo i think a battery ~3000mah an d25c will be fine for 10 min flight? Am i wrong? is there is something else that I should concider ?
The battery is chosen based on the motor and props . The props are chosen based on the motor and RTF (ready to fly) weight of the craft. Without knowing the weight, motor & props you plan to use, no one can tell you what battery to buy.
These might be useful - I cannot vouch for them personally though:
http://blog.oscarliang.net/how-to-choose-motor-and-propeller-for-quadcopter/
Why do I always get suckered in to driving a search engine on someone else's
behalf BTW?
It's http://www.ecalc.ch/ that you want for calculating motor/battery/prop/etc. combinations.
I already have:
DJI 2212 920KV Brushless Motor
4Pcs 10x4.5" 1045 CW&CCW Propeller
Replacemen?t dji phantom 8045 props propeller 8X4.5 CW &CCW
I think that I may need to change some of them so dunno if they are good for quadcopter. Anyway BASED ON the above can I have some suggestions? :?
Please don't make everyone google part numbers, include relevant links or the
actual specs that matter.
I wish I knew what is important and what is not 
Anyway, I think i have to upload soem more photos. ok...
That's why you have to give us all the details you have, not just a part number!! We can
interpret the data, but you've got to make it accessible to our impatient collective gaze 
Go and read the sticky thread that says "read this before posting" or some such....