Ok - so you obviously know how to calculate the maximum demand of your power consumption.
There's a thrust test here if you want to delve a little deeper into your motors capabilities.
The maximum amps the battery can deliver is (the capacity in Ah) * (C rating)
So a 1500mah 25c Battery will deliver a maximum continuous discharge of: 1.5*25 = 37.5a
As long as the continuous discharge is above what you need for your motor/prop combo you should be ok.
Some things to bear in mind though.....
1) The C rating of a battery isn't always an honest representation of what it's capable of. I have some 25c batteries that definitely don't keep up as they should. The voltage sags massively under load meaning less power available.
2) A higher, over specced, C rating tends to mean that the battery will keep delivering under high drain situations like punch outs. but......
3) Higher C rated batteries weigh more - so you have to balance that against the thrust available from the motors. No point in running a 150c battery if you only need 25.
If this is your first quad, I wouldn't worry too much. It's unlikely that you will be stressing the batteries as you are unlikely to be running at high throttle for large amounts of time.
Any batteries around or above 35c and between 1300mah and 1800mah will be best for you I think. There won't be a massive amount of difference in flight time as the extra weight of the larger batteries will mean a higher power draw.
Get a few though. You will only get around 5 or 6 minutes flight time per battery at the maximum.
Finally, not sure if your kit comes with one or if the flight controller is set up with a buzzer but if it doesn't - get a lipo alarm. It will stop you over discharging the batteries and knackering them. Don't fly them until the quad drops out of the sky, it will shorten their life very quickly.