G&P Battery problem.
 

im not sure if it is suppose to be like this. i got a charger and i flciked it to 2.0A and it charges the G&P Laser Product 1600 1.2v for around an hour then it goes green. and it only last around 6 mags. is that normal? they said this battery will last me more than a match. but at this rate this battery wont last me too long.

1600MAH should be charged at 1.6... You may have screwed up your battery by charging it over the recommended 1C

the guys at toronto airsoft told me to charge at 2.0a when i called in. because i was unsure, how long should a battery last me because im BA rifle user

Forever. Bolt action rifles don't use batteries.

In an AEG you should be getting 1400-1600 rounds with your 1600mah battery.
G&P is notorious for poor battery quality, it's very likely you have one or more dead cells in your pack.
Buy a new battery, but something GOOD, like ELITE or INTELLECT.