[Resolved]  Exide - 12M X 2. 5L - 2C — Battery Discharge

I have purchased one Exide battery model 12 M X 2.5L-2C from SHRI MANJUNATHA BATTERY, # 85, 1ST Main, Mount Joy Road, Hanumantha Nagar BANGALORE 560019 on 17.03.08
Battery is discharging frequently, 3 times charged with in 2 months time, I am surprised becasue I used my earlier Battery (Exide) for 3.5 years without any complaint & with out any recharge, now dealer is recharging but not replacing the same.
Pl. help me on this.
(for complaint I checked in exide website but I could not found the same it is very shocking)