[Resolved]  Exide Battery (Invared500+) — Low Back UP

I purchaged Exide invared IR 500+ battery along with microtek sine wave 800EB invertor on 19.03.2008.
details as under:-
1.BATTERY------ INVARED 500+
2.CUSTOMER.---- [protected]
3.INVOICE.[protected] [protected]
4.DATE.[protected] 16.10.2007
5.DELV.PLANT[protected] LUCK
6.BATCH NO.[protected]V7
7.SERIAL NO.[protected]
8.DATE OF PURCHASE[protected].03.2008
Now the back up of battery is too low, hardly runs 02 celling fans & 01PC(LCD).kindly do needful to avoid problem.