UPS & Laptop Battery

I am searching for UPS battery (CSB/BASE/POWERSAFE 7.2 AH-12V) for my PCM 600VA UPS (Powercom) in Mumbai.

Where can I get it ? and what is the price ?

I am also looking for battery for my Acer Aspire 5920 - Can I get original Battery ? What is the price and warranty ?

Please Help !!