1 - Batteries are used, and not brand new, there was no mention of PERFECTLY FINE..a PERFECTLY FINE is a battery freshly manufactured in factory and passed the QA..these are moderately used batteries.
2 - Age is mentioned 8-10 months old. so their intended use is NOT with an apc ups, but any other good brand ups.
3 - it has been mentioned that batteries are not in my possession as "Give reference of Farhan" automatically implies..the number is given of the owner.. instead of a forum post here and waiting for a day to receive reply.. a 2 min call on that number costing 2rs will be easier for you and time saving.. as jamalkhan already did.......just a recommendation..
4 - Asking price was best offer, for people who may buy all of them.. bulk discounts apply everywhere in the world...Single piece price is 6500rs.. a dead scrap battery sells for almost 3k.. therefore the actual price is then only 3.5k per battery.. Do the math.
5 - there is no SI unit to state battery performance as utilization is power has no standard that everyone will always use the same power world wide under same condition... to accurately check its health,, bring your own professional battery load tester device..check it, if it is upto your requirement, buy it, otherwise leave it..simple