Is that all ?? I see them priced from Rs. 300 to 30000 !!! seems to cost a damned sight more than a phone itself. anyone used it ? How long does it take to charge it ? Can it be charged using a solar thing ?
These are lifesavers, when you need to make that important call and your battery is almost down.
As for cost, the ones priced at 500 to 800 are ok, Chinese made, and will charge your phone maybe 2 times, more than what is required when all you sometimes need is to make just that one important phone call.
My friends import roughly 2 lakh pcs per month, so the demand is quite high for these products