http://www.anytimeretail.com/mobiles/mobile-accesories/batteries/erd-er347-samsung-s3500-battery/ Features : High capacity aluminum can SMD & Double controlled PCB Over changing protection Longer life Extra Power to suit the need of business class. Avoid : Exposing Battery to Fire/Moisture/Liquid High temperature. Prolonged charging. Touching Battery contacts with metal Storage above 60deg.C or below -20deg.C Specification Brand : ERD Volts : 3.7 V , Li-ion Battery : for Samsung S3500