Battery Comes in loose packing as shown in image,will be sent by secured pack by us.
For Batteries it is compulsory that after receiving the battery put into your phone and plug into charge for 2-3 hours continuous charge in switch off mode for first time not less than and not more than that. And after that charge your mobile normally, after 3-5 full charge-discharge cycle battery gives their full backup.
Battery backup depends upon many factor like network, software version, usage/handling style,etc. In android phone backup mostly gives around morning till evening in normal usage if fully charged.