Original Mobile Phone Battery for Nokia Lumia 830 with Li-Ion; 3.8 V; 2200 mAh

if this was an original battery i don't know how we ever use our phones. not much better than the battery i was replacing. i am not on the phone 24/7 and by the evening it had run out of charge. I hav returned the item. i chose this company(£ 21+) over the others inal item. charging £8, thinking I would be gettin g an orig