A battery more expensive than others, HS supplied from the start

I bought this mAh battery with a higher number than the original one to get a better autonomy and because my original battery began to show signs of fatigue. Total races I applied what they advocated in the manual, a full load 8 to 10 hours continuous and complete unloading. Then again a full load. The life of a load is hard to spend two days while I used very little of my phone (no wifi, no Bluetooth) my old battery original HS I found over 3 days without any problem. Before this failure I almost wanted one week without recharging.