Had after my original Samsung battery after 2 years held only 8 hours, I've decided to try this from Dino Cell! So battery unpacked and off you clean it. From working out he was half charged. Full load and run the thing down to the last left. After 18 hours, then the battery also said "Goodnight"
Now I put the phone to factory settings and lo and behold, the mobile phone is again longer than 24 hours and still do not need to load !!