CodLBi wrote:
My battery performance got a lot better after inserting a new Sim card.
When I recieved my iPhone 4s I used the Sim card from my previous iPhone and the battery would lose approximately 10% per hour. With the new Sim card the battery loses 2% per hour (no tweaks to save battery-power). The CPU load however still remains above 51% compared to 12% for the iPhone 4 (standby mode). The battery performance is not as good as the iPhone 4 but very acceptable and OK for me.
iOS 5.0.1
Carrier: T-Mobile Netherlands
Thank you RogerfromFrance, you provided the solution that works for me.
glad to know i helped you.
Although i am now satisfied with my 4S, however, I continued
to read messages here and a have learned some interesting
things: Most of those who have solved their problems
using a new SIM card is because they used before
their old card may be downsized to micro Sim format.
On page 443 are displayed 2 pictures showing differences.
Someone has also explained that problem is comming
from the card reader wich could be not the same on all
4S.