By the way..I'm glad you got your batteries..you have to synchronize them..
Yes it is, Im following the instructions alsong with something I read online.
"Calibrating" your battery is important. You're not really calibrating the battery itself, but teaching Android to expect longer battery life. Your phone's kernel tells the OS to expect a ~3200maH battery, and Android displays a battery percentage based on that, even when a 7500maH battery is installed.
Due to this, one problem I've run into is that the phone will not display the proper battery percentage. During the first calibration cycle, my phone lasted another 10-12 hours while still reading 1%.
Calibration process:
1. With the phone powered OFF, charge to 100%. Unplug.
2. Power ON the device. If battery percentage is not yet 100%, charge the phone to 100%.
3. Unplug the device and allow it to drain completely under normal usage until the phone shuts off. This will take a while.
4. Power on the phone again and again drain completely until the phone shuts off for a second time.
(Note: Deep discharge of a Li-Ion battery IS harmful, but this process is not considered a deep discharge. Circuitry in the battery itself prevents this. Do not fear)
5. Repeat steps 1-4.
Instructions that come with the battery say to do this process three times. I've read some users only having to do this once, but I personally did this five times until the correct battery percentage was displayed.
This is a long and tedious process. The only other solution I have found is to flash a custom kernel that supports 7500maH batteries, which I have not tried.
Even if you don't perform this process, your battery life will increase greatly, but you won't have reliable battery stats. Speaking of battery stats, some users say that deleting batterystats.ini and clearing cache will solve this problem, but really it will just reset the entire process and the phone will again display battery life expecting a 3220maH battery."