No battery available, Temporary fix

Question

Hi everyone, I'm an owner of Macbook Pro Early 2011.
MTLion 10.8.2
I have been having a problem with "No battery available" or"X" signed on the battery recently.
If you want to know how i temporary fix it just skip to the ->(TEMPORARY FIX) section.
The situation is, if i use the Macbook without connecting to the magsafe sometimes the Macbook will suddenly turn itself off and will nerver turn on again without the magsafe adapter. When the Macbook is on with magsafe, the battery will show X signed and says no battery available and the Macbook will become really slow. Also when I press the battery indicator at the left side of the Macbook it will just beep for few times as if there were actually no battery inside.
I have gone through a lot of topics about this issue and have been trying almost every possible solutions, the best one so far is resetting the SMC.
The issue here is My Macbook Pro Early 2011 is considered as  A battery that I should not remove on my own,,fine I followed the instructions
Note: Portable computers that have a battery you should not remove on your own include MacBook Pro (Early 2009) and later, all models of MacBook Air, and MacBook (Late 2009).
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer. 
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.
But then It's still the same "X" no battery available.
->(TEMPORARY FIX)
I was in a rush so finally I decided to follow the instructions for the removeable Macbook battery models.
Resetting the SMC on Mac portables with a battery you can remove
Note: Learn about removing the battery on MacBook and MacBook Pro.
Shut down the computer.
Disconnect the MagSafe power adapter from the computer, if it's connected.
Remove the battery.
Press and hold the power button for 5 seconds.
Release the power button.
Reconnect the battery and MagSafe power adapter.
Press the power button to turn on the computer.
But for me, I have to take the bottom aluminum case out manually. I unplugged the battery cable and did the 5 seconds and replugged it in.
After that the Macbook became normal. I was so happy when i fixed it for the first time.
Now the thing is after the first fixed around one week it happened to me again the "X" problem. So I fixed it again by opening the case, replugged the battery, done.
After that this symptom keeps on coming more frequently, eventually one "fix" can last for only 2days and it will happen to me again.
What should i do now? Any advice?
The apple store is quite far from where i live so I'm posting here first may be someone will come up with a better suggestion.
Btw, the battery had already been replaced 2 months ago.
I have to replace it because the first battery blown up when I plugged the magsafe to the Macbook.
Right now I'm worrying, Is it something about Battery Sensor?
I bought my Macbook Pro from Saudi Arabia but currently I'm using it in China.
Here is the current info when the problem occurs from About;
Battery Information:
  Charge Information:
  Charge Remaining (mAh):          0
  Fully Charged:          No
  Charging:          No
  Full Charge Capacity (mAh):          0
  Health Information:
  Cycle Count:          0
  Battery Installed:          No
  Amperage (mA):          0
  Voltage (mV):          0
System Power Settings:
  AC Power:
  System Sleep Timer (Minutes):          180
  Disk Sleep Timer (Minutes):          10
  Display Sleep Timer (Minutes):          10
  Wake on AC Change:          No
  Wake on Clamshell Open:          Yes
  Wake on LAN:          Yes
  Current Power Source:          Yes
  Display Sleep Uses Dim:          Yes
  GPUSwitch:          2
  PrioritizeNetworkReachabilityOverSleep:          0
  Standby Delay:          4200
  Standby Enabled:          0
  Battery Power:
  System Sleep Timer (Minutes):          60
  Disk Sleep Timer (Minutes):          10
  Display Sleep Timer (Minutes):          10
  Wake on AC Change:          No
  Wake on Clamshell Open:          Yes
  Display Sleep Uses Dim:          Yes
  GPUSwitch:          2
  Reduce Brightness:          Yes
  Standby Delay:          4200
  Standby Enabled:          0
Hardware Configuration:
  UPS Installed:          No
AC Charger Information:
  Connected:          Yes
  ID:          0x0100
  Wattage (W):          85
  Revision:          0x0000
  Family:          0x0085
  Serial Number:          0x0004cbc8
  Charging:          No
Thank you,
Marcus

Answer 1

Hi Marcus111,
QUESTION:
I would like you to ask, by "they replaced the battery connector port" you mean they replaced the MagSafe DC-In board (see the picture, the device in the right hand http://d3nevzfk7ii3be.cloudfront.net/igi/UnXMVB6e4eFgkwFY.huge) or simply said the part between the logic board and the MagSafe connector with the LED indicator, right?
MY SYMPTOMS:
I have very similar symptoms with the same MBP 13'' unibody early 2011 model. In Addition to what you mentioned, I am only able to use external (bluetooth) keyboard and mouse since the built-in keyboard does not work very well (just in the rEFInd menu, but very slowly). Moreover, I am only able to start the system when the trackpad is disconnected from the LogicBoard. The system runs very slowly by default, but if I do a little trick -- the SMC reset during which I disconnect the MagSafe, reconnect, with 5 second intervals among the steps, the system starts and runs pretty fast. The problem is that if I do it as described, the battery is not recognized in the OS X. On the top of that, as the trackpad is disconnected and keyboard does not work well I can only use external bluetooth keyboard and mouse (or USB). When the trackpad is connected, the fan starts turning but the MacBook does not start at all...just the white diode is blinking and the hardrive starts and stops spinning over and over again (like if there were not enough power).
Regards,
XanthiX