Battery, Power, Deep Sleep and Spotlight problems after 10.9.4 update

Question

Hi, I have a Macbook Pro 8,1 13in (Late 2011). I updated to the latest version of Mavericks (10.9.4) and iTunes on Sunday, right after that my macbook started to goes into Deep Sleep after closing the lid, even when the battery was 80% of charge. My battery normally lasts for almost 5 hours. After it went to deep sleep, the power bottom does not respond. Also, I have noticed that spotlight process in Monitor was consuming so huge amount of resources. This problem persists in Boot Camp. There is no way to turn the machine up without plugging it to the power cord. Sometimes it charges the battery as usual, sometimes it does not recognize the battery. Suddenly, the mac goes into sleep mode while I'm using it.
I have researching and troubleshooting in order to fix this but no solution. I have reset the PRAM and SMC. I made a backup of my files and installed Mavericks from the ground with external storage in order to erase the entire disk, no solution. I made an Internet Recovery and downgraded it to Lion, it worked for 2 hours and then I upgraded again to Mavericks (10.9.0) and the same problem came again, the upgraded to 10.9.4 and no solution at all.
I have searched on internet and there are other people experiencing this problem but nobody is able to bring a valid solution.
This is my battery's health:
Battery Information:
  Model Information:
  Serial Number: 9G1450LRJD3MA
  Manufacturer: DP
  Device Name: bq20z451
  Pack Lot Code: 0
  PCB Lot Code: 0
  Firmware Version: 201
  Hardware Revision: 2
  Cell Revision: 158
  Charge Information:
  Charge Remaining (mAh): 3204
  Fully Charged: No
  Charging: Yes
  Full Charge Capacity (mAh): 4859
  Health Information:
  Cycle Count: 931
  Condition: Normal
  Battery Installed: Yes
  Amperage (mA): 2406
  Voltage (mV): 12273
System Power Settings:
  AC Power:
  System Sleep Timer (Minutes): 10
  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
  PrioritizeNetworkReachabilityOverSleep: 0
  Standby Delay: 4200
  Standby Enabled: 0
  Battery Power:
  System Sleep Timer (Minutes): 10
  Disk Sleep Timer (Minutes): 10
  Display Sleep Timer (Minutes): 2
  Wake on AC Change: No
  Wake on Clamshell Open: Yes
  Display Sleep Uses Dim: Yes
  Reduce Brightness: Yes
  Standby Delay: 4200
  Standby Enabled: 0
Hardware Configuration:
  UPS Installed: No
AC Charger Information:
  Connected: Yes
  ID: 0x0100
  Wattage (W): 60
  Revision: 0x0000
  Family: 0x0085
  Serial Number: 0x008d9c78
  Charging: Yes

Answer 1

Reseting the NVRAM/PRAM doesn't solve my problems.
Hi, since you have performed NVRAM /PRAM reset, try:
Intel-based Macs: Resetting the System Management Controller (SMC)
and if still issues persist,  try: OS X: What is Safe Boot, Safe Mode?  
Cheers