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Released October 24, 2011 / 2.2, 2.4, or 2.5 GHz Quad-core Intel Core i7 Processor

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Battery Is Not Charging

Block Image

new battery

new charging wire

new charging port

i have voltage in battery connector on motherboard

SMC reset

GPU - switch off

but... no battery charge, no light on charge wire, can't start without battery.

Plug\unplug charger: https://youtu.be/7rnb9v6DNEo



Battery Information:


  Model Information:

  Serial Number: D861015004NDGDL3T

  Manufacturer: SMP

  Device Name: bq20z451

  Pack Lot Code: 0

  PCB Lot Code: 0

  Firmware Version: 2

  Hardware Revision: 00aa

  Cell Revision: 2

  Charge Information:

  Charge Remaining (mAh): 544

  Fully Charged: No

  Charging: No

  Full Charge Capacity (mAh): 7800

  Health Information:

  Cycle Count: 1

  Condition: Normal

  Battery Installed: Yes

  Amperage (mA): -25

  Voltage (mV): 11350


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

  GPUSwitch: 2

  Hibernate Mode: 3

  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

  GPUSwitch: 2

  Hibernate Mode: 3

  Reduce Brightness: Yes

  Standby Delay: 4200

  Standby Enabled: 0


Hardware Configuration:


  UPS Installed: No


AC Charger Information:


  Connected: Yes

  Charging: No


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I’ve just been fixing one of these tonight if theres no light on the charge wire and you’re sure the charger is good its likely a blown u7000 but its worth changing q7030 and q7031 while you’re here.

I replaced a u7000 tonight the tools I used are a MUSTOOL G1200, 858d hot air ‘station’ max heat and low air, soldering iron with 900m-t-s bent tips, leaded solder and fine tips on my multimeter. I have experience with bits of hot air soldering and its at the limit of my abilities and very easy to create a dry joint.

I appreciate this is a long and complex answer but I’d prefer the information to be here for the next guy so they dont get told to repeatedly reset the smc.

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Aleksander Aleksandrov crwdns2934231:0crwdne2934231:0
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