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Current version by: Ricardo Carrillo ,

Title:

No Battery recognized and only one battery led indicator always on

Text:

Hello all,
 
I tried to turn on my laptop and it didn’t start, at all by any means, after reading a lot try to and see the causes, I tried the SMC but it didn’t work, I ended opening my laptop and removing the logic board to clean it up, after that My laptop turn on but I noticed it didn’t recognize the battery anymore, I reopened the laptop to verify I didn’t left any cable unplugged but it seems everything is well connected. My laptop still only working with the charger only.
 
The other weird thing I’m seeing and I have not had luck to find anything about is that one of the battery indicators led in the left side is always on, and by always I mean always even when I turn off the laptop and remove the charger of my laptop. (See Image Below)
 
As final comment, I also checked the voltages measures in my battery, I haven’t found the schematics for my laptop but I got readings of 12, 5 and 3.3 Volts in my battery, there is one pin that reads 2.5 Volts not sure if is the communication bus because I don’t have the schematics.
 
I’m looking for advices to fix my laptop, even if it is an old device it works great after a RAM and SSD Upgrade.
 
Any advice? - Thank you beforehand.
 
[image|1876964]
 
=== Update (10/20/2019) ===
Dan I really appreciate your quick answer. Thanks :)
 
Tomorrow I will check the module for the battery indicator and will post what I find.
 
For the battery, thanks for the suggestion, see my screenshot below. Thanks beforehand for the interest on helping me and any comment you may add will be loved.
 
[image|1877166]
 
Another weird thing I see and I don’t understand is below, coconut says the battery is connected but also that is not connected. Thanks
 
[image|1877169]
 
Another weird thing I see and I don’t understand is below, coconut says the battery is connected but also that is not connected. Thanks=== Update (11/09/2019) ===
To anyone can help me :)
Another weird thing I see and I don’t understand is below, coconut says the battery is connected but also that is not connected. Thanks=== Update (11/09/2019) ===
To anyone can help me :)
 
[image|1877169I just bought a new battery but not a new battery checker module, I still having my battery issue, my laptop does not recognize it, the battery third indicator led turns green always and my laptop does not find anything about the battery. See attached coconut battery print screen. Any idea someone can guide me in order to fix my laptop?

Thank you guys beforehand.

[image|1914541
]
[image|1877169I just bought a new battery but not a new battery checker module, I still having my battery issue, my laptop does not recognize it, the battery third indicator led turns green always and my laptop does not find anything about the battery. See attached coconut battery print screen. Any idea someone can guide me in order to fix my laptop?

Thank you guys beforehand.

[image|1914541
]

Device:

MacBook Pro 1513" Unibody Late 2011
MacBook Pro 1513" Unibody Late 2011

Status:

open

Edit by: Ricardo Carrillo ,

Title:

No Battery recognized and only one battery led indicator always on

Text:

Hello all,
 
I tried to turn on my laptop and it didn’t start, at all by any means, after reading a lot try to and see the causes, I tried the SMC but it didn’t work, I ended opening my laptop and removing the logic board to clean it up, after that My laptop turn on but I noticed it didn’t recognize the battery anymore, I reopened the laptop to verify I didn’t left any cable unplugged but it seems everything is well connected. My laptop still only working with the charger only.
 
The other weird thing I’m seeing and I have not had luck to find anything about is that one of the battery indicators led in the left side is always on, and by always I mean always even when I turn off the laptop and remove the charger of my laptop. (See Image Below)
 
As final comment, I also checked the voltages measures in my battery, I haven’t found the schematics for my laptop but I got readings of 12, 5 and 3.3 Volts in my battery, there is one pin that reads 2.5 Volts not sure if is the communication bus because I don’t have the schematics.
 
I’m looking for advices to fix my laptop, even if it is an old device it works great after a RAM and SSD Upgrade.
 
Any advice? - Thank you beforehand.
 
[image|1876964]
 
=== Update (10/20/2019) ===
Dan I really appreciate your quick answer. Thanks :)
 
Tomorrow I will check the module for the battery indicator and will post what I find.
 
For the battery, thanks for the suggestion, see my screenshot below. Thanks beforehand for the interest on helping me and any comment you may add will be loved.
 
[image|1877166]
 
 
 
Another weird thing I see and I don’t understand is below, coconut says the battery is connected but also that is not connected. Thanks
 
[image|1877169]

Device:

MacBook Pro 15" Unibody Late 2011

Status:

open

Edit by: Ricardo Carrillo ,

Title:

No Battery recognized and only one battery led indicator always on

Text:

Hello all,
 
I tried to turn on my laptop and it didn’t start, at all by any means, after reading a lot try to and see the causes, I tried the SMC but it didn’t work, I ended opening my laptop and removing the logic board to clean it up, after that My laptop turn on but I noticed it didn’t recognize the battery anymore, I reopened the laptop to verify I didn’t left any cable unplugged but it seems everything is well connected. My laptop still only working with the charger only.
 
The other weird thing I’m seeing and I have not had luck to find anything about is that one of the battery indicators led in the left side is always on, and by always I mean always even when I turn off the laptop and remove the charger of my laptop. (See Image Below)
 
As final comment, I also checked the voltages measures in my battery, I haven’t found the schematics for my laptop but I got readings of 12, 5 and 3.3 Volts in my battery, there is one pin that reads 2.5 Volts not sure if is the communication bus because I don’t have the schematics.
 
I’m looking for advices to fix my laptop, even if it is an old device it works great after a RAM and SSD Upgrade.
 
Any advice? - Thank you beforehand.
 
[image|1876964]
 
=== Update (10/20/2019) ===
Dan I really appreciate your quick answer. Thanks :)
 
Tomorrow I will check the module for the battery indicator and will post what I find.
 
For the battery, thanks for the suggestion, see my screenshot below. Thanks beforehand for the interest on helping me and any comment you may add will be loved.
 
[image|1877166]

Device:

MacBook Pro 15" Unibody Late 2011

Status:

open

Original post by: Ricardo Carrillo ,

Title:

No Battery recognized and only one battery led indicator always on

Text:

Hello all,

I tried to turn on my laptop and it didn’t start, at all by any means, after reading a lot try to and see the causes, I tried the SMC but it didn’t work, I ended opening my laptop and removing the logic board to clean it up, after that My laptop turn on but I noticed it didn’t recognize the battery anymore, I reopened the laptop to verify I didn’t left any cable unplugged but it seems everything is well connected. My laptop still only working with the charger only.

The other weird thing I’m seeing and I have not had luck to find anything about is that one of the battery indicators led in the left side is always on, and by always I mean always even when I turn off the laptop and remove the charger of my laptop. (See Image Below)

As final comment, I also checked the voltages measures in my battery, I haven’t found the schematics for my laptop but I got readings of 12, 5 and 3.3 Volts in my battery, there is one pin that reads 2.5 Volts not sure if is the communication bus because I don’t have the schematics.

I’m looking for advices to fix my laptop, even if it is an old device it works great after a RAM and SSD Upgrade.

Any advice? - Thank you beforehand.

[image|1876964]

Device:

MacBook Pro 15" Unibody Late 2011

Status:

open