Badcaps.net Forum
Go Back   Badcaps Forums > Troubleshooting Hardware & Devices and Electronics Theory > Troubleshooting Laptops, Portable, and Mobile Devices
Register FAQ Calendar Search Today's Posts Mark Forums Read

 
Thread Tools Display Modes
Old 06-15-2021, 05:30 AM   #1
nassih
Senior Member
 
Join Date: Oct 2015
City & State: casablanca
My Country: morocco
I'm a: Knowledge Seeker
Posts: 121
Default Macbook Pro Retina work only with adapter

i have this macbook 2012 model A1425 motherboard 820-3462 work normal with adapter but not working with battery.its show charging and the battery has 134 cycle charge and its detected by the system.
nassih is offline   Reply With Quote
Old 06-15-2021, 05:38 AM   #2
nassih
Senior Member
 
Join Date: Oct 2015
City & State: casablanca
My Country: morocco
I'm a: Knowledge Seeker
Posts: 121
Default Re: Macbook Pro Retina work only with adapter

i have this voltages without adapter in:
PPVBAT_G3H_CONN: 11.38v
PPVBAT_G3H_CHGR_R : 11.38v
CHGR_PHASE :11.38v
nassih is offline   Reply With Quote
Old 06-15-2021, 05:41 AM   #3
nassih
Senior Member
 
Join Date: Oct 2015
City & State: casablanca
My Country: morocco
I'm a: Knowledge Seeker
Posts: 121
Default Re: Macbook Pro Retina work only with adapter

Apple Macbook Pro Retina A1425 MLB D1 051-9216 820-3462 (8-8-2012) schematic.pdf
nassih is offline   Reply With Quote
Old 06-15-2021, 05:46 AM   #4
nassih
Senior Member
 
Join Date: Oct 2015
City & State: casablanca
My Country: morocco
I'm a: Knowledge Seeker
Posts: 121
Default Re: Macbook Pro Retina work only with adapter

with adapter in i have 12,56v on PPVBAT_G3H_CHGR_R but goes to 11,38 immediately
nassih is offline   Reply With Quote
Old 06-15-2021, 07:36 AM   #5
mon2
Badcaps Veteran
 
mon2's Avatar
 
Join Date: Dec 2019
City & State: Windsor, Ontario
My Country: Canada
Line Voltage: 110VAC
I'm a: Knowledge Seeker
Posts: 811
Default Re: Macbook Pro Retina work only with adapter

Battery is probably crap. It is a common issue. Check with a fresh battery from a supplier that will take it back if there is an issue.

Remove the battery and post the same voltages.
mon2 is offline   Reply With Quote
Old 06-15-2021, 09:27 AM   #6
Stephen
Meow Meow MEOW!
 
Stephen's Avatar
 
Join Date: Apr 2020
City & State: Atlanta, GA
My Country: United States
Line Voltage: 120VAC 60hz
I'm a: Hardcore Geek
Posts: 233
Default Re: Macbook Pro Retina work only with adapter

Quote:
Originally Posted by mon2 View Post
Battery is probably crap. It is a common issue. Check with a fresh battery from a supplier that will take it back if there is an issue.

Remove the battery and post the same voltages.
What mon2 said. I recieved NEW OEM batterys with 0 cycles and they were crap. It is most def that bat.
__________________

MEOWING IN THE IMPOSSIBLE UNIVERSE!
Stephen is offline   Reply With Quote
Old 06-15-2021, 12:00 PM   #7
nassih
Senior Member
 
Join Date: Oct 2015
City & State: casablanca
My Country: morocco
I'm a: Knowledge Seeker
Posts: 121
Default Re: Macbook Pro Retina work only with adapter

Quote:
Originally Posted by mon2 View Post
Battery is probably crap. It is a common issue. Check with a fresh battery from a supplier that will take it back if there is an issue.

Remove the battery and post the same voltages.
ok i dont have another battery but i will check more voltages and tell you tanks for replay
nassih is offline   Reply With Quote
Old 06-16-2021, 06:33 AM   #8
dellxps15
Badcaps Veteran
 
Join Date: Feb 2014
City & State: Italy
My Country: italy
I'm a: Knowledge Seeker
Posts: 1,283
Default Re: Macbook Pro Retina work only with adapter

without battery, post volts on battery connector after connect adapter.
dellxps15 is offline   Reply With Quote
Old 06-17-2021, 10:28 AM   #9
piernov
Moderator
 
Join Date: Jan 2016
City & State: Valbonne, 06
My Country: France
I'm a: Knowledge Seeker
Posts: 3,191
Default Re: Macbook Pro Retina work only with adapter

Most batteries for A1425 available on the market are garbage.
__________________
OpenBoardview — http://openboardview.org | IRC — #[email protected]
piernov is online now   Reply With Quote
Old 06-30-2021, 01:17 PM   #10
janceth
New Member
 
Join Date: May 2021
City & State: panama
My Country: panama
I'm a: Knowledge Seeker
Posts: 1
Default Re: Macbook Pro Retina work only with adapter

I have a cuestión about this MacBook.
the hardware of the MacBook retina 12" inch 2017 is compatible with hardware of MacBook retina 12" inch 2015
janceth is offline   Reply With Quote
Old 07-04-2021, 12:43 AM   #11
azzidoqsc
New Member
 
Join Date: Jul 2021
City & State: Iasi
My Country: Romania
I'm a: Knowledge Seeker
Posts: 9
Default Re: Macbook Pro Retina work only with adapter

Can you check what is the voltage of the cells ? Sometimes the laptop battery chip gets locked due to worn cells or over discharged cells (battery stored for a long period). The PFF (Permanent Failure Flag) is set and nothing can be done with that battery unless you unseal the chip and clear PFF.

I usually repair laptop batteries in my free time. If you want to open the battery I could guide you how to try repairing it.
azzidoqsc is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Badcaps.net Technical Forums © 2003 - 2021
Powered by vBulletin ®
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 02:04 PM.
Did you find this forum helpful?