Macbook Pro Retina work only with adapter

[nassih]

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]

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]

Re: Macbook Pro Retina work only with adapter

[nassih]

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

[mon2]

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.

[Stephen]

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.

What mon2 said. I recieved NEW OEM batterys with 0 cycles and they were crap. It is most def that bat.

[nassih]

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.

ok i dont have another battery but i will check more voltages and tell you tanks for replay

[dellxps15]

Re: Macbook Pro Retina work only with adapter

without battery, post volts on battery connector after connect adapter.

[piernov]

Re: Macbook Pro Retina work only with adapter

Most batteries for A1425 available on the market are garbage.

[janceth]

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

[azzidoqsc]

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.