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.
Macbook Pro Retina work only with adapter
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Re: Macbook Pro Retina work only with adapter
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Re: Macbook Pro Retina work only with adapter
What mon2 said. I recieved NEW OEM batterys with 0 cycles and they were crap. It is most def that bat.sigpic
MEOWING IN THE IMPOSSIBLE UNIVERSE!Comment
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Re: Macbook Pro Retina work only with adapter
ok i dont have another battery but i will check more voltages and tell you tanks for replayComment
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Re: Macbook Pro Retina work only with adapter
Most batteries for A1425 available on the market are garbage.OpenBoardView β https://github.com/OpenBoardView/OpenBoardViewComment
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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.Comment
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