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The March 2015 update of Apple's 13" MacBook Pro Retina Display, model A1502, features fifth-generation Intel Core i5 and i7 processors and introduces the Force Touch trackpad.

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Battery not charging Indicates 7.41V


I was having an issue with my logical board and I replaced it, but the Macbook was not working for about 5 months and the battery now reads 7.4V and the OS indicates battery bit charging as it already under voltage.

The battery is 62 cycles, Health was ~93% was working great before the replacement, Battery Age 2.9 years.

Is there any way to charge it with eternal supplier?

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Hard to understand exactly your question, no idea of what an “eternal supplier” would be either. However, such batteries often times do not survive longer periods of time without any charge. When voltage drops below a threshold it starts deteriorating and oxides start building up; a chip on the battery logic side detects the voltage has dropped below a safety level and locks down charging circuit. Even if you were to force charging with a PSU and restore correct voltage, the chip would still prevent make it short, battery unfortunately can be trashed, so far there are no known ways to bypass this security feature.

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Check if your charger has the right Power (Watts) for your Computer and see if charger indicator is in green or ambar.

In my crazy laboratory i tried to charge the battery externally butttttt the chip on the battery does not support that kind of charge and chip just burned. If you want to do that you have to remove the batteries cells from the chip and charge each cell and put back. (Unpractical and wast of Time).

Order and new Battery and Save Time and Stress.

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Mahmoud Shokry estará eternamente agradecido.
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