Fix Your Stuff Community Store

A1706 / EMC 3071—Released in November 2016, this 13" Macbook Pro introduces the OLED Touch Bar. Features a dual-core "Skylake" Intel Core i5 CPU and four Thunderbolt 3 ports.

238 Questions View all

Options

Battery Low voltage Cut out. Charge externally

I bought a new battery for my macbook pro 2016 touch bar 13" (A1706) and it's not charging. The OS says I have to replace the battery.

I've measured the voltage coming from the battery and it says about 2.7 volts.

I've read somewhere that I might have to charge the battery externally until the voltage rises above the cut out voltage so the mac can recognise the battery and start charging it.

Does anyone have an idea how to charge it externally?

Answer this question I have this problem too

Is this a good question?

Yes No
Score 0
Add a comment

1 Answer

Filter by:
Most Helpful Newest Oldest
Most Helpful Answer

Options

No, you don't (nor can you) charge the battery externally.

Lets back up here... How was your original battery was damaged? This is such a new system I can't see needing to replace the battery from age or being worn out.

Did you have a liquid spill? If you did then it's likely the charging logic on the logic board is damaged.

Update (01/19/2018)

The SMC within the system controls the charging not the battery its self. When you do a SMC reset it will allow the system to charge the battery. The onboard cutout only applies to the failure of a battery cell. More likely you have other issues within the charging logic.

You'll need to find a copy of the schematic & board layout drawings (X362 - 820-00239) to trace out the circuit.

Was this answer helpful?

Yes No
Score 1

4 Comments:

I'm building this macbook from parts I bought online. I bought a topcase assembly which had the battery already included.

I've measured the pins on the logic board that connect to the battery and it says 13V so the charging logic on the logic board should be fine.

I've measured the output of the battery again and it now says 0V.

I've found some information about undervoltage lockout here:

https://www.instructables.com/answers/I-...

by

The instructables site info is not really correct.

by

Ok, so then I'll need a new battery. Is there a reliable site where I can get one?

by

As the system is so new I don't know of anyone stocking parts for it yet.

by

Add a comment

Add your answer

Lukas Guy will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 0

Past 30 Days: 2

All Time: 864