Should the battery show voltage on main + points?
Hi, I just replaced my battery on my mbp. The little control board for the battery has pin outs for 5v 8v+ etc. and of course the main + and - points that actually get connected to the logic board. Should I be seeing voltage on the main + point? I see almost 12v on the 8v+ point of the battery control board but not the main +. Does it need to be connected to the logic board for it to spit out voltage??
Update (08/25/23)
Let me rewind, couple days ago my laptop wouldn’t boot, no water damage, so I figured might be the battery which was already becoming terrible. So I bought one from ifixit, installed it and still no boot.
So I purchased a usbc meter to check voltages. When the battery is installed I get no power going in. When the battery is taken off I get the “dreaded” 5v in only.
However my original question was, should I see voltage on the main positive terminal of the battery when disconnected from the computer. View photo (it would be under the screw of course) because I have 0v on the main terminal of the new battery but on the smaller check points of the battery I get 11+v
Esta é uma boa pergunta?
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You need to tag both contacts with your digital volt meter.
But that doesn’t explain your condition! You stated the in-line power meter is not showing any current going in is that correct? If so the logic boards charging logic has a problem! Which could be the port you are using the port assemblies connection to the logic board as well as the logic within the logic board.
This will take a bit of tracing out from the socket to the logic board and then using a set of schematics and board views checking the logic.
The battery often has very little stored energy so what it might have had could have been drained away.
por Dan