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Solution for bent pins in battery connector (on logic board)?

I have a A1286 2.66GHz 15" Unibody MacBook Pro (Mid-2010). While replacing the battery, I guess I seated the connector at a bit of an angle, and I severely bent the right-most pin (#9).

I tried to straighten it with a couple of screwdrivers (and did get it to stand upright again), but since the pin had folded over onto itself, there's a weak spot in the middle that causes it to bend again if I try to plug in a battery.

I took it to Apple, and (of course) they say I need a new logic board. I'm not so sure...

I found a diagram in another thread on this site that says the battery pinout is as follows:

1 +12V

2 +12V

3 +12V







Assuming this is correct, the one I bent is a ground pin. Now, on to my questions:

1. Could I simply break the pin off and plug in the battery with only 8 pins connected? It's one of 3 ground pins, and I'm thinking there might be some redundancy there.

2. If No to #1, would it be possible to harvest a battery connector (I'll make sure it's the same connector) from another MBP logic board and solder it onto mine? I don't have experience soldering, but since Apple says the logic board is shot anyway, I'm willing to try.

Side question: Will the laptop work under wall power with the battery removed? I'm guessing so, but I haven't tried to boot it up yet and don't want to damage anything.

Thanks in advance for your help!

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Apple are retards as usual, replacing a board because of a THROUGH HOLE SOLDERED CONNECTOR!

Just use tweezers to bend the pin back on the weak point. If it breaks it is just a ground pin so who cares, there are other ground pins anyway.

You could always cut open the wire that goes to the damaged pin and attach it to another wire that is ground, and then wrap it in something.

Anything other than follow Apple's advice, which, as usual, is complete

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Thanks for the response. I was thinking of extending the #9 wire and soldering it straight to the point on the board behind the connector, but maybe I'm creating too much work for myself.

If you're familiar with it, could you confirm I have the pinout correct (and I'm not reading it backwards)? I'm counting from the left on the pins themselves (logic board side)... if you count from the left on the battery side, it would be the reverse and the one I broke would be a +12V pin, which might make things more complicated.

I also thought about your suggestion, of simply splicing together the 8 and 9 wires before they reach the connector, but I don't know if they board would read that strangely. (Does current flow through ground connections? Forgive my ignorance.)

Do you think the system would read an error if I just didn't use that #9 pin? If I just broke off the pin and the #9 wire was making no connection, that is.

Thanks for your help!


The board itself does not know whether pin 8 or pin 9 are different. Ground is ground is ground.

In audio you have signal ground and audio ground. Here we are not dealing with that, you just have GROUND!!

If ground is ground, then board will know no difference. Tie together and be done with it.

And stop breaking pins.


Ha. Thanks so much for your help. I really appreciate it. I'll be very careful seating connectors in the future.


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