The battery's negative and positive connections are distinctive from the other three signal lines, so it's easy to figure out which is which. Here's what the schematics show for the battery connector.
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[image|2774386]
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[image|2774342]
Now if we look at the physical connector for the battery itself on the motherboard, we'll see five pins.
[image|2774367]
Going by the schematics, we're going to make an educated assumption that the pins on the physical connector are in the same order as that shown on the schematics. This is backed up by the fact that the three outer connectors - two on the left and one on the right - are very skinny, indicating they are signal paths and not power paths. Pins 3 and 4 are really fat, saying that they carry power.
So, from left to right, we have the following signals.
# HDQ
# THERM
# PACK_NEG
# PACK_POS
# SENSE
So battery negative is the middle pin and battery positive is the one to the right of it. Double-check the polarity of the two pins on the battery with a voltmeter.
BTW, be vewy vewy caweful charging a lithium battery. Done wrong, they can literally explode. Not kidding here, dude; ask the owner of a Galaxy Note 7.
I don't have schematics for the iPad Air 3, so I'm going off the plans for the iPad Air 2, which I do have drawings for. I don't think it's going to be difficult though, since the battery's negative and positive connections are distinctive from the other three signal lines.
+
The battery's negative and positive connections are distinctive from the other three signal lines, so it's easy to figure out which is which. Here's what the schematics show for the battery connector.
-
Here's what the schematics show for the battery connector.
-
-
[image|2774365]
+
[image|2774386]
Now if we look at the physical connector for the battery itself on the motherboard, we'll see five pins.
[image|2774367]
Going by the schematics, we're going to make an educated assumption that the pins on the physical connector are in the same order as that shown on the schematics. This is backed up by the fact that the three outer connectors - two on the left and one on the right - are very skinny, indicating they are signal paths and not power paths. Pins 3 and 4 are really fat, saying that they carry power.
So, from left to right, we have the following signals.
# HDQ
# THERM
# PACK_NEG
# PACK_POS
# SENSE
-
-
So battery negative is the middle pin and battery positive is the one to the right of it.
-
-
Again, this is for an iPad Air 2, so be sure and verify this information with your own board, but given what you know, that the power pins are huge compared to the other three, it should be a piece of cake to identify which is which. You can always double-check the polarity of the two pins on the battery with a voltmeter.
+
So battery negative is the middle pin and battery positive is the one to the right of it. Double-check the polarity of the two pins on the battery with a voltmeter.
BTW, be vewy vewy caweful charging a lithium battery. Done wrong, they can literally explode. Not kidding here, dude; ask the owner of a Galaxy Note 7.
Hi Steven,
I don't have schematics for the iPad Air 3, so I'm going off the plans for the iPad Air 2, which I do have drawings for. I don't think it's going to be difficult though, since the battery's negative and positive connections are distinctive from the other three signal lines.
Here's what the schematics show for the battery connector.
[image|2774365]
Now if we look at the physical connector for the battery itself on the motherboard, we'll see five pins.
[image|2774367]
Going by the schematics, we're going to make an educated assumption that the pins on the physical connector are in the same order as that shown on the schematics. This is backed up by the fact that the three outer connectors - two on the left and one on the right - are very skinny, indicating they are signal paths and not power paths. Pins 3 and 4 are really fat, saying that they carry power.
So, from left to right, we have the following signals.
# HDQ
# THERM
# PACK_NEG
# PACK_POS
# SENSE
So battery negative is the middle pin and battery positive is the one to the right of it.
Again, this is for an iPad Air 2, so be sure and verify this information with your own board, but given what you know, that the power pins are huge compared to the other three, it should be a piece of cake to identify which is which. You can always double-check the polarity of the two pins on the battery with a voltmeter.
BTW, be vewy vewy caweful charging a lithium battery. Done wrong, they can literally explode. Not kidding here, dude; ask the owner of a Galaxy Note 7.