You can also actually file off the front left corner of the 2015 logic board where it doesn't fit (with a fine tooth file, nothing crazy) because the 2015 for wtf reason used a smaller radius curve on that corner vs. the other, and the 2016-17 board has the same radius curve on both sides. There's nothing but silicon on that corner and I've made successful replacements of 2015 batteries using pulled bottom cases from 2016-17 this way. Just have to round off the very corner just a bit, and everything is otherwise exactly interchangeable. Also you'll end up with more battery life using the 2017 given that it has a higher mAh rating than did the 2015 battery.
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I'll always recommend a pulled, tested OEM bottom case vs. a 3p battery because I've never been able to find a third party battery for the a1534 that isn't crap.
You can also actually file off the front left corner of the 2015 logic board where it doesn't fit (with a fine tooth file, nothing crazy) because the 2015 for wtf reason used a smaller radius curve on that corner vs. the other. There's nothing but silicon on that corner and I've made successful replacements of 2015 batteries using pulled bottom cases from 2016-17 this way. Just have to round off the very corner just a bit.
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You can also actually file off the front left corner of the 2015 logic board where it doesn't fit (with a fine tooth file, nothing crazy) because the 2015 for wtf reason used a smaller radius curve on that corner vs. the other, and the 2016-17 board has the same radius curve on both sides. There's nothing but silicon on that corner and I've made successful replacements of 2015 batteries using pulled bottom cases from 2016-17 this way. Just have to round off the very corner just a bit, and everything is otherwise exactly interchangeable. Also you'll end up with more battery life using the 2017 given that it has a higher mAh rating than did the 2015 battery.
You can also actually file off the front left corner of the 2015 logic board where it doesn't fit (with a fine tooth file, nothing crazy) because the 2015 for wtf reason used a smaller radius curve on that corner vs. the other. There's nothing but silicon on that corner and I've made successful replacements of 2015 batteries using pulled bottom cases from 2016-17 this way. Just have to round off the very corner just a bit.