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MacBook Pro 13 带 Touch Bar 版拆解

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MacBook Pro 13" Touch Bar Teardown: crwdns2935265:00crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 MacBook Pro 13" Touch Bar Teardown: crwdns2935265:00crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

  • At last we carve out the (mightily adhered) 5-cell battery.

  • Well, five-ish cells. With a nominal voltage of 11.41 V, the two outer pairs are wired in parallel and together have the same charge capacity as the center one, to yield three ~3.8 V cells in series.

  • You'd better hope your "Pro" career is short; this battery replacement is a doozy.

  • The battery board hosts a TI BQ20Z451 (a possible variant of the BQ20Z45-R1 line, seen in MacBook Pros forever)

  • Listing a 49.2 Wh capacity, this battery seems a little piddly compared to the Function Key edition's 54.5 Wh—especially considering it's driving a lot more functionality (pun intended).

  • Dotting our i's, we slap these batteries on a scale: the Function Key-equipped MacBook Pro battery weighed in at 235 grams, while this battery weighs just 197 grams.

  • The weight disparity probably helps account for a lighter Touch Bar edition, but the battery seems to rate more watt-hours than the decrease in weight would suggest.

终于，我们取出（被强力粘附）五节电池。

好吧，差不多五节吧！左右两个电池对并联，与中间的电池具有相同的充电容量，三个3.8V的电池串联产生11.41V 的标称电压。

你最好希望你的“Pro”生命很短;因为更换电池就像是个谎言。

电池主板上的芯片为 TI BQ20Z451（可能是在MacBook Pro 中经常看到的 BQ20Z45-R1 的变种）

标称容量49.2 Wh ，相比功能键版本的54.5 Wh，这个电池似乎有点小—特别是考虑到它要驱动更多的功能。

我们依次称取这些电池的重量：配备功能键的MacBook Pro 电池重235克，而这个电池仅重197克。

重量的差异解释了Touch Bar 版本容量小的原因，但相比减轻的重量，减小电池容量比预期的多。

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