crwdns2936039:0MacBook Pro 13" Retina Display Early 2015 Teardowncrwdnd2936039:09crwdne2936039:0 - iFixit

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crwdns2933797:0Andrew Optimus Goldheartcrwdnd2933797:0Kul 11, 2015crwdne2933797:0

crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Andrew Optimus Goldheart

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	[* black] We performed a battery of procedures in order to remove this 74.9-watt-hour array of lithium-polymer cells.
-	[* icon_note] Apple claims that this new 11.42 V, ~~6559 mAh~~ battery provides up to 10 hours of web browsing and up to 12 hours of video playback.
-	[* black] ~~That~~'s an ~~additional 3.1 V~~ over the [~~[Topic:MacBook Pro 13" Retina Display Mid 2014~~\|~~Mid 2014~~\|new_window=true]] model~~, giving you a hypothetical extra hour~~ of ~~browsing~~ the ~~web~~.
+	[* icon_note] Apple claims that this new 11.42 V, 74.9 Whr battery provides up to 10 hours of web browsing and up to 12 hours of video playback.
+	[* black] In 2013 we got 71.8 Whr, so we're up a whole 4% capacity, to provide an extra 11% runtime over the [guide\|18695\|Late 2013\|stepid=53238\|new_window=true] model. We're gonna chalk the rest of the boost up to the Broadwell architecture's efficiency gains.
	[* black] The [guide\|36157\|Dell XPS 13\|stepid=80995] however manages an HD screen and an (alleged) 11 hours of run time on a 52 Wh battery.
	[* red] This [guide\|9532\|familiar Retina citizen\|stepid=36404], Texas Instruments BQ20Z451 Gas Gauge IC measures battery life.
	[* black] This IC should be similar to the older [http://www.ti.com/product/BQ20Z45\|BQ20Z45\|new_window=true] or its replacement, the [http://www.ti.com/product/BQ20Z45-R1\|BQ20Z45-R1\|new_window=true].