crwdns2933803:021crwdne2933803:0
crwdns2933797:0Jeff Suovanencrwdnd2933797:0crwdne2933797:0
crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Jeff Suovanen
- crwdns2933769:0crwdne2933769:0
- crwdns2933771:0crwdne2933771:0
- crwdns2933801:0crwdne2933801:0
crwdns2933807:0crwdne2933807:0
[* black] At last we carve out the (mightily adhered) 5-cell battery. | |
- | [* icon_note] 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 |
- | [* black] You'd better hope your "Pro" career is short |
- | [* red] The battery board hosts a TI BQ20Z451 (a possible variant of the [http://www.ti.com/product/BQ20Z45-R1|BQ20Z45-R1|new_window=true] line seen in MacBook Pros forever) |
- | [* black] Listing a 49.2 Wh capacity this battery seems a little piddly compared to the [guide|72415|Function Key edition|stepid=144793|new_window=true]'s 54.5 Wh |
- | [* black] Dotting our i's we |
+ | [* icon_note] 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. |
+ | [* black] You'd better hope your "Pro" career is short; this battery replacement is a doozy. |
+ | [* red] The battery board hosts a TI BQ20Z451 (a possible variant of the [http://www.ti.com/product/BQ20Z45-R1|BQ20Z45-R1|new_window=true] line, seen in MacBook Pros forever) |
+ | [* black] Listing a 49.2 Wh capacity, this battery seems a little piddly compared to the [guide|72415|Function Key edition|stepid=144793|new_window=true]'s 54.5 Wh—especially considering it's driving a lot more functionality (pun intended). |
+ | [* black] 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. |
[* icon_note] 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. |