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On May 18, 2010, the MacBook was refreshed with a faster processor, a faster graphics card, improved battery life, and the ability to pass audio through the Mini DisplayPort connector. On July 20, 2011, the MacBook was discontinued for consumer purchases, but was still available to educational institutions until February 2012.
A Battery: Eveready 742: 1.5 V: Metal tabs H: 101.6 L: 63.5 W: 63.5 Used to provide power to the filament of a vacuum tube. B Battery: Eveready 762-S: 45 V: Threaded posts H: 146 L: 104.8 W: 63.5 Used to supply plate voltage in vintage vacuum tube equipment. Origin of the term B+ for plate voltage power supplies.
The updated MacBook Pro 13- and the 15-inch would each have up to a claimed 7 hours of battery life, while the 17-inch would keep its 8-hour capacity. [44] [46] Some sources even reported up to eight hours of battery life for the 13- and 15-inch MacBook Pro computers during casual use, [47] while others reported around six hours. [39]
MacBook Pro (Mid 2010) 2.40–2.53 2×256 3 1 2 No Yes Yes April 2010 March 2011 Core i7 ("Arrandale") MacBook Pro (Mid 2010) 2.66 2×256 4 1 2 No Yes Yes April 2010 March 2011 Core i3 ("Clarkdale") iMac (Mid 2010) 3.06–3.20 2×256 4 1 2 No Yes No July 2010 May 2011 Core i5 ("Clarkdale") iMac (Mid 2010) 3.60 2×256 4 1 2 No Yes Yes July 2010
A zinc-carbon lantern battery, consisting of 4 round "size 25" cells in series. Terminated with spring terminals. 4LR25-2: 4: L: R: 25: 2: An alkaline lantern battery, consisting of 2 parallel strings of 4 round "size 25" cells in series 6F22: 6: F: 22: A zinc-carbon rectangular battery, consisting of 6 flat "size 22" cells. Equivalent to a PP3 ...
The updated MacBook Pro 13- and the 15-inch would each have up to a claimed 7 hours of battery life, while the 17-inch would keep its 8-hour capacity. [32] [34] Some sources even reported up to eight hours of battery life for the 13- and 15-inch MacBook Pro computers during casual use, [35] while others reported around six hours. [27]
May 18, 2010 MacBook Polycarbonate Unibody (Mid 2010) MacBook: July 20, 2011 June 15, 2010 Mac Mini Unibody (Mid 2010) Mac Mini: July 20, 2011 Mac Mini Unibody Server (Mid 2010) Mac Mini: July 20, 2011 July 27, 2010 iMac Unibody (Mid 2010) iMac: May 3, 2011 August 9, 2010 Mac Pro Tower (Mid 2010) Mac Pro: June 11, 2012 October 20, 2010 MacBook ...
This list is a summary of notable electric battery types composed of one or more electrochemical cells. Three lists are provided in the table. Three lists are provided in the table. The primary (non-rechargeable) and secondary (rechargeable) cell lists are lists of battery chemistry.