chimmer wrote:Isn't a August 2013 battery gen 2 ? If not .... What are the years and gen types ? Thanks
The generation labels might vary with who you ask. There was the original battery that was in the 2011 and 2012 models, with four temperature sensors. 2013 brought a new case, different bms, change in the wiring, and three temperature sensors. There is also a retrofit kit so the 2013 style battery will fit in the 2011/12 models. An updated cell chemistry was introduced in the April 2013 battery packs. Another cell chemistry update was introduced for the 2015 model year. These are supposed to be more heat resistant and know as 'Lizard' packs. It is rumored that some of the late 2014 models also got Lizard packs, but I have not read any confirmation of this. 2016 introduced the 30kwh battery packs, using the same housing, but reported as not electrically compatible with the cars that shipped with a 24kwh battery pack.