East (SF) Bay EAA Chapter
Battery Lifetime for EVs
Saturday, January 24, 2009
For our first meeting of 2009, we had our long-time EV scientist and EAA co-founder Warren Winovich present his paper on EV Battery Lifetime.
While most people ask about EV performance - how fast? how far? - the question of battery lifetime is never asked. Yet this is one of the most important factors to the owner/driver of an electric car.
Warren's presentation considered battery lifetimes for common battery systems and chemistries - PbA, NiCd, NiMH & Lithium - based on a compilation of user experiences, battery studies and literature.
The results of this study are applied to electric cars driven by EAA members, to assess the expected lifetime and operating costs of an EV.
During our discussion about current issues, our VP Karl raised the issue that we need to be aware of the political issues and how we as the EAA are being represented by the EAA National and Plug-in America. If we are going to be represented then we need to express whether we feel these spokespeople are clearly representing our interests and understanding.
Karl and others will be getting involved with next month's Annual National EAA meeting in Palo Alto on Sat, Feb 21. Hope many members will attend.
We had a mixture of 6 EVs on display in the parking lot after the meeting. Lots of great discussion, insight into the conversion process and encouragement for others with EVs to drive then to our meetings.