Battery Lab

APPLE Aquires Tesla Motors – On a Cold Day in July in Cape Girardeau

It’s cold here in Cape Girardeau for July. Actually, not. It has been over 100 degrees Fahrenheit every day and most of our shop is devoid of air conditioning, making EVTV a pretty miserable place to be, much less pinned to for two hours writing down battery measurements every minute on the minute. But we …

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CALB CA180FI NEW LiFePo4 CELL

This week we begin testing the new CALB gray cell, the CA180FI. As I mentioned in the last post, these new cells sport some interesting improvements. The most minor, and most welcome, is they are labeled with a serial number and a tested Ah capacity. The cells are manufactured on a newer, much larger production line …

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Life in LiFePo4 – Cycle Life and Attenuation Data

Kind of a late blog entry. Busy week with Rickard Electric Speedster design. The May 28th show rounded up a lot of little parts such as the accelerator – with a little valet function box I refer to as “daughter mode.” [jwplayer file=”news052810-1280 – iPhone.mov” hd.file=”news052810-1280.mov” image=”http://media.ev-tv.me/news052810.jpg” streamer=”rtmp://s3jgrp4mv5fnqx.cloudfront.net/cfx/st” provider=”rtmp” html5_file=”http://media.ev-tv.me/news052810 – iPhone.mov” download_file=”http://media.ev-tv.me/news052810-1280.mov”] The basic …

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