Battery Lab

New Mean Cells

These were the days my friend….. This week we acknowledge a sea change and weather change in the land of Electric Vehicles. It will take some years yet to play out, but the helm has swung hard over and we are no longer destined to fall off the edge of the earth into that dreaded …

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CHARGE FAST – DIE YOUNG – LEAVE A GREAT LOOKING CAR

If you’re not living on the edge, you’re taking up too much room. Or so I’ve been told. This week’s show is almost entirely devoted to watching paint dry. But it’s fast dry paint. We attempted to charge a CA40FI series cell at a 3C 120 ampere rate. The Chinese manufacturers of the Thundersky, Sky …

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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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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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April 16 Friday Show

This week we digress a bit from vehicle issues and take a look at the progression of LiFePo4 cell offerings over the past two years.  We also do some full 1C discharge and charge tests on the cells. The first cell in this series is a Thundersky TS-LFP160AH cell we purchased about 18 months ago. …

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