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Technology Stocks : VALENCE TECHNOLOGY (VLNC) -- Ignore unavailable to you. Want to Upgrade?

To: Gordon Quickstad who wrote (4602)	10/28/1998 10:30:00 PM
From: FMK	Respond to of 27311

Hi Gordon, I was fortunate enough to be mailed a data sheet a while back that is easier to read than what you can pull from the web page. If you study the discharge rate chart, you will notice a family of curves labeled 3c,2c.1c,c/2,c/4 etc. At no load, the IMP cell voltage is 4.2 volts. If you follow the 1c curve to 80% capacity, you will note that it averages about 3.8 volts from 100 to 80%. If you follow the lower discharge rate (c/2) curve the average is higher than 3.8 volts. Most laptop and cellphone applications will not consume power at greater than the c2 rate so the effective voltage is over 3.8 for normal operation. The 3.5 volt range of operation for fast discharge (3c or 2c rate) would run the battery down in perhaps 30 minutes, which would not be typical for Valence OEM's. I had some long conversations with Valence engineers last year was told 3.8 volts was the correct value to use for watt hour calculations! Regards, FMK