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

To: FMK who wrote (4598)	10/28/1998 8:36:00 PM
From: Gordon Quickstad	Read Replies (1) \| Respond to of 27311

Fred, I don't know how the industry chooses to rate batteries, but I personally would only be satisfied if they were rated in a practical manner. The initial voltage of lithium ion cells after a full charge is about 3.8 volts. In use, the voltage tapers off and the battery is usable down to about 3 volts, where the capacity is just about depleted. So, during use, the cell voltage would be declining and so I picked an average voltage of 3.5 volts during the whole period of the battery's energy consumption. We don't have to adjust the 1.4 amp hour figure because the figure states that the battery will supply 1.4 amps for an hour; what will vary is that the voltage will drop during that time. What the Valence engineers would use would probably vary depending on using more accurate math, different rates of discharge, etc. Of main importance is that it's a reliable battery, has decent energy density, and has enough lifetime. I hope we're doing well on each of those counts.