A fresh battery may produce two volts for a short time, which should disappear after a slight amount of use, and stabilize to around 1.6v per cell, then drop off at a much more commonly accepted rate.
I recall at one time manufacturers of sensitive equipment suggesting batteries be run in a small flashlight (torch) for a short period to prevent over-voltage. Now days, if it's that sensitive, they use a DC-DC converter. 1.5v is the rated voltage, not the actual voltage. -Ben On Sat, June 2, 2007 1:14 pm, Romain Thouvenin said: > Hello, > > Does anyone know the unit of the values read by the voltage sensor on > Tmote sky motes ? > > According to the data sheet, the voltage must be between 2.1 V and 3.6 > V. Recently, the batteries of two motes were exhausted, and the last > reported value was about 2200, so one could imagine that's in > millivolts. But the value with new batteries, which is supposed to be > 3V (two AA), and the value when the mote is supplied through USB (also > supposed to be 3V according to the data sheet), are 4095. > -- The difference between the right word and the almost right word is really a large matter- it's the difference between a lightning bug and the lightning. -Twain _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
