+hogrod Posted June 14, 2006 Share Posted June 14, 2006 Trying to use new lithium batteries with the 2.71beta firmware, after powering it on the screen faded out(unit turned off). I couldn't get the unit to stay on at all, until I powered it on with usb power connected. after that I could unplug the USB and power the unit on and off with no issues. yesterday I upgraded to the 2.90 firmware, and decided to try the lithium batterys again. I found some really weird behaviour, with new lithiums installed but powering the unit with USB. If I went into the menu lets say to the trip computer, and pressed the directional button up where I make it beep, the unit would power off. sometimes It would take a couple beeps. the directional pad also turned the unit off on hwy page, routes, stopwatch, sunmoon, huntfish.(probably more too) basicly powering the unit via USB with lithiums installed, any time I could get the menu beep the unit would fade out/power off. powering the unit with USB and using rechargables/alkaline no problems at all with tones. going into setup/tone I decided to see if only certain tones turned the unit off. I didn't try all the tones but here is list of what I tried. turns off tone 1 tone 6 tone 10 tone 9 works fine tone 7 tone 8 has anyone else noticed that the tones are causing the lithium battery issues? also wouldn't the USB power override the batterys in the unit so this shouldn't happen anyway? Quote Link to comment
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