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Popup · 10-11-2012, 08:35 AM

I just played a bit more.

I connected my external power supply to the battery terminals (instead of the battery). The power supply is set to 4.1V (I've got some rather thin wires and I worry about the voltage drop. But measuring at the terminals it never dips below 3.9V.)

While the unit is 'idle' I measure a current draw of ~120mA. If I slide the power switch for 15 seconds the current draw drops to 0 until I release the switch, when it goes back to 120mA.

Sometimes¹ the current draw starts to fluctuate wildly between 80mA and 220mA. Sometimes the green LED starts flashing very slowly. (Five seconds on, five seconds off.)

During this entire procedure the screen didn't flicker a single pixel.

Unfortunately I don't have a PC close, so I can't say what it does on the USB.

¹I must admit that I'm not quite sure what caused this. I wasn't able to reproduce either phenomenon.

10-11-2012, 08:35 AM	#15
Popup Zealot Posts: 102 Karma: 100000 Join Date: May 2011 Device: kindle3, paperwhite-2012, Oasis-2016, paperwhite-2019	I just played a bit more. I connected my external power supply to the battery terminals (instead of the battery). The power supply is set to 4.1V (I've got some rather thin wires and I worry about the voltage drop. But measuring at the terminals it never dips below 3.9V.) While the unit is 'idle' I measure a current draw of ~120mA. If I slide the power switch for 15 seconds the current draw drops to 0 until I release the switch, when it goes back to 120mA. Sometimes¹ the current draw starts to fluctuate wildly between 80mA and 220mA. Sometimes the green LED starts flashing very slowly. (Five seconds on, five seconds off.) During this entire procedure the screen didn't flicker a single pixel. Unfortunately I don't have a PC close, so I can't say what it does on the USB. ¹I must admit that I'm not quite sure what caused this. I wasn't able to reproduce either phenomenon.