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After hitting 100% battery just kept on charging. Design capacity 1408mAh but it had reached 1458mAh. I was anxious about overcharging so ultimately unplugged it.
While Android devices charge at upto 4.4V, Kindle only reached 4.19V. Every 0.1V decrease in max. charging voltage is supposed to potentially double the useful cycle count. So it's a bit better.
In many Android devices a charge control file is present where with root it's trivial to start/stop charging by changing the value from 0 to 1 and vice-versa.
When plugged in and at 100% battery status was shown as "Full" vs "Discharging" when it's unplugged.
I use the Battery Status KUAL extension in my PW3. Works well. Best feature is the battery temp. readout. No more prolonged reading under direct sunlight!
Cycle count is still only 13 after 1.5 years which is nice. But recently the battery in my 33 month laptop with only 48 cycle count has significantly degraded such that it no longer charges beyond 80% or so and falls to zero straightaway from 20-25%.
P.S. For some older Kindles there was a software mod to boot the device without a battery. Does that still work for newer devices in particular the PW3?
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