Quote:
Originally Posted by StamosD
Trust me, it isn't an object, it is an intelligent comms device that controls its charging cycle.
I know, I hold a Masters Degree in Electrical engineering from Cambridge University.
Follow my advice.
As a relevant digression, consider why Toyota's Hybrid batteries (originally guaranteed for 8 years) have been lasting 10 years and 250,000 miles while still being able to maintain 80% charge.
This is because their charging cycle was 'over designed' and limited the amount the batteries are allowed to discharge (20%), the amount the batteries are allowed to charge (80% capacity) and the charging rate.
Always follow the manufacturer's instructions.
Stamos D
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Congratulations on having a Masters... that doesn't mean that you're right about everything though... "You're supposed to use a computer..." Sorry that is minimum recommendation not essential necessity otherwise the device manufacturer's wouldn't make an INDEPENDENT PSU... and the charging cycles are controlled by the device not the PSU...
Yes, some cheap PSUs can fry your device but the regulation for them refers to not allowing spikes and other irregularities in the output... not to controlling the charge levels other than to have hi-speed charge ID as uboot says...
And there is no such thing as an intelligent comms or other electronic device, simply one that meets pre-programmed conditions - this is not intelligence...
And I would also point out that the only time, I use a computer for charging, is when I plug the reader(s) in for file transfer occasionally otherwise I ONLY charge by external charger... and my earliest eReader (PRS 505 bought new on release) is still charging and working perfectly after years of daily usage with a variety of mains chargers providing a currents ranging from 750mA to 2A...