Quote:
Originally Posted by phasor
I agree it is better to use a Li-Po battery since K3 will try to charge it and it might be tricky if it apply an algorithm for Li-Po to Ni-Mh battery (or non rechargeable battery) since they have different characteristics, internal impedance etc.
I have some Ni-Mh and it would be the simplest way to do the experiment. I suppose I should use 3x1,2=3,6V, not 2 pieces? If you persuade me that this will not burn my USB port on laptop I could try 
Thank you all for comments and advices  |
I think that is what was used in the thread on the subject.
You only want to use that setup long enough to confirm that the Kindle will boot.
It will try to re-charge the batteries, but if not fully charged when you use them, they can handle the charging current just fine.
It would only be when they reach their charge limit that the differences would become relevant, and you are not going to need them hooked up that long.
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Burn up your USB port?
What are you thinking?
There is no direct connection between the battery circuitry and the USB power bus.
Everything is powered through power conversion / regulator systems.