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Old 03-18-2010, 07:47 PM   #26
jusmee
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Posts: 1,047
Karma: 203682
Join Date: Oct 2009
Device: Libre 2
Quote:
Originally Posted by theducks View Post
Battery meters mostly work on terminal VOLTAGE, that is why it is not accurate. It is impossible to charge a battery without applying a higher,charging level to force current to flow INTO the battery.
C/10 is a normal maximum fast charge for many batteries (avoids Heating, out-gassing issues) (1000mA/10=.1A constant current mode for the PEz)

When you take a battery "Off Charge", the terminal voltage is elevated for a period (load, battery type, temperature,age all affect time), which is why it may show more bars after a short charge.
I am aware of how this works too, but just to illustrate how it still gets it wrong, - After it finally indicated that it was fully charged, I unplugged it, then the battery meter read 3 bars - i.e. 75%, not full! Even stranger, after a short time (maybe 10 minutes) I happened to look at it again, and it had increased to 4 bars. This is the opposite of the effect you described.

Bottom line for me is that other devices I own, and have owned, get it right (near enough), the PP does not.

But hey, this is all really a side track to the main issue here, which is that the newest firmware flattens batteries real quick, and has other weirdness as well, and so I feel going back to the previous firmware is necessary. That's why I started the thread after all
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