I would think this is by design; a lithium battery below some minimum cell 
voltage is probably damaged and should not be charged.

I don't know how the PMIC decides the charge profile, though, so I don't know 
what it might be doing.

> On Nov 13, 2016, at 14:05 , William Hermans <yyrk...@gmail.com> wrote:
> 
> We've been observing that the PMIC does not charge a battery that is below a 
> certain voltage threshold. So obviously, when a battery is at or around 0v it 
> will not charge that battery. As well as when the battery is at around 1v the 
> PMIC still will not charge.
> 
> I was wondering if this is normal behavior, and if so, how  does one bypass 
> this behavior. I'm not exactly looking for register values and / or code. It 
> would be welcome, but I'm more interested in *IF* it is possible to bypass, 
> and perhaps which register(s) I need to look at in the datasheet for 
> information. Also helpful would be knowing if it is in fact possible to 
> charge a battery through then PMIC when that battery is low in voltage. Any 
> information on this subject could help . . .
> 
> Additionally, I've written a Nodejs app that does display all register 
> values. Which should help us troubleshoot this problem. Below is a screenshot 
> of it in action. The link to the project is located at: 
> https://github.com/wphermans/Beaglebone-Web-PMIC-Register-Viewer. For those 
> who wish to experiment with it. A suitable Jessie image is required, based on 
> the requirements listed in the readme. Ultlimately because gcc 4.8 / g++ 4.8 
> are required for Nodejs 4.6.2 to be functional.
> 
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> <CHGCONFIG0.jpg>


-- 
Rick Mann
rm...@latencyzero.com


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