Playbox battery charge

[Jessica Spongekipper]

OK. Sadly I have a similar problem. I have a 8000 mah 2 wire cell, but. I have had the plug in a socket on the bench and I have volts at 1 & 3 and 9.98k ohms between 2 and gnd. I have charge but according to the script taken from these august pages, only 2ma @ v volts. Any clues as to what I may have done wrong ?

At what voltage? Once the battery is fully, the (charge) current will drop to 2ma... i.e. my battery is sat at 4.18v, and is fully charged, with a 2ma charge current (although I doubt it is really 2ma... but is in fact 0ma at that point and the 2ma is just a accuracy error... I haven't bothered measuring the output from the PMIC to see how accurate it is yet). 

Try this script if you're  not getting charge state / current / voltage / capacity readings. Note it needs bc to display the voltage  (sudo apt-get install bc)... one of these days I'll get around to either removing that dependency or adding a check for it... 

You'll be able to load it directly onto the pine64 if it has internet access with the following command:

Code:

wget https://gist.githubusercontent.com/pfeerick/05e5715733f00dcf303636c80abff598/raw/9bfca4be89ed219658426701b702a2663329f2df/pine64-battery.sh

Don't forget to do a chmod +x pine64-battery.sh afterwards to make it executable!

Thanks. Output is:

Pine64 reports: battery detected
Status: Charging
Voltage: 3.61v
Current: 3ma
Capacity: 6%
Health: Good

The power supply is outputting 5.3v.

Now reading

Pine64 reports: battery detected
Status: Charging
Voltage: 3.19v
Current: 2ma
Capacity: 0%
Health: Good

I can't see a voltage between pins 1 and 3 on the battery socket when the USB is connected. Even with the pull-down resistor in place.