(09-29-2016, 07:39 PM)dkryder Wrote: you could give this chart a look,
http://hackerboards.com/misc/sbc-survey-...-table.pdf
it's fairly up tp date on the market presently. my experience with the pine64 is that it can use a battery up fairly quickly with browsing. and as it currently stands , it takes a good while to charge up. i'm not sure how to slow down battery drain or speed up charging. i'd be interested in others views on those issues.
Nice find dkryder... very handy chart! I'm currently liking the looks of the BananaPi /OrangePi boards, but also keeping an eye out for the release of the Banana Pi M2 Ultra, as that is looking to be one sweet little board when it comes out.
Regarding the battery, the experience with my own board indicates that the registers in the PMIC are being configured to charge the battery at the ultra fast rate of ~400ma... So a flat 8000mah battery will take... a LONG time to charge!
To improve the situation (if you ONLY want the pine64 to charge it's battery) you can get it to reset to the default 1.2A charge by (when the battery and power is unplugged - not just when the pine is off) removing the microSD card... and then connecting the battery and power back to the pine. You can turn the pine64 off then (hold the power button for a bit over 10 seconds) and it will continue to charge, as the pine64 does not need to be running for the PMIC to do it's job. xalius would probably be the best person to chase up on that, as I believe he was looking into how the change the PMIC settings, and I've never place with the devicetree stuff so don't even know where to begin! Also, I have come to realise the fuel gauge (how the battery % remaining is calculated) is woefully inaccurate, and can indicate the battery is empty when it is only half flat, thus making it more sensible to rely on tracking the battery voltage instead. Don't know what that means for Androird/RemixOS though, as they are probably just using the %!