wrote in message
...
On Tue, 7 Apr 2015 13:33:03 -0400, "Jim Wilkins"
wrote:

! wasn't talking about the USB one - I was taliking about the higher
voltage higher current ones used by the RC plane guys.

Oh, those! I have the 60V 100A AODE model. The voltage is pretty close
but the current actually resolves to 0.2A (9 bits?) despite the
appearance that it reads to 10mA. It fakes the difference by
"dithering", or injecting random noise to make the display bounce
around.
http://www.amazon.com/Digital-Batter.../dp/B00EYZS6R6
"USes DSP to increase ADC resolution ..."
But not ADC accuracy.

It's still useful, just not to monitor trickle charging or equalizing.
I put Andersons on the 33V, 3A meter for that.

-jsw