- Thu Feb 09, 2012 2:13 pm
#139520
Hi guys, I am using a LiFiPo4 battery that consists of 16 Headway 30140s cells in series for a 48v battery. I would like to read the individual battery voltages with an arduino. I noticed this and thought it would be perfect for it.
http://www.sparkfun.com/products/9056
BOB-09056
The main question I guess is, should I use something like an optoisolator between the batteries and the multiplexer? LiFePo4 cells dont go above 3.7v I believe, so would one still be necessary? Is there a 16 channel optoisolator or would I have to use 4 4 channel ones?
Id also like to add a current sensor for it.. but that can probably be saved for a different discussion.
Thanks!
http://www.sparkfun.com/products/9056
BOB-09056
The main question I guess is, should I use something like an optoisolator between the batteries and the multiplexer? LiFePo4 cells dont go above 3.7v I believe, so would one still be necessary? Is there a 16 channel optoisolator or would I have to use 4 4 channel ones?
Id also like to add a current sensor for it.. but that can probably be saved for a different discussion.
Thanks!