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Old Jan 31, 2013, 12:45 PM
NAHANNIV is offline
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Quote:
Originally Posted by junsi View Post
Hello everyone here,

We want to implement a battery capacity display feature in CellLog, but now we do not know the relationship between the open circuit voltage and battery capacity. Take Lipo cell as example:

100%----4.20V
  90%-----4.06V
  80%-----3.98V
  70%-----3.92V
  60%-----3.87V
  50%-----3.82V
  40%-----3.79V
  30%-----3.77V
  20%-----3.74V
  10%-----3.68V
  5%------3.45V
  0%------3.00V

Would you pls tell us if you know the information? We want to know details of Lipo, Lilo and LiFe.

Thank you for your help.

Regards,
Junsi
How about a capacity display for the PowerLog 6S ? It already has the required current measuring.

It would be easy, Just need to add a few parameters like: Pack Capacity, charged voltage, charged current, charging efficiency factor, Maximum discharge floor, then display as a percent or a graphic.

Here is a link to a monitor that implements this well:
http://www.xantrex.com/documents/Dis...196-01-01).pdf

I wish there was an option for an external current shunt, I may modify a PowerLog by cutting or desoldering the inbuilt one. Is there a limit in the software or hardware for the signal from the shunt. I.E. can I exceed 140A with a suitably rated external shunt ?
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