Solar system not keeping batteries charged

[gator.bigfoot]

Originally Posted by ROBERT CROSS

What is the relationship between voltage and SOC in a Lithium battery?

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Measuring the SOC on a lithium is no easy task. But there are ways.....
http://liionbms.com/php/wp_soc_estimate.php

http://www.ti.com/lit/an/slyt402/slyt402.pdf

https://uwaterloo.ca/mechatronic-veh...phd-thesis.pdf

[robertstaley]

if its new, please contact the manufacturer or the dealer of this brand. I hope they give a proper solution to your problem.

thanks

[TouringDan]

Originally Posted by ROBERT CROSS

What is the relationship between voltage and SOC in a Lithium battery?

Bob

Here you go. I got this from Battle Born.

Dan

[TouringDan]

[QUOTE=gator.bigfoot;2202833]Measuring the SOC on a lithium is no easy task. But there are ways.....

[\QUOTE]



gator.bigfoot

It would seem to me that a battery monitor will measure the SOC of a lithium battery the same way as it does for a lead acid battery. Alternatively, using the BB voltage versus SOC table you can determine the SOC of the lithium battery using a voltmeter to measure the voltage of the lithium battery.

The photos show the voltage and the SOC of my lithium batteries using my Trimetric battery monitor.

Dan

[ROBERT CROSS]

Originally Posted by TouringDan

Bob

Here you go. I got this from Battle Born.

DanAttachment 332486

As demonstrated on my monitor...40% soc @ 13.03v

Bob
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