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405 Posts
Hi all,
I want to fully understand the Depth of Discharge (DOD) for Thundersky batteries. IE: the 200ah cells:
http://currentevtech.com/Lithium-Batteries/Thundersky/Thundersky-200ah-cell-p27.html
4.0 v max charged, and 2.8 v max discharged. So, at 4.0 v it is 0% DOD and 2.8v it is 100% DOD, correct?
To take it t a maximum of 80% DOD that would be: 3.04 volts, right? (4 - (4-2.8)*.80 = 3.04)
If I charge the cells to the maximum recommended 3.8 volts, then that is leaving off nearly 16% of the available energy, correct? I must be missing something…as I have heard that most the energy is stored around the 3.2 volt range. I want to understand exactly what this means.
If anyone has any reference papers, or URLs to refer me to I'll gladly read up on it myself.
I know some of this has been covered before on the forums, but it is hard to google out the stuff that doesn't directly talk about this.
thanks!
corbin
I want to fully understand the Depth of Discharge (DOD) for Thundersky batteries. IE: the 200ah cells:
http://currentevtech.com/Lithium-Batteries/Thundersky/Thundersky-200ah-cell-p27.html
4.0 v max charged, and 2.8 v max discharged. So, at 4.0 v it is 0% DOD and 2.8v it is 100% DOD, correct?
To take it t a maximum of 80% DOD that would be: 3.04 volts, right? (4 - (4-2.8)*.80 = 3.04)
If I charge the cells to the maximum recommended 3.8 volts, then that is leaving off nearly 16% of the available energy, correct? I must be missing something…as I have heard that most the energy is stored around the 3.2 volt range. I want to understand exactly what this means.
If anyone has any reference papers, or URLs to refer me to I'll gladly read up on it myself.
I know some of this has been covered before on the forums, but it is hard to google out the stuff that doesn't directly talk about this.
thanks!
corbin