[RE-wrenches] Goal of charge regulation FLA vs LiFePo

Mark Frye markf at berkeleysolar.com
Fri May 29 11:44:56 EDT 2020


Folks,

A few questions:

When charging a FLA battery, even though we use a three stage charging 
regime controlling voltage/current, is it not true that the real goal is 
to avoid excess temperature rise inside the cell generally? Do we worry 
that excess current will cause localized excess heating with the cell 
and subsequent mechanical breakdown? Do we worry that excess voltage 
will cause some kind of electro-chemical breakdown?

If control of excess temperature rise is not the goal of charge 
regulation, what is the goal?

Having defined the goal for FLA how is it the same or different for a 
LiFePo?

I am pretty sure it is much easier to damage a Li with bad charging, but 
why?

Thanks,

Mark



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