The ancillary characteristics of batteries with differing internal resistance is what takes precedence when selecting a battery construction type. Allow me to explain.
1. When you think of one of those horrendously expensive lithium car batteries what you think of first? Second?
2. An absorbed glass mat battery?
3. Calcium no maintenance battery?
4. A high antimony battery?
C
E
F
Charge Efficiency Factor. A magic word. How much comes out with regard to how much goes in? Look at the CEF factor for all of the batteries listed above. You need to do this yourself using google and some detective work, or this schooling would be a waste of time.
What is the total range of CEF? Forget internal resistance. That's like analyzing a bank's solvency by resolving the worth of the carpet in the president's office. CEF will give you efficiency, the E in CEF.