5E40.75 - Internal Resistance of a Battery
As batteries age, their internal resistance goes up and power output goes down accordingly. On occasion a battery can be found that shows 6 volts but has no current output due to a very large internal resistance.
- Adam Niculescu, Peter Martin, "Making and Evaluating an Electrical Battery", TPT, Vol. 44, # 6, p. 343, Sept. 2006.
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