internal battery resistance for (me) dummies
Hi all, This is a great little video. https://www.youtube.com/watch?v=IftDnfr5ow0&feature=colike
Forum Discussion
Yes the hard part is separating the EMF from Resistance.
Most people say the resistance increases as a battery charges because the amps are tapering. Actually the resistance is dropping as a battery charges. The EMF is rising to match that of the charger until current basically stops when charged.
So a discharged battery at 12 volts is put on a charger of 14 volts you basically have 2 volts to overcome the resistance. Once the EMF hits 14 then current stops.
Most people say the resistance increases as a battery charges because the amps are tapering. Actually the resistance is dropping as a battery charges. The EMF is rising to match that of the charger until current basically stops when charged.
So a discharged battery at 12 volts is put on a charger of 14 volts you basically have 2 volts to overcome the resistance. Once the EMF hits 14 then current stops.
