Hi All,
I recently bought a couple of basic Eco Worthy 12v 100Ah liFePO4 batteries which seem to checkout on a straightforward capacity test.
Just wondering what the best way is to test the internal resistance of these batteries where I can't get access to the cells directly? Is using a resistor (s) along with a multimeter and varying sizes loads the best way? Alternatively, should I be looking at a dedicated battery impedance tester like the YR1035+?
Also, does anyone know of any reference data I can use as a guide on what I should be expecting in terms of resistance and temperature in relationship to battery load?
I recently bought a couple of basic Eco Worthy 12v 100Ah liFePO4 batteries which seem to checkout on a straightforward capacity test.
Just wondering what the best way is to test the internal resistance of these batteries where I can't get access to the cells directly? Is using a resistor (s) along with a multimeter and varying sizes loads the best way? Alternatively, should I be looking at a dedicated battery impedance tester like the YR1035+?
Also, does anyone know of any reference data I can use as a guide on what I should be expecting in terms of resistance and temperature in relationship to battery load?