How To Measure Battery Resistance. All you need is a 4 ohm 5W power resistor or similar and a multimeter. It varies with the type.
To measure resistance. If its a cranking battery load to 10 times the Ah The 2 tier fig 4 is far better way to measure internal resistance. The Hioki BT3562 can measure the internal resistance of battery packs of up to 60 V while the BT3563 can measure the internal resistance of battery packs of up to 300 V.
Measurement 1 is the high resistance ie.
After that you can measure the no load voltage of the battery by connecting the test lead to the battery terminals directly. See how to easily measure battery internal resistance when making battery packs or for evaluating the condition of rechargeable batteries. We can calculate the internal resistance if we take readings of the open-circuit voltage and the voltage across the batterys terminals with a load attached. The internal resistance characterizes the capability of a battery to handle certain load.
