No need for check and top up distilled water.
No need for recharging of battery
No chance for sulphation of battery terminals
No need for disconnect the terminals to remove battery
Ammeter
Voltmeter
Ohmmeter
Wattmeter
Open circuit
Short circuit
Series closed circuit
Parallel closed circuit
Series circuit
Parallel circuit
R = R1 + R2
R = R1 ? R2
R = R1 x R2
R = R1/R2
