Cell tester device employing a printed transparent electrically

Cell tester for use with microprocessor

Cell voltage detecting apparatus

Cell voltage detection circuit, and method of detecting cell...

Cell voltage measuring device for cell module

Cell voltage monitor for a fuel cell stack

Charge depletion meter

Charge measurement circuit for a battery in which oscillators ar

Charge status indicator

Charging/discharging electrical energy indication apparatus...

Circuit and method for auto-calibration of an active load

Circuit and method for detecting battery source end of life

Circuit and method for measuring battery voltage by time of disc

Circuit arrangement for judging the lifetime of a battery in a n

Circuit for detecting leakage in power supply

Circuit for detecting overcharging and overdischarging

Circuit for measuring battery voltage and method for battery...

Circuit for measuring discharging and charging current of a batt

Circuit for measuring the capacity of a battery

Combination battery, light bulb, and fuse tester