4 AMP 9 Step Smart Car Battery Charger

A modern smart charger doesn’t just breathe life into a dead battery
Capable of varying the current to prevent damage and prolonging the battery’s life
This new generation of battery chargers constantly monitor the battery, vary the charge rate and can be left attached to the car for long periods of time
LCD display shows status and battery voltage measurement.
Built-in protection guards against overcharging, reverse polarity, or short circuits.