Introducing FREE FREIGHT OVER FORTY! Orders over $40 will be eligible for FREE GROUND FREIGHT in the contiguous 48 states.*
*Some restrictions apply. See the shipping policies page for details.
Primary use is to determine when to recharge a battery in a total loss application, commonly found in many race vehicles
When the green light is on, the battery is fully charged; when the amber light is on, there is still sufficient voltage to operate the ignition and other accessories; when the red light is on, the battery should be charged as soon as possible
