Car Battery Tester | Car Accessories | Tigercarsystems.com
$24.95
LED display indicates the condition
Check before Charge: Battery is alive, "OK" to be charged.
Alternator check: accelerate your engine to 2000 rpm when the green light is lit , charging circuit is ok.
Battery check: indicate the percentage charging in the battery.
Cranking check: red light indicates voltage from Alternator over-high