Connect the TestMate Mini directly to the battery or “live” 12V outlet. Optimate Test TS121 Battery and Charging System/Alternator Tester. Type : Battery/Charging System Tester. Fast, accurate and professional on-vehicle testing of 12V batteries and charging systems.

Brand: Tecmate
Manufacturer Part Number: TS-121
Part Type: Battery/Charging System Tester
UPC: 5425006141864
MPN: TS-121