For vehicles fitted with 12V AGM GEL and STD lead-acid or 12.8V LFP / LiFePO4 starter battery.

As easy as 1-2-3 connect to battery check state of charge start engine tester displays cranking voltage and vehicle charge voltage simultaneously- 15 sec is all you need!

Display cranking volts down to 6V and charge voltage range up to 15V – Check weak battery or overcharging!

Easy to use! Connect with the included clips to the battery or connect to an installed SAE battery lead.; Verifies charging voltage when engine is running.

3-Year Warranty

Model: TS-121

SKU UH010-AC5 Category


The ultimate pocket tester for on-vehicle battery performance & alternator voltage testing with either 12V lead-acid or 12.8V LiFePO4 starter battery – Easy troubleshooting from cranking to charging!

Additional information
Weight 1 lbs

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