Optimate Cranking & Alternator Tester (12v)

£34.95 (+VAT)

SKU: OPT-TS120 Category: Tags: , ,


Optimate TEST is the ultimate 12 volt pocket tester for on-vehicle battery performance & alternator voltage testing that every service technician or gear head should have!

Easy to use! Connect clips to the battery or connect to an installed SAE battery lead, then:

  • Check battery charge level: A low battery cranks (starts engine) poorly
  • Start engine: OptiMate TEST records and indicates (for 20 sec) the lowest start volts.
  • With engine running: Verify charging voltage from alternator and voltage regulator.

TIP: Low charge voltage causes poor battery performance. Too high charge voltage causes excessive gassing and will eventually damage a lead-acid battery. Too high charge voltage is Fatal for a LiFePO4 starter battery!


  • Microprocessor accuracy
  • Easy to follow instructions on rear panel of the tester
  • Industry standard SAE 2-pin connector
  • 40″ / 100cm battery clip set
  • Fully sealed

A premium tester designed by TecMate. 3-year limited replacement warranty.

Estimated dispatch time within 5 working days.

Picture for illustration purposes only. Actual parts may differ slightly in appearance.