OptiMate TS-126. State of charge tester – all 12 V lead-acid & 12.8 V/13.2 V Lithium batteries. The ideal parts counter battery voltage tester for all 12 V lead-acid and 12.8 V / 13.2 V Lithium starter batteries – easily check any battery voltage instantly! Features Indicates static voltage and state of charge percentage for 12 V AGM GEL and STD lead-acid and 12.8 V / 13.2 V Lithium LFP/LiFePO4 batteries Easy to understand comparitive display compares voltage and state of charge for all vehicle starter battery technologies – helps educate customers Easy to use! Connect with the included clips to the battery or connect to an installed SAE battery lead Industry standard durability – Built to last The smart choice for a battery sales counter – check new batteries before sale or test returned batteries Length: 40″/100 cm Charge connector (input): 2-pin SAE (+set battery clips) Operation: fully automatic State of charge result in VOLTS and % 3 different bands for STD AGM/GEL and LiFePO4…