12V | Advanced 4.3A Charging and Testing in One Unit.The MUS 4.3 TEST&CHARGE combines an advanced microprocessor controlled battery charger with a battery, starter and alternator testing function to keep your battery in the best condition possible.Charging: The MUS 4.3 TEST&CHARGE provides excellent performance on batteries from 1.2Ah up to 110Ah. The charger solves a broad range of battery problems and features include a patented automatic desulphation program and a special reconditioning function that will revive and restore deeply discharged and stratified batteries. The patented Float/Pulse maintenance makes the charger ideal for long-term maintenance. The Recond and ‘Snowflake’ modes operate individually or together in both 0.8A and 4.3A programs providing great flexibility for the user. Testing: Three easy to use programs tests battery voltage, start power, and alternator performance to provide a complete picture of battery and vehicle charging system health.Features:Automatic “connect and forget” 8 step charging for batteries 1.2Ah-110AhAutomatic desulphation, AGM, Cold Weather and reconditioning programsEasy to use battery, starter and alternator voltage testing functionSafe, no sparks, short circuit and reverse polarity protected5-year warranty WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov This warning is being provided to comply with the State of California's Proposition 65.