CTEK 40-658 Lithium & Lead-Acid Smart Battery Charger Maintainer

The CTEK MUS 4.3 TEST & CHARGE is an advanced, microprocessor-controlled battery charger that provides an all-encompassing solution for testing, charging, and maintaining your vehicle's battery. Starting in 2027, every C8 Corvette will be equipped with a lithium battery, and GM official training documents state that a charger is a necessity if the car sits for more than a week. This charger is your ultimate defense against dead batteries and premature wear during periods of inactivity.

Designed for safe and simple "connect and forget" operation, this unit recovers, charges, and maintains both lead-acid and lithium-ion batteries to maximize their lifespan. Prioritizing vehicle and user safety, it delivers exceptionally clean voltage with zero surges or spikes and features spark-free, reverse-polarity protection so you never have to disconnect the battery from your vehicle to charge it.