Tech Battery Solutions
The CTEK Multi US 3300 battery charger (Part No. 56-158) is a versatile battery charger in a compact format that makes it convenient and easy to charge and maintain all household vehicles. The special cold mode means that you can also charge during cold winters days without problems...
Looking at the new smart chargers available it seems there are two main contenders available here in the USA: CTEK and the newer NOCO Genius...
The Motor Report
The CTEK D250S Dual is an in-vehicle dual-battery management system. It features a starter battery isolator and a five-step charger that automatically adjusts the charging voltage and current according to the auxiliary battery’s state of charge and temperature – reducing a battery’s charge time...
Motorcycle.com – CTEK MUS 4.3 Battery Charger Review
ATV.com – CTEK US 0.8 12V Battery Charger Review
Workshop Addict – CTEK Battery Analyzer and Tester Review
This nifty charger ensures that any lead-acid battery is optimally conditioned, charged and maintained. It features a range of modes depending on the level of charging needed, from maintaining the level of a stored battery to restoring maximum energy to batteries that have become seriously discharged.