Schumacher Electric Fully Automatic Wheeled Battery Charger and Engine Starter 6-in-1, SC1309-200 Cranking Amps, 6 Volt and 12 Volt for Car, SUV, Truck, and Marine Batteries

6-in-1 Device: Battery charger, battery maintainer, engine starter, desulfator, battery tester, and alternator tester, Powerful Performance: 200 cranking amp engine start, a 40-amp boost mode, and 6-amp<>2-amp (12-volt) and 2-amp (6-volt) charge/maintain rates, Fast 40-Amp Boost Mode: With the 40-amp boost charging mode you can bring even deeply discharged batteries back to life by quickly adding battery charge, Built-In Diagnostics: Features a built-in battery and alternator tester that determines charge level and helps diagnose electrical problems, Microprocessor Controlled: After gathering information from the connected battery, the microprocessor adjusts voltage and charge, allowing fast charging without negatively impacting battery capacity and longevity, Multi-Stage Charging: Which utilizes an advanced charging algorithm to boost battery charge, health, and lifespan, Float Mode Monitoring: While in float mode, a battery charger and maintainer delivers a small current when necessary to keep the battery fully charged, Wide Compatibility: 6-volt and 12-volt standard, AGM, and deep-cycle batteries, In the Box: SC1309 6-in-1 200 Cranking Amp 6-Volt/12-Volt Fully Automatic Battery Charger and Engine Starter and a user manual