Experienced home mechanics know that a powerful wheel charger is an essential tool for maintaining their vehicles. The DieHard 300 Amp/200 Amp 12 Volt/6 Volt Automatic Wheel Charger (DH0164) delivers multiple charging modes, including 300 amp (12-volt) engine start, 200 amp (6-volt) engine start, 60 amp boost, and 6 amp/2 amp charge/maintain rates. The 300 amp/200 amp jump starting is more than enough power to start most cars, SUVs, trucks, and RVs. For those with deeply discharged batteries, the 60 amp boost mode lets them quickly add charge, reducing overall charging time and making jump starting easier. The DH0164 also features fully automatic operation with auto voltage detection, multi-stage charging, float mode monitoring, bad battery detection, and reverse hook-up protection. In addition, the unit includes diagnostic capabilities with a built-in alternator performance tester and a battery voltage tester. Heavy-duty battery clamps and 4 gauge output cables offer superior power transfer for a more reliable jump starting experience. The DH0164 is compatible with standard, AGM, gel, and lithium (LiFEPO4) batteries. Product Features:POWERFUL JUMP START: The DH0164 delivers 300-amp (12-volt) and 200-amp (6-volt) jump starts, powerful enough for larger enginesBOOST MODE: A 60-amp (12-volt) boost mode quickly restores charge to depleted batteriesCHARGE AND MAINTAIN: The DH0164 features a 6 amp/2 amp charge/maintain rateBUILT-IN DIAGNOSTICS: Monitor battery health and diagnose electrical issues in your vehicle with the built-in battery and alternator testerFULLY AUTOMATIC: The DH0164 features fully automatic operation with multi-stage charging, auto-voltage detection, float mode monitoring, and moreBATTERY TYPES: The charger/maintainer is compatible with 6-volt and 12-volt standard, AGM, gel, and lithium (LiFEPO4) batteriesSCROLLING DIGITAL DISPLAY: The digital display takes you step-by-step through the charging process, shows charging status, and displays alertsREVERSE HOOK-UP PROTECTION: Prevent damage to your battery and vehicle when the battery clamps are connected incorrectlySTORES NEATLY: Clamp storage and compact wheels allow you to easily store the DH0164 when it is not in useEFFICIENT POWER TRANSFER: Heavy-duty clamps and 4-gauge booster cables with a 12-foot total reach feature superior power transferIN THE BOX: DieHard 300-Amp/200-Amp 12-Volt/6-Volt Automatic Wheel Charger and user manual