PEAK Smart Chargers are the new intelligent choice for your battery charger needs. These Smart Chargers are built with internal technology that can communicate with your car's battery to make sure it does not overcharge and shuts off automatically when charging is complete. PEAK Smart Chargers have up to 15 Amps of charging power and include heavy duty metal clamps to attach to the battery of your car. PEAK Smart Chargers are the smart choice! The 15 Amp Smart Chargers have LED displays that display charging amps, battery voltage, and percentage full. 15 Amp Smart Charger 15 Amp Charging Power 15A charge time: 5 hours.