This portable 12V trickle charger is suitable for all types of lead-acid batteries and can constantly maintain a battery for a long time. It has a microprocessor-controlled program that ensures safety and automatically stops charging when the battery is full. With energy-saving design and easy operation, it is the best charging solution for cars, trucks, boats, motorcycles, RVs, and lawn tractors. Features: 1. Trickle Charger: It can charge all types of 12V lead-acid batteries, including submerged or sealed maintenance-free batteries (AGM and gel batteries). It is the best smart charger for cars, trucks, boats, motorcycles, RVs, lawn tractors or any other vehicle equipped with a 12 volt battery. 2. Fully Automatic: No need for any manual operation, just plug in the power to automatically charge and maintain the battery for a long time. A microprocessor-controlled program will monitor the entire charging process and automatically stop when the battery is fully charged. It then monitors the battery voltage and maintains the battery with a float current. 3. Microprocessor Control Program: Don't worry about overcharge, short circuit and reverse polarity. Non-sparking technology is applied. Safer floating charger with maximum voltage up to 14.8 volts. 4. Easy To Operate: Energy saving design, one LED indicator shows different charging status. Just connect the charger to the battery, plug it in. 5. Note: Be careful with the positive and negative poles of the clips (red = positive, black = negative) Specification: Material: Plastic Color: Black Size: 3.8 x 1.9 x 2.2 Inches Model: 12V/1.2A Rated Output Voltage: 12-14.8V Input Voltage Rating: 110-240V Recommended Battery Capacity: 12v / 7-10Ah Input Frequency: 50-60HZ Maximum Output Power: 15W Ripple: 120mV Efficiency (100% Load): 85% Current Limit: 1.2A Leakage Current: 0.25mA Operating Temperature: 50F- 122F Working Humidity: 5% - 95% Weight: 300g Package Included: 1 x 12V Battery Charger With 2 Clips