12V 1500mA Automatic Smart Motorcycle Battery Charger Maintainer for Car/RV/ATV/Boat Automatic Battery Trickle Charger with LED Good Compatibility - Automotive battery charger compatible with all types of 12-volt lead-acid batteries, including Wet, Gel, and AGM. Suitable for automobiles, marine vessels, boats, campers, trolling motors, watercraft, riding lawnmowers, lawn tractors, and more 4 Stage Charging State - This smart charger continuously monitors the battery level and automatically adjusts the output voltage based on the battery's charge status. LED indicator shows charging progress at 25%, 50%, 75%, and 100%. Automatically stops charging when the battery is fully charged Multi-Protection - Designed with safety features including reverse polarity protection, over-temperature protection, overcharge protection, short circuit protection, and low/high voltage protection Easy to Use - No manual operation required; simply plug in and leave to charge and maintain batteries automatically. Microprocessor-controlled system manages the entire charging process and stops when charging is complete Safe and Durable - Automatically switches to maintenance mode with pulse current to keep the battery optimally charged. Ideal for long-term battery storage to prevent stratification and sulfation, helping extend battery life