Battery Maintainer 12V 750mA Automatic Battery Charger Automotive Automatically Charges and Maintains Battery Power Automated switch from charge to float - Suitable for charging batteries up to 125 ah input 120v AC Protects against Short Circuit and Overcharge - Waterproof (Submersible Rating of IP 68) Safe for all Lead Acid Batteries - LED Indicator Light 2 Year Manufacturer Warranty