Guest Maintainer Charger 1.5A. 5A Maintainer Charger. Guest designed these Battery & Cell Phone Chargers with short circuit reverse polarity and temperature protection to guard your device against damage. This Guest 1.5A Compact Maintainer Charger is especially useful when stored for long periods since it automatically detects when the battery falls below 12.8V and will switch to float charging mode to bring the voltage back up. You can use these chargers as a portable charger or you can mount it in your favorite location to let it charge while you're away from home. Charge your 12V battery with ease by using this Guest 1.5A Miniature Charger. Specifications for Guest 1.5A Maintainer Charger: Manufacturer: Guest Color: Black Amperage: 1.5 amps Voltage: 120 volts Features of Guest 1.5A Maintainer Charger 120V AC input 1.5 Amp 12V DC output Can be used as a portable maintainer or mounted Maintenance mode starts charging the battery when it falls below 12.8V Short circuit reverse polarity and temperature protected Includes quick disconnect ring terminals and clamps cETLus certified to cUL1236 CEC Package Contents: Guest 1.5A Maintainer Charger Guest 2701A: Maintainer Charger 1.5A