PROMARINERPROSPORT 1.5A MAINTAINER•Fully automatic energy savings design •Multi-use design easily configures for on-board or portable use •Concealed mounting holes & die cut foam resting pad for portable use •Expanded LED display for power charging & auto maintain status •Maintain 12 volt lead acid (sealed & vented) batteries up to 150 amp hours •Quick connect DC clamp & ring terminal cable assemblies •Weatherproof & water resistant to IP65 •Built-in safety w/reverse polarity short circuit temperature & ignition protection •Pre-wired for easy installation •3 year warranty