This durable battery charger and maintainer from Schumacher is designed for lead acid and lithium batteries with 12V capacity up to 130Ah. It is microprocessor controlled. Once the charging process is complete, the unit automatically switches to maintenance mode, ensuring that the battery remains fully charged and extending its lifespan. It features protective bumpers and safeguards against reverse polarity, sparks, and overheating. There is also a suspension hook for convenience. It is ideal for winter storage as it includes a trickle charge function and overcharge protection.