12V 50W – All-In-One Battery Charger, Maintainer, and MonitorThe Save A Battery™ All-In-One Battery Tool can quickly charge a weak battery, test it using the built-in load, and test the charging system, reporting sulphation and remaining battery life. It is also designed for long term storage applications, actually improving battery quality with prolonged use.The All-In-One combines the best Micro Processor controlled Battery Charger and Maintainer with the added diagnostic capabilities of an on board electrical tester. This device allows you to test the battery, charging circuits, and any electrical device without having to remove the battery. It also maintains a battery, monitors its condition, and warns if anything goes wrong. It eliminates all the guess work.Features:• Works with all size & battery types, including SLA, GEL, Dry Cell, AGM, and Spiral Cell.• Tests alternator and electrical systems.• Auto-Pulse extends battery life, prevents premature replacement.• Deep cycles weak batteries, improves battery with use.• Lightweight and Compact, mounts on wall or vehicle.• Monitors battery condition.• Fast 2x battery charging.• Audible alarm protects battery.• Polarity protection, no sparks.• Can maintain up to 4 batteries.Includes:• One All-In-One Battery Charger, Maintainer, Tester, and Monitor with Auto Pulse & Deep Cycle• 6ft Battery Terminal Cable• 6ft Alligator Clip-On Cable• 6ft Cigarette Lighter Cable• 10ft AC Power Cable• Mounting Bracket4Pack Kit Includes:• 4 One All-In-One Battery Chargers, Maintainers, Testers, and Monitors with Auto Pulse & Deep Cycle• 2 x 6ft Battery Terminal Cable• 2 x 6ft Alligator Clip-On Cable• 10ft AC Power Cable• 4 x Mounting Bracket• 1 x AC in power cable with 4 outputs• 4 x 20ft to-vehicle Extension Cables