Every well-equipped home garage should have a reliable automotive engine starter and battery charger. The Schumacher Electric 4-in-1 6V/12V Fully Automatic 6A Battery Charger and 55A Engine Starter with 10A Boost is a durable and reliable tool that will help you keep all your 6V and 12V batteries in top condition. With the proper maintenance, you can improve the health and extend the lifespan of your batteries. With 55A engine start, 10A boost, and 2A to 6A charge/maintain rates, the Schumacher Electric 4-in-1 can perform nearly all your battery maintenance. Push-button controls, LED indicators, and color-coded clamps make it simple to use. The heavy-duty metal enclosure helps the unit withstand tough use. Plus, it's compatible with 6V and 12V standard, AGM, and gel batteries. So don't wait. Get yours today and rediscover peace of mind for your batteries. 4-in-1 device: battery charger, engine starter, battery maintainer, and desulfator. Provides 2A to 6A battery charging and maintaining, 55A cranking engine start, and 10A boost mode. Boost mode quickly brings deeply discharged batteries back to life. Microprocessor-controlled: automatically adjusts, charges, and maintains amperage rate. Multi-stage charging to maximize battery charge, health, and lifespan. Float mode: delivers a small current when necessary to keep unit fully charged. Reverse hook-up protection. Heavy-duty construction with steel case and sturdy grip. LED indicators and push-button controls. Compatible with 6V and 12V standard, AGM, and gel batteries.