Product Description Save A Battery 50 W 36V charger and maintainer Amazon.com The Save A Battery 50-Watt 36-Volt Solar Battery Charger and Maintainer is one of the most versatile battery charging devices on the market. It harnesses the power of the sun, allowing you to recharge any 36-Volt battery far from other power sources. This unit also maintains, deep cycles, tests, monitors, and alerts you to battery problems. You can even use the on-board voltmeter to check an entire vehicle’s electrical wiring. This compact unit is highly portable, and the innovative modular cord system makes it easy to connect with virtually any vehicle. The Save A Battery is easy to read and operate. Save Time and Money by Keeping Your Battery Charged with Solar Power It's a fact: batteries naturally discharge over time, even when not connected to a vehicle. If you own a classic car, RV, motorcycle, or any other vehicle that isn't used regularly, you may have experienced this first-hand. Not only is it frustrating, but a dead battery also costs you time and money to recharge or replace. The Save A Battery 50-Watt 36-Volt Solar Battery Charger and Maintainer keeps batteries charged, even when AC power isn't available. The durable, waterproof solar panel is engineered with amorphous technology that works in cloudy or low lighting conditions. This 50-Watt model is ideal for RVs, larger trucks, or situations where there is a constant drain on the battery. It extends the life of live batteries by monitoring and maintaining their condition, and can recharge dead batteries without needing an external power source. A built-in voltmeter allows you to diagnose wiring problems with your vehicle. The Save A Battery 50-Watt 36-Volt Solar Battery Charger and Maintainer is also equipped with a load tester that provides a way to test and cycle weak batteries and bring them back to life. Safe and Easy to Set Up and Operate The Save A Battery 50-Watt 36-Volt Solar Battery Charger and Maintainer comes equipped with numerous safety features and is a snap to set up and use. It won't cause sparks when you connect it to your vehicle, and will alert you if it has been connected in reverse polarity. The audible Low Voltage Alarm monitors battery voltage and will sound before the battery is damaged by discharging too much. The large LCD screen makes it easy to monitor battery voltage. The LCD display can even be turned off while charging or maintaining for long-term storage. The Save A Battery 50-Watt 36-Volt Solar Battery Charger and Maintainer also features an innovative modular cable design that makes it easy to connect to any battery or vehicle. You can choose to connect with the alligator clip cable, or with the cigarette lighter adapter cable. All cables come with gold-plated connectors that are suited for long cable runs and improved reliability in harsh environments. The bright yellow cable jacket is easy to see, and helps eliminate accidental disconnects. Additional cables (sold separately) are also available with different connection types and longer lengths. What's in the Box? The Save A Battery 50-Watt 36-Volt Solar Battery Charger and Maintainer comes with a 36-Watt amorphous solar panel, a 6-foot alligator clip cable, a 6-foot cigarette lighter adapter cable, and a mounting bracket for permanent wall or vehicle installation.