You just plug it in to 110V-130V AC source for use. This unit charges batteries and also works as a power supply. The battery charging portion is for 12V, 14V and 16V batteries, works with normal batteries (aka Lead Acid), deep cycle, and AGM batteries.
The power supply mode will put out a constant voltage and amperage for audio and lighting displays (vs charging mode, which varies voltage/amperage to the batteries), power supply mode is not suggested to charge AGM batteries. This unit also has a wired remote display, so you can keep an eye on your battery condition. This unit has a 30 Amp output and unit dimensions are roughly 9" long x 7" wide x 3 1/2 tall. The item "InetlliSUPPLY On Board AGM/Standard Battery Charger and Power Supply 30 AMP" is in sale since Thursday, December 28, 2017. This item is in the category "eBay Motors\Automotive Tools & Supplies\Battery Testers & Chargers\Chargers & Jump Starters".The seller is "nooktranny" and is located in Pompano Beach, Florida. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay.