Specs:

• 12 Volt 5 Amp with Test Light
  
• Charges Only
• 100-240V~50/60Hz 2A Input
• 12V~5A Output
• AC to DC

Features:

• Charges and Maintains Your Battery
• Great for Hydraulic Dump and Lift Trailers
• Displays Charging Status
• Test Button Allows You to Check Battery State
• Switch Mode Cuts Power When Battery is Fully Charged
• Durable Cover on Shore Power Plug 
• Battery and Alternator Condition Tester