The Xtc-150 Is The Perfect Combination Of A Battery Tester And Fast Charger. Fully Automated,Just Connect The Battery Enter The Battery Rating And Temperature,And The Unit Will Automatically Perform A Test And Charge Analysis. If The Battery Needs Charging Before The Testing,The Xtc-150 Will Automatically Perform That Function Utilizing Autometers Fast Charging Protocol. Most Batteries Can Be Diagnosed And Fully Charged In Under 30 Minutes.