6 and 12 Volt battery charging 10/6/2A charge rates 0-10A power supply mode to maintain vehicle voltage Fully automatic operation Advanced multi-phase charging process Properly charges all battery types Able to charge even zero volts (totally dead) batteries Soft Start Mode for severely depleted batteries Recondition Mode rejuvenates distressed batteries Enhanced maintenance mode for ideal long term storage Temperature compensation for more effective charging Reverse Polarity Protection and Battery Fault Detection Data rich display provides detailed feedback during charging