Truecharge 10/10TB 10 amp DC output Microprocessor controlled, multistage charging Charges up to two battery banks simultaneously (Truecharge 10TB) Covered terminal block with screw terminals for safe and easy connection (Truecharge 10TB) Easy battery connection with clip leads (Truecharge 10) Three settings for temperature compensation (Truecharge 10) Settings for flooded or gel lead-acid batteries Wide voltage range operation (90-135 VAC, 50/60 Hz) Automatic 21-day top-up program Protection Features Over-temperature shutdown and overload protection Ignition protected for installation in gas engine compartments (10TB) Transformer isolated for safety and to protect against electrolysis Reverse polarity protection Short-circuit and surge protection