The series charger workhorse Charges 2-60 cells from 0 to 6 amps. With state-of -the-art, anti-spark delay, voltage is shut off when current is interrupted, eliminating sparking. Added safety feature provides greater protection when charging 10 batteries where the voltage approaches 158 volts DC. Output current can be smoothly adjusted over full range of front panel control. Polarity protection for operator and equipment safety. Nine charging leads included. Anti-spark delay timer protection for safety during hook-up Full wave silicon rectifier Isolated transformer for safety Circuit breaker protection Easy-to-remove clamps Heavy-duty design for safe operation and quality performance Warranty: 1 year limited Made in USA DC Output: 6 Amp 0-158 Volts AC Input: 120V, 13 Amps, 60HZ Charging Capacity: 1 to 60 cells Adjustable Ammeter DC leads 8ft. AC cord 6.5ft Shipping dimensions: (HxLxW) 16″x19″x16″ Weight: 45 lbs.