Reliable, compact and lightweight. One battery bank. Switch mode technology. Switchable output modes, one for float charging and one for rapid charging. Four-stage charger, with an automatic equalization stage to periodically boost charge batteries. Useful for batteries which often sit idle for long periods. Voltage: 24 volts. cULus listed. 7 in. L x 6.5 in. W x 3.5 in. H (5.5 lbs.) Powerful chargers that offer fast, accurate battery charging at a reasonable cost.