EnerSys Workhog Chargers consist of a complete line of single-phase and three-phase chargers for every charging need. They are built in EnerSys' Hertner facility, which has been producing quality chargers since 1903. Workhog Chargers are fully automatic, ferroresonant chargers that provide maximum battery protection with added flexibility using a universal control board. Workhogs have two Control Board options:

Silver Charger Control Solid state integrated circuitry Voltage mismatch protection Manual low voltage override Reverse polarity and overload protection 3-high stackable and drip-proof cabinets 100% rated charger designed to return 108% of charger nameplate in 8 hours or less

Gold Charger Control All Silver Control features, plus: Displays error messages Maximum battery voltage attained, maximum charger current, amp-hours returned, total time on charge Digital ammeter/voltmeter dv/dt, time voltage Programming delay start for "off-peak" charging Blockout timer available Programmable and manual equalize charging LED charge status indicators Cool down timer to allow batteries time to cool down Max start rate override timer (redundant timer that is field programmable)