HF-Max Modular Switch Mode Battery Chargers & Power Supplies HF-Max, 2-Bay & 4-Bay Battery Charger/Power Supply (12/24 volts) HF-Max SL, 2-Bay Charger w/ LED Display (12/24 volts) HF-Max Switch-Machine/Utility Chargers (130 volts) HF-Max Battery Box (130 volts) SCR Battery Chargers & Accessories ELC (12/24/120 volts) (6-60 amps) ELC 120/6 & 24/12 Battery Pack (120 volts) (6 amps) Track Charger ELC-C 5/5 (5 volts) (5 amps) Current Monitor (12/24/48/120 volts) DC Filter Assembly