This DPI PCB Circuit Control Board Replacement Kit 36v DPI Battery Charger PCB without relay is the direct OEM replacement for your charger with model numbers 1-36C018-04. that do not use an AC relay on the input wires. 36V replacement PCB kit for DPI Gen-III chargers without A.C. relay control. LED’s are surface mounted and do not extend off the edge. Charge mode pre-set to Trojan battery types. Assembled to heat sink for easy installation. One-year warranty from date of shipment.