A. You need to change your vehicle charging connector. We provide a compatible female connector with our SUMATOTEK Lithium Charger. Remove the battery first, then connect/solder the wires carefully with the connector provided. Be careful to check the polarity of the connector after you have connected/soldered the wires with the connector. Also, note that in case you exchange the polarity (connect the terminals wrongly or in opposite direction) of the connector then the charger might get damaged. So be careful before you connect the battery or charger. Double-check the connections and verify if they are connected and insulated properly.