Check the listing for details. 12V to 24V Converter for ZERO BREEZE MARK 2 Battery. Condition: New. Listed at 99.00 USD. Product DescriptionThe 12V to 24V DC-DC Converter is for powering the Mark 2 AC and charging the MARK 2 battery from a 12V power source.Input: 9-16VOutput: 24VMax Power: 280W (It is the max capability it can transfer the power. It doesnt generate power.)There are two functional connectors, one is for 12V car cigarette lighter interface, and the other is for wiring directly to your 12V battery positive and negative electrodes.*Please note:1. Dont power your Zero Breeze Mark 2 AC by this converter if your 12V battery can not provide sufficient and consistent power(over 300W or over 25A current). Damage may result from incorrect usage.2. When setting up your 12V to 24V Inverter, be sure to connect the negative and positive poles correctly to the corresponding connections on the power source.Damage may result from incorrect connection.3. To charge your Zero Breeze Mark 2 Battery with a carcigarette lighter connection you must ensure that the interface is a 12V power supply with a 15A fuse. 1 year warranty