IOTA Engineering Dls Series Power Converter/Battery Charger 45 Amp. 4 DC voltage for both DC load operation and 12V battery charging. As a power supply the unit's tightly controlled regulation allows the user to operate a nominal 12VDC load up to 45 amps. As a battery charger the unit will maintain the battery delivering its full-rated current when the battery capacity falls sufficiently low. The voltage is set to deliver its maximum current for the necessary period of time to minimize undue stress to the battery caused by heating of its cells. This helps to ensure the longest possible life of the battery. Over time as the battery nears its full capacity the DLS-45 will automatically drop the current providing a float-charge to the battery to prevent self-discharge of the cells. Features of IOTA Engineering DLS-45 Dls Series Power Converter/Battery Charger 45 Amp Compatible with the IOTA IQ4 Charge Controller Designed to withstand low transient AC line voltage Current limit and thermal/overload protection External reverse polarity fuse protection from incorrect battery connection High and normal-stage charging jack Package Contents: IOTA Engineering DLS-45 Dls Series Power Converter/Battery Charger 45 Amp IOTA Engineering DLS-45: Dls Series Power Converter/Battery Charger 45 Amp