Dang! Your Minelab Excalibur series detector is warning you that it is just about out of power. Of course, this happens right when you feel like you are getting really close to finding something in the field. Never fear, simply return to the mother ship for a quick recharge. This is all made possible with the Car Charger accessory designed to fit in your vehicle's cigarette lighter. - Excalibur Compatible - Designed to recharge the batteries in the Excalibur series of metal detectors. - Cigarette Lighter Connectivity - Charges the battery in your Excalibur metal detector from the cigarette lighter in your car. - Added Convenience - Conveniently recharge on location without needing to drive home to power up your Excalibur.