I highly recommend buying this device. The first was delivered that could not be loaded. Charger or battery failed. He was replaced under warranty but after a few months, new problems: after a full charge when the device is turned on, the battery meter indicates the battery is empty after a few seconds, stops the inflation while the battery is actually full. Unable to carry to completion a tire from the battery. You have to use the connection to the cigarette lighter. This forces me to my bike gonlfler high pressure tires off the car.
B & D was once a quality reference. Now that they outsource to Chinese, it is better to look elsewhere.