Ordered a new battery with home install in Arlington VA for my Mercedes ML350 on a Thursday to be installed on Saturday. Technician showed up at 10 and by 1pm he still was unable to get the old battery out. He was asking my teenage son for help. He then leaves the car without a battery hooked up, car was running prior to the technician showing up, battery area tore up and car no longer able to run. I had been in touch with customer service during the visit who assured me that they would have another technician out the following day. The following morning I called at opening and they are very sorry but they don't have a technician in my area until Monday. Unacceptable to leave me with a car that no longer works thanks to a technician that had no idea what he was doing. I cancelled the order and got another company out that day to fix their mess. DO NOT CHOOSE 1-800 Battery.