I have a ctek and its great. There is one drawback... if you find yourself with a totally dead battery, zero volts, the ctek wont charge it. It needs to detect a small voltage from the battery before it activates the charging current.
I'd suggest also obtaining a jump starter pack to start the car, run it round the block and then connect the ctek...
I'd suggest also obtaining a jump starter pack to start the car, run it round the block and then connect the ctek...