Sorta like a clothes dryer.
Throw some clothes in there, turn it on for a month and then discover, ohshoot I ahould have set the temperature to the delicate fabrics setting.
I wish my ex would have been plug-n-play, but few things that work right outside the world of computers can make that claim honestly.
NinerBikes makes excellent points above.
But then someone SHOULD NOT BE THE LEAST AFRAID to purchase one of these things. Tweaking is SIMPLE. Buy one, come back to this forum and you will be led step by simple step. No soldering, nothing weird or exotic. Wind up spring timers like a 12 hour Intermatic, are so simple my 13-year old granddaughter installed her own 15-minute timer in their home bathroom.
These things are too good to pass up. Want THIRTY THREE AMPS worth of battery float ability? The pot can be twisted to anything you wish. 12.8 volts for stovepipe wells, or 15.0 volts float for Prudhoe Bay.
Buy one, follow directions here, point-by-point and this is the answer to stupid integrated circuit battery death. You need to purchase a twelve hour spring loaded INTERMATIC timer module online, then a plastic receptacle box. Wear Nitrile gloves if you decide to work around the unit when it's plugged in.
To simplify this. Buy timer and power supply. You can adjust the thing to render the same voltage as what your car alternator voltage regulator does for a living at a 33 amp charge rate. Maxx'ed out the timer will give 12 hours of charging the same as a car gives it's battery on a 12-hour trip.
