What is the Best way to delay Charge ?

If you can find a timer that will handle the power it would probably be ok. I have my timer set to finish at 5 AM so the battery doesn't sit at full charge much longer than necessary. Pushing the button doesn't seem to add much to the time/effort beyond that used to do the plug-in. For other recharges during the day the button is not needed.

 

Others have documented not having power during certain times doesn't harm the charge, so you are probably safe.

Note that then if you wish to run two trips during the day, you would have to disable the timer, which might be a bigger hassle.

There was an extended discussion about reducing battery wear by minimizing the time spent at 85% -- but I don't recall any quantifiable numbers on which to make a rational decision. On the other hand, if you are on a tiered energy use program, that would provide excellent quantification for a good decision (based upon your own ability to remember to press a button...

 

The timer button is close to the PWR button to shutdown. I just make a habit of hitting it after the PWR button.

 

+1. I know I want to charge almost every night, so it is an easy habit to form. When I park in the garage I lower the front windows, so it's easy to reach in from the passenger side later to push the timer button before plugging in. I then check the green light that tells me the timer is set. I do this when I know I won't be driving again that day. If I'm going to plug in immediately for timer charging I hit the button before leaving the driver's seat. Seems to me if you are going to have a timer on the wall you would have to remember to check its operation too.

 

From my experience, I think that you don't even have to wait for your last drive of the day to hit the timer button, as long as you don't intend to charge until the timer setting. The timer seems to stay on just fine if I press the timer button on the way home, stop for gasoline (!) or groceries, continue home, and plug in for the night. The green timer light is on solid while driving, and flashing when the car is off.