Let's say I go on a trip to visit a friend for the weekend and his/her apt does not have an easily accessible electric outlet. Then let's say I drive while I am there and then drive home. This is a very very common scenario for me where I might rack up 1000 miles without being able to recharge.

I threw out the 5k number as something where I would be extremely confident I would never hit before being able to recharge, not as a number of miles I go frequently.