Interesting posts here, My question will be very simple but i am sure I will get a detailed answer.

How long do the 4xAA pack with energizer batteries last in the RC car vs. using the NiMH 5 cell battery packs?

I was told by my hobby shop that the NiMH pack will only last a few hours. I remember when I was younger the 4x AA pack lasted for days. I know there are many factors to look at and alot of what if. so to help this out some I bought some RTR Traxxas cars, the rustler 4x4, the slash 4x4, and the revo 3.3 nitro. I have Two sons 12 and 15, and I like to get them out of the tech world we live in and into some kind of hobby fun thing to make them more active. I remember how i loved RC cars when I was a kid back in the 80s and when i was in collage in the early 2000s.

This might not fit here but what are the charging times vs run time on these batteries. I plan on going to state parks and other location to run them for the whole day. I personally don't like electric RC because of how long it takes to charge a battery and then run it for only half the time it took to charge it. I do plan on getting an AC/DC charger to charge packs out in the field. I also plan on getting 4 battery packs for each car to aid in longer play times and with a dual battery charger I am still looking at about 4 hours to charge batteries before we leave, and I have no ideal how long those charging times will be out in the field on a charger connected to a real 12v car battery will take take. (I plan on taking a second car battery in case they drain my truck battery down to where i can start my truck lol)

Thank to all here for any help they can provide
XeroMyHero.