I've been doing mechanic work for 40 years and somehow made a rookie mistake. I was in a hurry to jump off my 1995 Ford F150 with my 2017 Honda CR-v. I connected the cables backward by accident on the F-150. After connecting, I heard my CR-v engine RPMs drop, so I knew I was connected and ready to start my truck. When the truck wouldn't respond, I got out and noticed the smoke coming from both batteries. I disconnected, and some plastic had melted off the cable clamps.

My truck alternator is fried, and the battery probably is also, but I don't care so much about the truck; my concern is my Honda. It still cranks and runs perfectly like nothing ever happened. I wouldn't even be here asking this if it weren't for the fact that I want to swap the battery into my daughter's car. Her battery (She has a '17 HR-v) is original but works fine, and my battery is a month old. She is moving 3 hours away, so I wanted her to have a newer battery in her car.

Even though my car is working correctly, is there a chance I have damaged it or shortened the life of my battery? I know time will tell, but I don't want to risk it, considering that I am sending it off with my daughter in the hopes she will have a more reliable battery than what she has now. Hers is simply 3.5 years old on an 18,000-mile car. My battery is new but was briefly subjected to having jumper cables connected backward.

 

Don't know for sure.
This truly is s time will tell situation

 

i FEEL THAT YOU WOULD BE AWARE ,IF THERE WERE ANYTHING WRONG WITH THE BATTERY. SLOW STARTING,NO STARTING,MIGHT WANT TO GET IT TESTED AT AUTO ZONE OR OTHER.