Sorry, I'm a newb at this. I had an RC car about 12 years ago and haven't touched one since. I am having issues with charging the Traxxas Series 1 battery. I have my charger set at 1.2mA and the voltage set at 7.4V. Once the battery once completed charging I hooked it up to the car and the esc would just blink red. Eventually I noticed that when it was charging, the voltage was getting up over 9V on the battery. I then discharged it down to about 8V and it worked fine in the car, but only lasted a couple minutes.
Sorry if this is a dumb mistake, I just need a push in the right direction I guess.