Help car won’t start

[Chris_Ward666]

Could someone help me my Clio will run fine for about 15 minutes at a time then the lights will just turn off and windows will stop working they will all stop till I pull over and start the car up again also the battery will die and will not start when I put jumper leads on it sounds asif it’s going to then all stop again really don’t know what to do at this point?
Thank you

 

[DaveL485]

Sounds like you need a new battery and then check the alternator is charging properly.

 

[Sir Nancy Flowers]

As above. This happened to mine just a couple of weeks ago. Most likely to be the alternator based on what you've described. Take your battery off, give it a full charge and re fit it. Once it's back in, use a multimeter to test if the voltage of the battery increases when the cars running. It's easy to do. If the voltage drops instead of going up when the car is running, your alternator is gone more than likely.