Vex v5 robot battery

We have a problem with our vex v5 battery. We put it in the charger until it is fully charged and all the led light are green, when we plug it in the brain, it works but the battery loses charge very very quickly. Or sometimes it says that the battery’s charge is too low or that it needs to be plugged into a charger in order to continue working on the brain.

We are not sure what the problem is. It keeps losing charge very quickly, it doesn’t even last for more than 5 minutes.

See this article about the V5 Battery Medic, which will help you troubleshoot these issues.