Your batteries usually have a lifespan of about 3 years. Allowing the batteries to fully discharge or not properly maintaining water levels will make their life much shorter. You will know when it is time to replace the batteries because you will notice:
  • You can no longer ride for as long as you used to on one charge.
  • Batteries discharge quickly.
  • The golf cart has weakened significantly.

When you are in this situation, the best thing to do is replace the batteries. If you were to leave the batteries in and wait it out until they are totally shot, you can risk damaging other components in the golf cart like the controller or solenoids.