 
  humbertc11125
USA
  
        
          Asked 
  
            — Edited 
  
        
      
    My JD robot will not hold a charge for more than 15 minutes. I am not sure if my charger is bad or my battery is bad. My other JD robot is also having trouble holding a charge with its charger. What is wrong with my battery?

When batteries wear, they will not hold a charge. Do not fear, the battery can be replaced with a brand new LiPo Robot Battery 7.4v 1300mAh
Recommended reading for battery care for optimal longevity is here: https://synthiam.com/Tutorials/Lesson/26?courseId=1
Here are instructions to change the battery in JD
Have fun