Why is my battery not charging?

What’s your battery type?

Before diving in, make sure you’re following suggestions for the type of battery you own. Most Rad bike models use one of the following batteries, both of which can be removed from the bike, but only one of which has a key port on the battery itself. If your Rad Power Bikes battery is different from these two, some of the tips under “Rule out the Obvious” may still be helpful.

Rule out the obvious

We recommend starting with this list of reminders to rule out any obvious fixes. 

• Is the battery key in the ON position? [Standard Battery Pack only]. To check your battery charge level on the battery, the key must be in the ON position (turn fully clockwise).  If it’s not, the charge level lights will not illuminate.
  
• Bad wall outlet? Have you checked the outlet by plugging in another device to verify the outlet works?
• Too hot or too cold ? Just like cell phone batteries, e-bike batteries don’t function optimally in extreme heat or cold. The preferred temperature range for charging batteries is between 41 °F–77 °F (5 °C–25 °C). If you’re outside that range, find a location within that range and try charging again. Be sure to give your battery some time to warm up or cool down to the new temperature before plugging in the charger.
• Are you charging immediately after using the battery? Some batteries that have just been used on a bike may not start charging immediately. It’s fine to plug in the charger right away, but the charger may wait until the battery is cooled down a bit before starting the charge process.
• Battery in ship mode? Newer batteries are configured with a ship mode to ensure that the battery does not provide power to the electrical system during shipping. To exit ship mode, press and hold the battery button for at least three seconds.
  
• Loose connections? Check all charger cord connections to make sure they are fully seated. 
• Enough time on charger? Keep in mind that batteries may take up to 7-8  hours to fully charge.
• Reading the charger indicator lights correctly? Always use a Rad charger to charge your battery. The images below are a reminder on what indicator lights mean on Rad Power Bike chargers.

If Rad Charger lights look like images below, it means . . .

Charger is working as expected and is successfully charging the battery (solid red lights).

If Rad Charger lights look like images below, it means . . .

Battery has reached full charge. When the battery reaches full charge, the red light turns green.