RadPower Bikes Battery Not Charging: Fixed

Rad Power Bikes Battery Not Charging

The most common reason your Rad Power Bike battery might not charge is a faulty charger. If the charger is damaged or corroded, it won’t be able to provide the correct voltage or amperage to the battery, and the battery will not charge.

I’ve been a Rad Power Bike owner for over 5 years and have put my bike through its paces. I’ve ridden it on trails, the road, and even in the snow. I’ve also had my fair share of battery charging problems. One time, my battery stopped charging altogether. I was so frustrated! I didn’t know what to do. I checked the charger for damage or corrosion, but it looked fine. I then cleaned the battery terminals for dirt and debris, which didn’t fix the problem either. I took a closer look at the battery itself. The battery was swollen, which was a sign that it was damaged. I replaced the battery, and the problem was solved.

In this article, I’ll walk you through the steps to troubleshoot and fix a Rad Power Bike battery that is not charging. I’ll also provide some tips on how to prevent your battery from malfunctioning in the future.

Potential Causes of the Charging Problem


There are several reasons why Rad Power Bikes batteries might not be charging. Some of the most common ones are:

  • Faulty charger
  • Damaged battery
  • Overheating battery
  • Charging port problems

1. Faulty charger

A faulty charger is one of the most common reasons Rad Power Bikes batteries might not charge. The charger is responsible for converting AC power from the wall outlet into DC power that can be used to charge the battery. If the charger is defective or damaged, it may not be able to deliver the correct voltage and current to the battery, which can prevent the battery from charging.

Solution for a faulty charger


You can use a multimeter to measure your charger’s output voltage and current. The output voltage should be around 48 V, and the output current should be between 2 and 2.5 A.If the output voltage or current is too low or too high, the charger may be defective and should be replaced.

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You can also try using another compatible charger to see if it works better. If the battery charges with a different charger, your original charger is defective and should be replaced.

2. Damaged battery

A dead battery is another common cause of Rad Power Bikes batteries not charging. The battery has a finite number of times it can be discharged and recharged, which affects how long it lasts. A normal Rad Power Bikes battery can go through about 800 charging cycles or last for about five to seven years. After that, the battery may not be able to store a charge and must be replaced.

You can see how your battery is doing by looking at the battery indicator on the display or the battery itself. If the indicator shows a low or empty battery even after you charge it for several hours, the battery may be dead or broken. You can also try using another compatible battery to see if it works better. If your bike runs fine with a different battery, your original battery is dead or broken and must be replaced.

3. Overheating battery

An overheating battery is another reason, though not very common, why Rad Power Bikes batteries may not charge. This can happen if the battery is exposed to high temperatures or does not get enough airflow. The battery gets warm while charging, but it needs to cool off in the air, so you should leave it uncovered with the light facing up on a flat, stable, hard, unheated surface. If the battery gets too hot, it can harm the components that power your e-bike and lower its ability to store a charge. Sometimes, an overheating battery may even start a fire.

Solution for overheating batteries

To keep your battery from getting too hot, you should not use it in hot weather or for long periods of time. You should also ensure that the battery is well-ventilated. Keep the battery in a cool, dry place if you are not using it.

If your battery gets too hot, unplug it and let it cool down. You should also check the battery for any damage. If you notice any damage, you should get in touch with Rad Power Bikes for help. You should also refrain from using batteries or chargers from other sources that may not match your Rad Power Bikes model, as they may make the battery overheat or lose capacity.

4. Charging port problems


Charging port problems are a common reason Rad Power Bikes batteries might not be charging. The charging port is the point where the charger connects to the battery. If the charging port is damaged or corroded, it may not be able to make a good connection with the charger, which can prevent the battery from charging.

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Solution for corrosion on the battery terminals

To check if your charging port is damaged, you can inspect it for any visible damage. You should also try cleaning the charging port with a soft cloth. If you see any damage or the charging port is still not working, you may need to replace it.

To replace the charging port, remove the battery from the bike. Once the battery is removed, you can disconnect the old charging port and connect the new one. Be sure to align the charging port pins correctly.

Troubleshooting Steps for Battery Not Charging

Here are troubleshooting steps to help you resolve the issue of your Rad Power Bike battery not charging.

Step 1: Check if the battery key is in the ON position.

The battery key must be in the ON position to check the battery charge level. If the key is not in the ON position, the charge level lights will not illuminate. To turn the key to the ON position, turn it fully clockwise.

Step 2: Verify that the charger and power source are working properly.

Ensure that the charger is plugged into a working outlet and that the charger is compatible with your battery. To check if the charger is plugged into a working outlet, you can try plugging in another device, such as a lamp or phone charger. If the other device works, the outlet works, and the problem is with the charger or the battery,

You can also try using a different charger to see if that makes a difference. It is possible that the charger you’re using is not compatible with your battery. To check if the charger is compatible with your battery, look at the charger label. The label should list the battery voltage and amp rating. The charger’s voltage and amp rating must match the battery’s voltage and amp ratings.

Step 3: Try charging the battery in a different location.

If you are charging the battery in a cold or humid environment, try moving it to a warmer and drier location. Cold temperatures can slow the charging process, and humid environments can cause condensation, damaging the battery.

The optimal temperature range for charging is between 50 °F and 77 °F (10 °C and 25 °C). If you’re outside that zone, find a location within that range and try charging again. Give your battery time to warm up or cool down to this Goldilocks temperature zone.

Step 4: Check if you are charging immediately after using the battery.

Some batteries may not start charging immediately after use. This is because the battery may need to cool down before charging. If you are unsure if your battery needs to cool down, you can try waiting a few minutes before charging it.

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Step 5: Check if your battery is in ship mode.

Ship mode is a feature that newer Rad Power Bike batteries are configured with to prevent the battery from providing power to the electrical system during shipping. If your battery is in ship mode, it will not charge properly. To exit ship mode, press and hold the battery button for at least three seconds. This will allow your battery to start charging properly.

Step 6: Check all charger cord connections to ensure they are fully seated.

When checking all charger cord connections to ensure they are fully seated, ensure the charger cord is plugged into the wall outlet and the battery. Also, check that the charger cord is not damaged or frayed. If you find any damage to the charger cord, replace it immediately. Loose connections can prevent your battery from charging properly. So, make sure that all connections are fully seated.

Step 7: Long charging hours to fully charge

Remember that batteries may take up to 7-8 hours to fully charge. It may not be fully charged if you have recently started charging your battery. Wait a few hours, and then check the battery charge level again.

How to Replace the Rad Power Bike Battery

How to Remove the Battery from a Rad Power E Bike

Here is a step-by-step guide on how to replace a Rad Power Bike battery:

  1. Insert your key into the battery.
  2. Push the key inward and turn all the way to the left to the “off” position. You should hear two clicks. Remove the key from the battery.
  3. Take one hand and grip the bottom of the battery. This hand will be used to push the battery upwards while the other hand grips the top and pulls. The first few times you do this, the battery will be tough to move and require some muscle.
  4. To install the new battery, reverse the steps above. Insert the battery into the battery mount.
  5. Push the battery down until it clicks into place.
  6. Turn the key to the right to lock the battery in place.


A Rad Power Bike battery not charging can be a frustrating experience, but there are several possible causes and solutions. When you follow the troubleshooting steps outlined in this article, you can often fix the problem yourself. However, if you are uncomfortable with bike repairs or unsure about any of the steps, it is always best to consult a professional for assistance.

I hope you found this article very helpful.

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