Fixing Traxxas NiMH Batteries with Low Charge: Tips and Solutions

Fixing Traxxas NiMH Batteries with Low Charge: Tips and Solutions

Traxxas NiMH batteries are a popular choice among hobbyists who use Remote Control (RC) cars, boats, and airplanes. These batteries offer a high energy density for long run times, fast recharging, and durability compared to other battery types. Despite their efficiency, at some point, you might encounter a Traxxas NiMH battery that won’t charge or depletes very quickly. This frustrating issue can result from different causes, such as overuse, damage or loss of the battery connector, poor storage or usage, and a charger with the wrong settings. This article examines the common reasons why Traxxas NiMH batteries become too low to charge and provides solutions to revive them to optimal performance. Additionally, the article explains the symptoms of a faulty battery, steps to restore it, and maintenance tips to extend the battery’s lifespan. Whether you are new to RC hobbies or are a seasoned pro, this article serves as a comprehensive guide to help you solve Traxxas NiMH battery issues efficiently.

Causes of Traxxas NiMH Battery Too Low to Charge

Traxxas NiMH batteries can lose their charging capacity for several reasons, including:

  • Overuse or over-discharge of the battery.
  • Losing or damaging the battery connector.
  • Use of a charger with the wrong settings, which can cause overcharging, undercharging, or overheating.
  • Poor battery maintenance such as improper storage, which can result in corrosion, short circuits, or self-discharge of the battery.

If you suspect any of these causes, it’s best to examine the battery and charger closely before attempting any solutions. You can also contact the manufacturer’s customer support or seek help from online forums and communities. In the next paragraph, we’ll look at the symptoms of a Traxxas NiMH battery too low to charge.

What to do if your Traxxas battery won’t charge?

If your Traxxas battery won’t charge, here are some troubleshooting steps you can try:

  • Ensure that the charger is properly plugged in and turned on.
  • Check the battery and charger connections for any damage or debris, and clean them if necessary.
  • Try charging with a different outlet or power source.
  • If the battery is over-discharged, it may not charge. Use a balance charger or a discharge tool to bring it up to the minimum voltage.
  • If none of these steps resolved the issue, it may be time to consider a replacement battery or charger.

For more information, visit the Traxxas website or contact their customer support.

Symptoms of a Traxxas NiMH Battery Too Low to Charge

Here are some telltale signs that your Traxxas NiMH battery may be too low to charge:

Symptom Cause Solution
The battery not accepting a charge The battery may have self-discharged or may be too low for the charger to recognize. Try resetting the charger by unplugging it from the power source and then plugging it back in. Also, disconnect and reconnect the battery several times to restore the internal circuitry.
Short duration of use after fully charging The battery may have lost its capacity to hold a charge due to overuse or over-discharge. Try restoring the battery using a high-quality charger or discharger, or consider replacing the battery with a new one.
The battery quickly depletes and no longer powers the RC car The battery may be damaged or may have reached the end of its lifespan. Consider replacing the battery with a new one, or if it is under warranty, contact the manufacturer for a replacement or repair.
The orange LED light on the charger does not illuminate The charger may be malfunctioning or the battery may not be properly connected. Check the battery connection, use a different charger, or contact the manufacturer for assistance.

If your Traxxas NiMH battery shows any of these symptoms, don’t panic! Most of the time, you can restore or replace the battery and get back to enjoying your RC vehicle. In the next section, we’ll discuss some steps you can take to revive your Traxxas NiMH battery.

Can a battery be too low to charge?

Yes, a battery can be too low to charge, especially for lithium-ion batteries commonly used in modern devices. Charging a deeply discharged lithium-ion battery can damage its internal components and reduce its lifespan. Here’s what you need to know:

  • If your lithium-ion battery has been discharged below 2.5 volts per cell, it may be permanently damaged.
  • Some chargers can detect if a battery is too low to charge and will refuse to do so to prevent damage.
  • It’s recommended to charge your devices before the battery level drops to critical levels.

If you need to replace your battery, be sure to buy from reputable brands or manufacturers such as Duracell or Energizer to ensure better quality and longevity.

Steps to Restore a Traxxas NiMH Battery

To restore a Traxxas NiMH battery that is too low to charge, try the following steps:

  • Use a high-quality charger designed for NiMH batteries. Choose a charger with adjustable amperage and peak detection to prevent overcharging or undercharging.
  • Disconnect and reconnect the battery multiple times to reset the internal circuitry. This can sometimes allow the battery to accept a charge again.
  • Use a method called “zapping” where you shock the battery to renew its life. This involves applying a short burst of high voltage to the battery to break up any sulfation that may have built up on the plates. Note that this method can be dangerous if not done properly, so only attempt it if you are experienced with batteries and have the proper equipment.
  • Use a discharger to remove the residual charge and safely charge the battery. A discharger is a device that can discharge the battery to a specific voltage or capacity, allowing it to accept a full charge again. Check with your manufacturer for recommended discharging guidelines.

Keep in mind that not all Traxxas NiMH batteries can be restored. If your battery is too far gone, it may need to be replaced. In the next section, we’ll discuss some tips for maintaining your Traxxas NiMH battery to help prolong its life.

How do you revive NiMH batteries?

Here are a few steps to revive NiMH batteries:

  • Discharge the battery completely.
  • Charge the battery completely.
  • Repeat the previous steps 2-3 times.
  • If the battery still doesn’t hold a charge, consider purchasing a NiMH battery charger or replacing the battery.

There are many NiMH battery chargers available online, such as the Tenergy TN438 Charger and the AmazonBasics Ni-MH AA & AAA Battery Charger.

Maintenance Tips to Prolong the Traxxas NiMH Battery Life

To prolong the life of your Traxxas NiMH battery, try the following tips:

  • Store the battery at room temperature and away from direct sunlight. High temperatures can shorten the battery’s lifespan and cause it to lose capacity.
  • Reduce the discharge rate by using a lower gear ratio on your RC car. Higher gear ratios can put more strain on the battery and cause it to discharge more quickly.
  • Utilize a battery monitor to frequently check the battery voltage and prevent overuse. Some RC cars come with built-in battery monitors, while others require a separate device.
  • Avoid over-discharge to prevent a condition where the battery may not recharge. NiMH batteries can become damaged if they are fully discharged and left in that state for an extended period.

By following these maintenance tips, you can help extend the life of your Traxxas NiMH battery and prevent it from becoming too low to charge in the first place. Additionally, investing in a high-quality charger and using it properly can also help keep your battery in good condition. If you need to replace your Traxxas NiMH battery, be sure to purchase one that is compatible with your RC car and charger.

If you want to purchase a high-quality Traxxas NiMH battery, visit Traxxas official website to explore different options.

How can I make my Traxxas battery last longer?

– Store your Traxxas battery at room temperature and avoid extreme heat or cold.
– Charge your Traxxas battery only with a Traxxas charger specifically designed for your battery.
– Avoid over-discharging your Traxxas battery by setting a low voltage cutoff on your ESC.
– Use a battery protector circuit or overcharge protection circuit to prevent overcharging and overheating.
– Consider purchasing a high-quality LiPo battery with a higher mAh rating for longer run times.

Note: Traxxas offers a range of high-performance batteries and chargers specifically designed for their RC vehicles. You can find more information on Traxxas’ website.


In summary, a Traxxas NiMH battery that is too low to charge can be frustrating, but there are solutions to the problem. The causes of the issue include overuse or over-discharge, losing or damaging the battery connector, or using a charger with the wrong settings. Symptoms include the battery not accepting a charge, a short duration of use after fully charging, and the battery quickly depleting and no longer powering the RC car. To restore a Traxxas NiMH battery, you can use a high-quality charger, disconnect and reconnect the battery multiple times, zap the battery, or use a discharger. Maintenance tips to prolong the battery life include storing the battery at room temperature, reducing the discharge rate, utilizing a battery monitor, and avoiding over-discharge.


Taking care of your Traxxas NiMH battery is critical to ensure it lasts for a long time and remains functional. Proper storage, lower discharge rates, monitoring, and avoiding over-discharge can go a long way in prolonging its life. If your battery is already too low to charge, you can try the solutions shared to restore it to full functionality. Furthermore, always make sure you use suitable equipment and ensure that the battery is compatible with your RC car and charger to avoid any unnecessary damage. By following these tips and solutions, you can keep your Traxxas NiMH battery working like new and avoid the hassle of having a dead battery when you want to use your RC car.