Can I use a Lipo Battery with a Brushed Motor?

Powering Up Your Brushed Motor: The Compatibility of Lipo Batteries Unveiled


Brushed motors and lipo batteries are two components of a remote control car or airplane that are essential for their performance. Lipo batteries are known for their ability to provide a higher voltage than their NiMH counterparts, while brushed motors are the simplest type of motor, making them easy to use and maintain.

However, as someone who has been in the world of RC for years, I have come across many individuals asking the question: can I use a lipo battery with a brushed motor? The short answer is yes, but there are several factors to consider before doing so.

Brief Explanation of What a Lipo Battery and Brushed Motor Are

A lipo battery (short for lithium polymer) is a type of rechargeable battery that uses lithium-ion technology. Unlike NiMH batteries, which typically deliver 1.2 volts per cell, lipo batteries deliver around 3.7 volts per cell.

This means that you can get more power from fewer cells compared to other types of batteries like NiMH. On the other hand, brushed motors are electric motors consisting of permanent magnets and wire coils called windings.

They work by creating an electromagnetic field that rotates around the armature (rotating part) when electricity is supplied through the brushes (hence the name). Brushed motors have been around since the early days of remote control hobbying and remain popular among enthusiasts today due to their simplicity.

The Question at Hand: Can They be Used Together?

Yes, you can use a lipo battery with a brushed motor without any issues as long as you know what you’re doing. However, compatibility between these two components depends on several factors such as voltage rating and capacity.

Understanding Lipo Batteries

Lithium Polymer batteries, better known as lipo batteries, are rechargeable batteries that have become a popular choice among hobbyists and enthusiasts alike. They are composed of cells that are encased in a flexible polymer film. Compared to other rechargeable battery types, such as NiCad or NiMH, lipo batteries offer various advantages.

Overview of Lipo Batteries and their Characteristics

Lipo batteries have a high energy density which means they can store more energy in smaller packages compared to other rechargeable battery types. They also have a low self-discharge rate which means they hold their charge longer when not in use. This makes them perfect for remote-controlled vehicles and devices where weight is an issue but power is essential.

In addition to their high energy density and low self-discharge rate, lipo batteries also offer a higher voltage output per cell compared to other rechargeable battery types. This translates into increased power output for the same physical size or weight of the battery pack.

Advantages of Using Lipo Batteries

One of the main advantages of using lipo batteries is their ability to provide high power output with minimal weight. This makes them ideal for use in remote-controlled vehicles such as drones or cars where every gram counts but maximum performance is desired.

Another advantage of using lipo batteries is their longer lifespan compared to other rechargeable battery types. With proper care and maintenance, lipo batteries can last up to three years or more before needing replacement.

Lipo batteries are relatively inexpensive when compared to other high-performance battery types such as Li-ion or NiMH. This makes them an affordable option for hobbyists who need high-performance batteries without breaking the bank.

Disadvantages of Using Lipo Batteries

Despite offering many advantages over other rechargeable battery types, lipo batteries have several disadvantages that should be considered before use. One of these disadvantages is their sensitivity to overcharging and over-discharging.

Lipo batteries must be charged using a special charger that can balance the individual cell voltages to prevent overcharging or undercharging. Overcharging or undercharging can result in permanent damage to the battery or even cause it to catch fire.

Another disadvantage of lipo batteries is their sensitivity to temperature changes. Extreme hot or cold temperatures can cause damage to the battery’s chemistry and shorten its lifespan.

If you are in need of a high-performance rechargeable battery that offers high energy density, low self-discharge rate, and longer lifespan compared to other rechargeable battery types, then lipo batteries are definitely worth considering. However, it is important to keep in mind their disadvantages such as sensitivity to temperature changes and proper care and maintenance is essential for their safe use.

Brushed Motors Explained

What are Brushed Motors and How Do They Work?

Brushed motors are the simplest form of electric motors. They have been around for over a century and are still widely used today. The basic design of a brushed motor consists of a rotor, which is a rotating part, and a stator, which is the stationary part.

The stator has two or more electromagnets that interact with the rotor’s permanent magnets to create rotational motion. When an electric current flows through the electromagnets, they become magnetized and attract or repel the rotor’s permanent magnets.

This causes the rotor to rotate, thus converting electrical energy into mechanical energy. One unique aspect of brushed motors is their commutator.

The commutator is a segmented cylinder attached to the rotor that reverses the direction of current flow in each electromagnet as it rotates past them. This ensures that the magnetic forces on the rotor are always aligned for maximum efficiency.

Advantages of Using Brushed Motors

One advantage of brushed motors is their simplicity. Since they have fewer components than more advanced motor types, they tend to be less expensive and easier to repair or replace. Another advantage is their high starting torque.

This makes them ideal for applications such as power tools or vehicles that require high torque at low speeds. Brushed motors also tend to be reliable since they don’t rely on complex electronic control systems like other motor types do.

Disadvantages of Using Brushed Motors

One major disadvantage of brushed motors is their limited lifespan. The brushes that make contact with the commutator wear down over time and need to be replaced periodically. Another disadvantage is their lower efficiency compared to other motor types like brushless DC (BLDC) motors.

Since there is physical contact between components in brushed motors, there is more friction and thus more energy loss through heat. Brushed motors are also less precise than other motor types, which makes them unsuitable for applications that require high precision and accuracy.


Brushed motors are simple and reliable electric motors that have been around for a long time. They offer high starting torque but lower efficiency compared to other motor types. While they may be suitable for some applications, their limited lifespan and lack of precision make them less desirable in certain scenarios.

Compatibility between Lipo Batteries and Brushed Motors

The Compatibility Issue

One of the most frequently asked questions in the RC hobby is whether or not a lipo battery can be used with a brushed motor. The answer is not straightforward, as there are many factors to consider before making such a decision. The compatibility issue between lipo batteries and brushed motors has been debated for years, with many hobbyists offering varying opinions on the matter.

Factors to Consider

The first factor to consider when using a lipo battery with a brushed motor is the voltage of the battery. Lipo batteries typically have higher voltages than other types of batteries, which can cause problems if the motor is not rated for that voltage.

Overvoltage can result in overheating, damaging the motor beyond repair. Another factor to consider is amperage.

Lipo batteries have higher amperage ratings than other types of batteries, which may also cause problems if the motor isn’t rated for that level of current draw. Overloading a brushed motor may cause it to burn out quickly.

The type of lipo battery being used must also be considered when determining compatibility with a brushed motor. Different types of lipo batteries have different discharge rates, which can affect how long they will last under load.

One must consider how hard they intend to push their RC vehicle. If you plan on running your vehicle at maximum speed for extended periods, then you will need a high-quality brushless setup rather than simply using a lipo battery with your old brushed motors.

Determining Compatibility

Determining whether or not your lipo battery is compatible with your brushed motor requires research and testing. It’s important to consult the manufacturer’s specifications for both products before attempting any changes or upgrades.

One way to test compatibility is by using an amp meter to measure the current draw of the motor while running it with the lipo battery. If the current draw is within the range specified by the motor manufacturer, then it’s safe to say that they are compatible.


Whether or not you can use a lipo battery with a brushed motor depends on several factors. While it may be possible to do so, it’s important to consider all of these factors before making any changes or upgrades. By doing your research and testing compatibility, you can ensure that your RC vehicle will operate safely and effectively.

Benefits of Using Lipo Battery with Brushed Motor

Increased Power Output

When it comes to powering your brushed motor, a lipo battery is the clear choice. Lipo batteries have a much higher power density than traditional NiCad or NiMH batteries.

This means that they can deliver more power to your motor in a shorter amount of time. This increased power output translates into faster speeds and better acceleration for your RC vehicle.

Additionally, lipo batteries can provide a consistent level of power throughout the entire discharge cycle. This is important because as the voltage drops, traditional batteries cannot maintain their maximum power output.

As a result, you may notice your vehicle slowing down towards the end of your run time. With a lipo battery, this problem is eliminated and you’ll enjoy consistent performance from start to finish.

Another benefit of using a lipo battery with your brushed motor is that it allows you to use higher voltage configurations without sacrificing run time or damaging the battery. Traditional NiCad and NiMH batteries are limited in their voltage output, which restricts the potential performance of your RC vehicle.

Longer Run Time

One of the biggest advantages of using a lipo battery with your brushed motor is that it provides longer run times compared to traditional NiCad and NiMH batteries. This is because lipo batteries have a higher energy density which means they can store more energy in less space.

For example, if you were previously using a 7-cell NiCad or NiMH pack with your brushed motor, switching to an equivalent 2-cell lipo pack would give you significantly longer run times without sacrificing any performance. In addition to longer run times, many high-quality lipo packs also have built-in protection circuits that help prevent over-discharging which can damage your battery or even cause it to catch fire.

Improved Efficiency

Using a lipo battery with your brushed motor can also improve the overall efficiency of your RC vehicle. This is because lipo batteries have a much lower internal resistance than traditional batteries.

As a result, they can deliver more power to your motor with less wasted energy. This increased efficiency translates into several benefits including longer run times, cooler battery temperatures, and improved overall performance.

Plus, since lipo batteries are lighter than traditional NiCad or NiMH batteries, using one in your RC vehicle can also help reduce weight which can further improve efficiency and performance. If you’re looking to take the performance of your brushed motor to the next level, using a lipo battery is the way to go.

With increased power output, longer run times, and improved efficiency, it’s hard to beat the advantages that lipo batteries bring to the table. Just be sure to follow proper safety procedures when handling and charging them to avoid any accidents or damage.

Risks Involved in Using Lipo Battery with Brushed Motor

The Danger of Overheating

Using a lipo battery with a brushed motor can be dangerous if you’re not careful. One of the most significant risks is overheating.

If you don’t use the right size battery, or if you push your motor too hard, it can easily overheat. When a brushed motor overheats, it becomes less efficient and can even fail entirely.

Furthermore, an overheated lipo battery can develop a thermal runaway situation where it starts to smoke and eventually catch fire. To avoid this potential outcome, always make sure to use the correct size battery for your motor and monitor its temperature closely while in use.

The Risk of Fire or Explosion

One of the biggest risks involved in using a lipo battery with a brushed motor is the possibility of fire or explosion. Lithium polymer batteries are known for their high energy density, which means they pack a lot of power into a small package.

This makes them ideal candidates for powering RC vehicles with brushed motors as they provide excellent power-to-weight ratios. However, if not handled properly, these batteries can be extremely dangerous.

The risk of fire or explosion increases when lithium-ion batteries are punctured, damaged during charging/discharging cycles or exposed to high temperatures. Therefore, it’s essential to follow proper guidelines when handling these batteries to minimize any potential risks associated with their use.

Proper Handling Techniques

If you’re going to use a lipo battery with your brushed motor-powered RC vehicle safely, proper handling techniques must be followed at all times. Always make sure that your battery is fully charged before using it and never exceed its recommended voltage limits while in use.

Additionally, – Protect your batteries from damage during charging/discharging

– Store them at room temperature – Use a reliable charger that is designed for lipo batteries

– Avoid overcharging or over-discharging your battery Following these guidelines will help ensure that you can use your lipo battery safely with your brushed motor without any danger of fire or explosion.


While using a lipo battery with a brushed motor can provide significant benefits in terms of power and efficiency, it’s essential to understand the risks involved as well. Overheating and the potential for fire or explosion are two key dangers that need to be taken seriously when working with these types of batteries.

To avoid these risks, it’s essential to use the correct size battery for your motor, monitor its temperature closely throughout use, and follow proper handling techniques at all times. With this in mind, you can enjoy the benefits of using a lipo battery with your brushed motor without any unnecessary risk involved.

Safety Precautions When Using Lipo Battery with Brushed Motor

Proper Charging Techniques for Lipo Batteries

When it comes to using a lipo battery with a brushed motor, it is crucial to understand the proper charging techniques for lipo batteries. Failure to charge your lipo battery correctly can have severe consequences, including fire or even explosion. Therefore, it is essential to follow specific guidelines when charging your lipo battery.

Firstly, use a charger that is specifically designed for lipo batteries. Avoid using chargers that are not designed explicitly for these types of batteries as they can overcharge and damage your battery.

Secondly, never leave your battery unattended while charging. Always keep an eye on it, and if possible, charge it in a fireproof container or bag.

Thirdly, make sure you charge your battery in an area that is well-ventilated. Lipo batteries can release harmful gases during charging, so ensure you are doing this in a safe environment.

Make sure you always follow the manufacturer’s instructions when charging your battery. This will ensure that you are using the correct voltage and amperage levels.

Use of Protective Gear When Handling Batteries

When using a lipo battery with a brushed motor, always wear protective gear when handling the batteries. This gear should include gloves and safety glasses at minimum.

Lithium polymer batteries contain flammable electrolytes and chemicals that can be harmful if they come into contact with skin or eyes. Additionally, these substances can produce harmful fumes when heated or exposed to air.

Wearing gloves while handling lithium polymer batteries prevents direct contact between bare skin and the chemicals inside them. Safety glasses protect the eyes from any potential splashes of hazardous substances.

, if you do not take proper precautions while handling these types of batteries, you risk harming yourself or others. Investing in protective gear is a small price to pay for the safety of yourself and those around you.

Bonus Tips

– Never attempt to modify or repair a lipo battery on your own. Seek professional help if your battery needs repair. – Dispose of lipo batteries appropriately.

Do not throw them in the trash as they can be explosive and hazardous to the environment. Locate a specialized recycling center near you that accepts lipo batteries for proper disposal.

– Store lipo batteries in a cool, dry place. Avoid exposing them to extreme temperatures or direct sunlight as this can cause them to degrade over time.

Conclusion: Can I use a lipo battery with a brushed motor?

Summary of main points discussed in the article

After careful examination of the characteristics and compatibility factors, it is clear that using a lipo battery with a brushed motor is possible but requires caution. Lipo batteries offer many benefits such as increased power output, longer run time, and improved efficiency.

However, they also pose several risks such as overheating issues and the risk of fire or explosion if not handled properly. When considering using a lipo battery with a brushed motor, it is important to ensure that they are compatible.

Factors to consider include voltage rating, discharge rate, and capacity. It is also important to use appropriate safety precautions such as proper charging techniques and protective gear when handling batteries.

In my opinion, while the idea of using a more powerful lipo battery may seem appealing for increased performance, it is crucial to prioritize safety above all else. The risks involved are simply not worth it if proper care and attention are not given to handling these high-powered batteries.

Overall, yes you can use a lipo battery with a brushed motor but only if you take the necessary precautions. It is essential to fully understand the risks associated with these batteries before attempting to use them in conjunction with any other electrical components.

While it may be tempting to push the limits with powerful technologies like lipo batteries and high-performance motors, it’s important not to lose sight of safety concerns. With proper care and attention given towards safe handling practices though there’s no reason why you can’t get an extra kick out of your projects while keeping things running smoothly!