How Long To Charge Makita Battery?

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Last Updated on May 22, 2023 by Ellis Gibson (B.Sc. in Mechanical Engineering)

The charging time for a Makita battery depends on its capacity. For example, an 18V LXT Lithium-Ion 2.0Ah battery (BL1820B) charges in approximately 25 minutes with a DC18RC charger. A 5.0Ah version (BL1850B) takes around 45 minutes. Always refer to your specific battery model and charger for accurate information.

In the realm of power tools, efficient and reliable batteries are the unsung heroes, ensuring uninterrupted operation and longevity of your tools. Makita, a renowned global leader in the power tools industry, has earned its reputation not only through its robust tools but also through its high-quality batteries. Makita batteries, celebrated for their performance and durability, require effective charging to deliver optimal results. In this guide, we’ll explore the specifics of charging Makita batteries – a crucial factor in maximizing your tool’s performance, extending battery life, and ultimately getting the best value from your investment.

Understanding Makita Batteries

Before we dive deep into the intricacies of charging Makita batteries, it’s essential to familiarize ourselves with the underlying concepts and details of Makita batteries. This understanding lays the foundation for appreciating the charging process, ensuring the battery’s optimum performance, and preserving its longevity. Let’s get started by looking into what these batteries entail, their varieties, and the significance of battery specifications in the charging process.

Makita batteries are recognized for their power, performance, and resilience. They are engineered to be lightweight and compact without compromising their high output, making them integral components of Makita’s power tool range.

Different Types of Makita Batteries

When it comes to types, Makita batteries primarily come in two forms: Lithium-ion and Nickel-Cadmium.

1. Lithium-ion Batteries: These are the most commonly used in the latest Makita tools due to their high energy density, light weight, and slow loss of charge when not in use. A typical Makita Lithium-ion battery, such as the BL1850B, has a voltage of 18V and a capacity of 5.0 Ah, providing substantial run time for power tools.

2. Nickel-Cadmium Batteries: They are more robust and can endure harsh conditions. However, they are heavier and suffer from the “memory effect,” reducing their overall efficiency. A classic example is the Makita 9000/9001/9002, which operates at 9.6V with a capacity of 1.3 Ah.

Understanding Battery Specifications and Its Role in The Charging Process

Understanding the technical specifications of your Makita battery is crucial to comprehend the charging process better. Here are some critical specs to consider:

1. Voltage (V): It represents the potential difference that pushes the electric current through the circuit. For instance, most Makita power tools use an 18V battery system.

2. Capacity (Ah): It measures the energy storage capacity of the battery. Higher the capacity, longer the tool runs. For example, a Makita BL1860B Li-ion battery has a capacity of 6.0 Ah.

3. Charge Time: This is the approximate time it takes to fully charge the battery from a depleted state. For instance, Makita’s DC18RC charger can charge a BL1860B battery in approximately 55 minutes.

Understanding these specifications can help you estimate the required charging time and maximize battery efficiency.

In the next section, we’ll explore the factors influencing the Makita battery’s charging time to help you get a better understanding of how to manage and maintain these essential power tool companions. So, stay tuned!

Table 1: Comparison of Makita Battery Types

Battery TypeExampleVoltage (V)Capacity (Ah)Charge Time (Approx.)
Lithium-ionBL1850B185.045 min
Nickel-Cadmium9000/9001/90029.61.360 min

Factors Influencing Makita Battery Charging Time

Having gained a clear understanding of Makita batteries, let’s navigate the factors that influence the charging time of these power tools’ lifeblood. Battery capacity, type, age, and health, as well as the charger used, play a pivotal role in determining how long it will take for your Makita battery to charge fully. To ensure efficient tool performance and battery longevity, understanding these aspects is indispensable.

Battery Capacity

Capacity, measured in Ampere-hours (Ah), is a significant factor in determining the charging time of a Makita battery. Higher capacity batteries have more energy storage and thus require longer charging times. For example, a Makita 18V LXT Lithium-ion 5.0Ah battery (BL1850B) will need more time to charge fully compared to a 2.0Ah battery (BL1820B) when using the same charger.

Battery Type

The type of battery—whether Lithium-ion or Nickel-Cadmium—also impacts charging times. Typically, Lithium-ion batteries charge faster than Nickel-Cadmium batteries due to their higher energy efficiency and lower self-discharge rate. However, both types require specific chargers designed for their unique charging characteristics to ensure optimal charging times and battery health.

Battery Age and Health

As batteries age, their performance and efficiency decrease, impacting the charging time. An older battery might take longer to charge due to reduced capacity. Similarly, a battery’s health, depending on factors such as usage patterns and maintenance practices, can influence charging times. Overused or poorly maintained batteries often require more time to charge.

The Charger

The kind of charger used can significantly affect the charging time. Makita’s Optimum Charger, for instance, communicates with the battery’s built-in chip throughout the charging process to optimize battery life and actively control current, voltage, and temperature for faster charging. On the contrary, a non-Makita charger may not offer these benefits and could potentially harm your battery or increase charging times.

Understanding these factors will help you ensure that your Makita battery is charged correctly, maximizing its performance and lifespan. Next, we delve into the specifics of how long it takes to charge various Makita battery models, so stick around!

Table 2: Factors Influencing Makita Battery Charging Time

FactorImpact on Charging Time
Battery CapacityHigher capacity batteries take longer to charge
Battery TypeLithium-ion batteries typically charge faster than Nickel-Cadmium batteries
Battery Age & HealthOlder or poorly maintained batteries may take longer to charge
The ChargerUsing Makita’s Optimum Charger can reduce charging time

How Long To Charge Makita Batteries?

Now that we have explored the factors that influence the charging time of Makita batteries let’s delve into specific charging times for various Makita battery models. This practical knowledge, coupled with a general guideline for estimating Makita battery charging times and some tips to maximize battery life during charging, will ensure you get the most out of your power tool.

Specific Charging Times for Different Makita Battery Models

Makita has a range of batteries to cater to various power tool needs, each with a distinct charging time. Below is an approximate charging time for different Makita battery models when using Makita’s Optimum Charger:

1. Makita BL1815 Battery (18V, 1.5 Ah): This battery takes approximately 30 minutes to charge fully.

2. Makita BL1830 Battery (18V, 3.0 Ah): It takes roughly 60 minutes to reach full charge.

3. Makita BL1850 Battery (18V, 5.0 Ah): Charging this battery to full capacity requires about 45 minutes.

4. Makita BL1860 Battery (18V, 6.0 Ah): This high-capacity battery takes approximately 55 minutes to charge fully.

A General Guideline to Estimate Makita Battery Charging Times

As a general rule of thumb, charging time in hours is roughly equal to the battery capacity in Ah divided by the charger output in Amperes (A). Therefore, a 3.0 Ah battery charged with a 3A charger should be fully charged in about an hour.

Tips to Maximize Battery Life During Charging

To maximize battery life during charging, consider the following tips:

1. Use the Right Charger: Always use Makita’s Optimum Charger or a Makita-approved charger for your battery. These chargers are designed to optimize battery life and reduce charging time.

2. Cool Down Before Charging: If the battery is hot after use, allow it to cool down before charging. High temperatures can damage the battery and reduce its lifespan.

3. Maintain Regular Charging: Don’t wait for the battery to deplete completely before charging. Regular charging can prolong battery life.

Armed with this knowledge, you can ensure efficient charging and extended battery life for your Makita power tool. In the next section, we will explore why using Makita’s Optimum Charger is crucial for your battery’s performance and longevity.

Table 3: Approximate Charging Times for Different Makita Battery Models

Battery ModelVoltage (V)Capacity (Ah)Approximate Charging Time
BL1815181.530 min
BL1830183.060 min
BL1850185.045 min
BL1860186.055 min

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Importance of Using Makita’s Optimum Charger

When it comes to charging your Makita battery, choosing the right charger is crucial. Makita’s Optimum Charger is engineered to provide a host of features and benefits that go beyond merely charging your battery. Let’s delve into understanding this advanced device, its impact on battery life and charging time, and why resorting to non-Makita chargers might be detrimental to your battery.

Understanding Makita’s Optimum Charger: Features and Benefits

Makita’s Optimum Charger offers an intelligent charging solution designed to optimize battery life and charging efficiency. Here are some salient features and benefits:

1. Fast Charging: Makita’s Optimum Charger boasts a fast charging system, capable of charging a Makita 18V 3.0Ah LXT battery in just 30 minutes and a 6.0Ah LXT battery in approximately 55 minutes.

2. Optimum Charging: The charger uses a built-in CPU to communicate with the battery’s built-in memory chip, optimizing the charging process by actively controlling current, voltage, and temperature.

3. Fan-Cooling System: To prevent overheating, the Optimum Charger features a built-in fan that cools the battery during charging, extending battery life.

4. Maintenance Mode: Post full charge, the charger keeps the battery cool and maintains it at full charge, enhancing battery health.

How Makita’s Optimum Charger Optimizes Battery Life and Reduces Charging Time

The Optimum Charger leverages advanced technology to extend the battery life and minimize charging time. The built-in CPU enables it to determine the optimum charging method based on the battery’s unique characteristics, which ensures that the battery doesn’t overheat or overcharge, ultimately extending the battery’s life. Its fast-charging capability also means that you get your power tool back to work faster, reducing downtime.

Insights on Why Using Non-Makita Chargers Might Harm Your Battery

While it might be tempting to use a non-Makita charger, it’s important to note that these may not have the technology to optimize the charging process like the Optimum Charger. Consequently, they may overcharge the battery, cause it to overheat, or not charge it fully, leading to decreased performance and a shorter battery lifespan. Therefore, it is always recommended to use Makita’s Optimum Charger for your Makita batteries to ensure optimum performance and longevity.

Understanding the importance of using Makita’s Optimum Charger will not only keep your battery in good health but will also enhance the efficiency of your power tool. Stay tuned for the next section where we will discuss the Do’s and Don’ts for charging Makita batteries.

Do’s and Don’ts for Charging Makita Batteries

Understanding and adhering to proper charging practices for Makita batteries can make a significant difference in battery longevity and the overall performance of your power tool. Let’s delve into the do’s and don’ts of charging Makita batteries, identify common mistakes, and explore the safety precautions necessary during the charging process.

Proper Charging Practices to Ensure Battery Longevity


  1. Use Makita’s Optimum Charger: This device ensures efficient charging and helps prolong the battery’s lifespan.
  2. Allow the Battery to Cool Before Charging: After using your power tool, let the battery cool down before placing it in the charger. Charging a hot battery can harm its lifespan.
  3. Charge Before the Battery is Fully Depleted: Regular charging, rather than waiting until the battery is fully depleted, can help prolong its lifespan.


  1. Avoid Overcharging: Even though Makita’s Optimum Charger features an auto-off function when the battery is full, it’s still best to remove the battery promptly after it’s charged.
  2. Don’t Use Non-Makita Chargers: These might not have the required technology to optimize charging, which can lead to battery damage.
  3. Avoid Charging in Extreme Temperatures: Charging in extremely cold or hot environments can affect the battery’s performance and lifespan.

Common Mistakes During Charging and How to Avoid Them

  1. Leaving the Battery on the Charger: While Makita’s Optimum Charger enters a maintenance mode post charging, it’s best not to leave the battery on the charger indefinitely to avoid potential issues.
  2. Using Damaged Chargers: Damaged chargers can cause harm to your battery. Always inspect your charger before use and replace it if necessary.
  3. Ignoring Warning Signs: If your battery isn’t holding a charge as it used to, it may be time for a replacement. Ignoring these signs can lead to inefficient tool operation.

Safety Precautions to Take While Charging Makita Batteries

  1. Proper Handling: Handle the battery and charger with care. Avoid dropping or subjecting them to shocks.
  2. Ventilation: Ensure that the charging area is well-ventilated. Batteries can produce gases during charging, which should be allowed to disperse.
  3. Avoid Contact with Conductive Materials: Prevent the battery’s terminals from contacting metal objects to avoid short-circuits.

Following these guidelines will ensure your Makita battery is charged safely, efficiently, and lasts for as long as possible. This understanding of the charging process, in turn, maximizes the performance and longevity of your power tools.

FAQs on Charging Makita Batteries

The process of charging Makita batteries might prompt a few questions. In this section, we address some of the common queries and misconceptions about charging times, battery maintenance, and more, to help you maximize the efficiency and longevity of your power tools.

1. Can I leave my Makita battery on the charger?

While Makita’s Optimum Charger switches to a maintenance mode after fully charging the battery, it’s not advisable to leave the battery on the charger indefinitely. Over time, this practice could potentially harm the battery’s performance and lifespan.

2. Can I use a non-Makita charger for my Makita battery?

Using a non-Makita charger is not recommended as these may not have the technology to optimize the charging process. This could lead to overcharging, overheating, or incomplete charging, decreasing the performance and lifespan of the battery.

3. Does charging my Makita battery before it’s fully depleted harm it?

No, it’s actually beneficial to charge your Makita battery before it’s fully depleted. Regular charging can help prolong its lifespan and maintain optimal performance.

4. How can I prolong the life of my Makita battery?

You can prolong the life of your Makita battery by following proper charging practices, using the appropriate charger, allowing the battery to cool before charging, and avoiding extreme temperatures during charging.

5. Does charging my Makita battery in cold conditions affect it?

Yes, charging your Makita battery in extremely cold conditions can negatively impact its performance and lifespan. It’s recommended to charge your battery in a cool, but not cold, environment.

6. Why does my Makita battery take longer to charge than specified?

If your Makita battery is taking longer to charge, it could be due to various factors such as battery age and health, the charger used, or environmental conditions. If the issue persists, it might be time to replace the battery or the charger.

Addressing these FAQs should provide a comprehensive understanding of how to effectively charge your Makita batteries. To ensure your power tools operate efficiently and last longer, remember these guidelines the next time you reach for that charger.


Effective power tool operation hinges on understanding the intricacies of battery charging, especially when dealing with renowned brands like Makita. Charging your Makita batteries correctly is crucial not only for the immediate task at hand but also for the battery’s lifespan and the long-term performance of your tools.

We’ve discussed various factors that impact the charging time of Makita batteries, including the battery type, capacity, age, and health, as well as the charger used. We dove into the specific charging times for different Makita battery models and highlighted the importance of using Makita’s Optimum Charger. Moreover, we addressed some do’s and don’ts for charging Makita batteries and tackled some FAQs to help clarify common misconceptions.

Remember, adhering to the right charging practices will not only extend your Makita battery’s lifespan but will also ensure your power tools are always ready to tackle any job. Take care of your batteries, and they will take care of your work.

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