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8 Best Milwaukee Battery 2025 in the United States

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Our Top Picks

#1

Winner

MilwaukeeTool 48-11-1862 M18 Lithium-Ion High Output 6.0Ah Battery Pack (2-Pack)

The MilwaukeeTool 48-11-1862 M18 Lithium-Ion High Output 6.0Ah Battery Pack is designed for power tool users seeking reliable and efficient battery performance. With a voltage that supports various Milwaukee tools, this battery pack offers a solid 6.0Ah capacity, ensuring longer runtimes for demanding tasks. The lithium-ion technology provides a consistent power level throughout the discharge cycle, which is great for both light and heavy-duty applications. Durability is another strong point, as Milwaukee is known for producing robust products, and this battery is no exception, often withstanding tough job site conditions.

The two-pack option also offers good value, as it allows users to keep one battery charged while the other is in use, minimizing downtime. The charge time is reasonable for lithium-ion batteries, making it convenient for users who need to get back to work quickly.

On the flip side, while the batteries are highly compatible with most Milwaukee tools, they may not fit well with products from other brands, limiting versatility for users with mixed-tool setups. Additionally, the weight of the battery, at 2.3 pounds, could be cumbersome for some users during extended use, especially in handheld tools. The price point is generally higher than some budget alternatives, which might be a consideration for casual users or DIYers who don’t need the same level of power and durability.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Compatibility
Charged and ready, no complaints with previous Milwaukee tool batteries!
Durability and Warranty
Genuine Milwaukee batteries, well worth the price and they last a long time charged.
#2

Milwaukee 48-59-1850 M18 RED LITHIUM XC 5.0 Ah Batteries (2) + 48-59-1812 M12 and M18 Multi Voltage Charger kit

The Milwaukee 48-59-1850 M18 RED LITHIUM XC 5.0 Ah Batteries paired with the 48-59-1812 M12 and M18 Multi Voltage Charger is a solid choice for those needing reliable power on the job. These 18-volt lithium-ion batteries offer a high capacity of 5.0 amp-hours, meaning they can run for a long time between charges, which is great for heavy-duty use. One standout feature is the REDLINK Intelligence, which ensures optimal performance and protects against overloads by communicating between the tool, battery, and charger.

Additionally, the onboard fuel gauge helps you monitor the remaining runtime, minimizing unexpected downtimes. These batteries perform well in various weather conditions, providing steady power even in extreme environments. They are compatible with all tools in the M18 line, adding versatility to your toolkit. The charger supports both M12 and M18 batteries, making it a convenient addition if you use multiple Milwaukee tools.

On the downside, the kit doesn’t include additional batteries, which might be a drawback for those needing more spares. The batteries and charger are a bit on the heavier side at nearly 5 pounds, which could be tiring during extended use. Despite these minor drawbacks, the batteries are known for their durability and come with a solid warranty. This kit is particularly beneficial for professionals in construction or heavy-duty DIY enthusiasts looking for reliable, long-lasting battery performance.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Charge Time
Genuine batteries that charge quickly.
Durability and Warranty
Batteries offer tons of power and are very durable.
#3

Milwaukee 48-11-2450 12V Lithium-Ion High Output 5Ah Battery Pack (G0803029)

The Milwaukee 48-11-2450 12V Lithium-Ion High Output 5Ah Battery Pack is designed for power tools, providing a robust 12V output and a substantial 5Ah capacity. This means it can deliver consistent power over extended periods, which is crucial for demanding tasks. The battery is compatible with over 125 Milwaukee cordless power tools, making it highly versatile for users already invested in the Milwaukee ecosystem.

Its resistant housing offers protection against oils, greases, and solvents, enhancing durability in harsh conditions, which is great for professional use. Additionally, it operates well in all weather, ensuring reliable performance in various environments. At 1.04 pounds, it is relatively lightweight, making it easier to handle and transport.

In summary, this battery pack is well-suited for users who need a dependable, versatile power source for their Milwaukee tools.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Compatibility
Received in original packaging, the battery's performance in an M12 Impact is impressive, showcasing its strength and authenticity.

Buying Guide for the Best Milwaukee Battery

When choosing a Milwaukee battery, it's important to consider several key specifications to ensure you get the best performance and longevity for your tools. Milwaukee batteries are known for their durability and efficiency, but selecting the right one for your needs can make a significant difference in your work. Here are the key specs to consider and how to navigate them.
VoltageVoltage indicates the power output of the battery. Higher voltage batteries provide more power, which is essential for heavy-duty tools and tasks. Milwaukee batteries typically come in 12V, 18V, and 28V options. For light-duty tasks and smaller tools, a 12V battery is sufficient. For most general-purpose tools and tasks, an 18V battery is ideal. For the most demanding tools and applications, a 28V battery will provide the necessary power. Choose the voltage based on the power requirements of your tools and the intensity of your tasks.
Amp-Hours (Ah)Amp-Hours (Ah) measure the battery's capacity, or how long it can run before needing a recharge. Higher Ah ratings mean longer run times. Milwaukee batteries range from 1.5Ah to 12Ah. For occasional use or light tasks, a lower Ah battery (1.5Ah to 3Ah) is sufficient. For regular use and moderate tasks, a mid-range Ah battery (4Ah to 6Ah) is a good choice. For heavy use and demanding tasks, a high Ah battery (9Ah to 12Ah) will provide the longest run time. Consider how long you need your tools to run between charges to determine the right Ah rating for you.
Battery TypeMilwaukee primarily offers Lithium-Ion (Li-Ion) batteries, which are known for their long life, lightweight, and consistent power output. Li-Ion batteries are preferable over older technologies like NiCad because they have a higher energy density, meaning they can store more energy in a smaller package. They also have no memory effect, so they can be charged at any time without reducing their capacity. If you need a reliable, long-lasting battery, choose a Li-Ion battery.
CompatibilityCompatibility refers to whether the battery will work with your existing Milwaukee tools. Milwaukee has different battery platforms, such as M12 and M18, which correspond to 12V and 18V tools, respectively. Ensure that the battery you choose matches the platform of your tools. Using the correct platform ensures optimal performance and safety. Check your tool's specifications or user manual to confirm compatibility before purchasing a battery.
Charge TimeCharge time is the duration it takes to fully recharge the battery. Faster charge times mean less downtime between uses. Milwaukee offers standard and rapid chargers, with rapid chargers significantly reducing charge times. If you need your tools to be ready quickly, consider investing in a rapid charger. For occasional use, a standard charger may be sufficient. Evaluate how often you use your tools and how quickly you need them to be ready again to decide on the appropriate charge time.
Durability and WarrantyDurability refers to the battery's ability to withstand tough conditions and frequent use. Milwaukee batteries are designed to be durable, but some models offer enhanced features like shock-absorbing housings and water resistance. Additionally, consider the warranty offered by Milwaukee, as it can provide peace of mind and protection for your investment. If you work in harsh environments or use your tools frequently, look for batteries with enhanced durability features and a robust warranty.

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