Milwaukee REDLITHIUM HIGH OUTPUT HD 12.0Ah Battery Pack

The Milwaukee REDLITHIUM HIGH OUTPUT HD 12.0Ah Battery Pack is a powerhouse designed to meet the demands of modern job sites. As someone who has spent countless hours using various tools and battery packs, I can confidently say this battery pack is a game-changer.

A Beast of a Battery

At first glance, the 12.0Ah battery is noticeably larger and heavier than its predecessors. Weighing in at over 3 pounds, it's not something you would want to pair with a lightweight drill or driver unless you have exceptionally strong wrists. However, this heft is justified by the sheer power and longevity it provides. For tools that demand high energy consumption, like circular saws, impact wrenches, and angle grinders, this battery is a perfect match.

Performance and Longevity

One of the standout features of this battery is its runtime. During my tests, I used it with a 7 1/4" circular saw to cut through multiple sheets of 3/4" plywood. Remarkably, the battery lasted all day on a single charge. This kind of performance is unheard of with smaller batteries and makes a significant difference on job sites where access to power outlets is limited or non-existent.

Another impressive aspect is how cool the battery runs. Even under heavy loads, the 12.0Ah battery maintains a lower temperature compared to older models. This not only extends the battery's lifespan but also ensures consistent performance throughout its charge cycle.

Versatility and Compatibility

The 12.0Ah battery is compatible with over 150 M18 cordless solutions, making it a versatile addition to any Milwaukee tool collection. However, it's essential to note that its larger size can be a drawback for some older tools. I encountered issues fitting the battery into certain M18 tools manufactured before June 2018. Milwaukee does offer free service upgrades for these tools, but it's something to be aware of if you have an older tool collection.

On the flip side, the battery fits perfectly into tools where it forms the base, such as drills and drivers. For stationary tools like miter saws, table saws, and lighting products, the extra weight is negligible and the extended runtime is invaluable.

Charging Efficiency

The included rapid charger is another highlight. It charges the 12.0Ah battery in about 90 minutes, significantly faster than the standard chargers. This rapid charging capability is crucial for minimizing downtime on the job. The charger also features indicators that show the charging status, which is a helpful addition.

Practical Use Cases

I found the 12.0Ah battery particularly useful for high-demand tools. For instance, using it with a 1/2 inch impact wrench or a 4 1/2 inch grinder transformed these tools into production powerhouses. The battery's capacity allows for extended use without the need for frequent recharges. I even used it with a Milwaukee string trimmer and was able to trim a 150-yard hedge on a single charge, which was a pleasant surprise.

User Experience

The onboard fuel gauge is a practical feature that provides a quick view of the remaining runtime. This is especially useful for planning work sessions and ensuring you don't run out of power unexpectedly. The battery's durable construction also stands up well to the rigors of job site conditions, ensuring it can handle the bumps and drops that come with daily use.

Drawbacks

Despite its many advantages, the 12.0Ah battery isn't without its flaws. Its size and weight can make it cumbersome for handheld tools, and fitting issues with older tools can be frustrating. Additionally, while the rapid charger is efficient, it does get quite warm during operation, which might be a concern for long-term durability.

Final Thoughts

The Milwaukee REDLITHIUM HIGH OUTPUT HD 12.0Ah Battery Pack is a robust and reliable power source for demanding tools and applications. Its extended runtime, efficient cooling, and rapid charging make it a valuable addition to any professional's toolkit. However, its size and weight may not be suitable for all users, especially those who primarily use lighter, handheld tools.

Would I recommend this battery pack? Absolutely, but with a caveat. If your work involves heavy-duty tools and you need a battery that can keep up with long, demanding tasks, this is an excellent choice. However, if you primarily use smaller tools or have an older collection of M18 tools, you might want to consider the fit and weight before making the investment.

Overall, the 12.0Ah battery lives up to its reputation as a powerhouse, delivering the performance and reliability that professionals need on the job.