Makita BL4040F vs BL4040: XGT Tablet Cell Battery Comparison

Introduction

Makita’s XGT battery line already spans a wide range, from 2.5Ah up to 8Ah packs. The newest addition to that lineup is the BL4040F, a battery that tries to break the usual trade-off between power and weight. It packs a new tablet cell design that delivers up to 35% more power than the standard 4Ah battery, effectively giving it the output of a 5Ah pack while keeping the compact, lighter form factor of a 4Ah battery.

That is a meaningful claim for anyone who spends long days on the tools. In this comparison we look at how the BL4040F stacks up against the standard BL4040, and where each pack makes the most sense.

Makita BL4040F: Tablet Cell Technology

The headline feature of the BL4040F is its new tablet cell technology. It delivers up to 35% more power than Makita’s standard 4Ah battery, putting it in the power territory of a 5Ah pack. The benefit is that none of that extra output comes at the cost of size or weight: the battery stays within the same form factor as the standard 4Ah pack, so tools remain lighter and better balanced.

There is a second practical advantage. Under high-drain applications, the BL4040F is claimed to run up to 32% cooler than the standard 4Ah battery. Cooler running is good news for both battery longevity and sustained performance on demanding tools, since heat is one of the main things that pushes battery packs into thermal protection.

Performance Under Load

For demanding high-drain tools, the difference shows up in how smoothly the tool holds power. Makita demonstrated the BL4040F on a 10-1/4” DSR2 saw, where it delivered a notably more fluid and consistent cutting experience compared with the standard pack.

When the same tool was run with the standard BL4040, it still completed the cut cleanly, but the energy delivery was noticeably less consistent. For occasional light use that difference may not matter much. For repetitive cuts, fasteners, or other heavy applications, the steadier output of the BL4040F is where its tablet cell design earns its keep.

Standard BL4040: The Reliable Baseline

The standard BL4040 remains a proven 4Ah option in the XGT range. It offers the same compact form factor and straightforward compatibility across Makita’s XGT tools, and it was already a well-rounded choice before the new pack arrived.

If your workload rarely stresses the battery hard, the standard 4Ah pack is still a sensible, cost-conscious option. The BL4040F is aimed squarely at users who need more punch from tools they already own, without moving up to a physically larger and heavier 5Ah battery.

Real-World Cutting Demonstration

Side-by-side cutting runs with the same saw made the contrast easy to see. With the BL4040F installed, the tool maintained a fluid, even pace through the material. The standard BL4040 got the job done, but with less consistent energy under load.

That kind of real-world difference is the practical argument for the newer pack: same size, same weight class, smoother and stronger output where it counts.

Availability and Buying Advice

The BL4040F was introduced with immediate launch and is expected to reach the market over the next few months. If you are buying batteries for a new XGT setup, it is worth checking whether the BL4040F is already available in your region, since its power and thermal benefits come without a form factor penalty.

Choose the BL4040F if you run high-drain tools regularly and want 5Ah-class output in a lighter 4Ah package. Stick with the standard BL4040 if your work is lighter duty or your existing packs are still serving you well.

Conclusion

The BL4040F is a smart evolution of Makita’s XGT battery range: more power, cooler running under heavy load, and no added bulk. For demanding users, it is the more capable pack. For lighter workloads, the standard BL4040 remains a dependable, proven choice.