The image shows a Makita BL4040 40V max XGT Lithium-Ion battery with a capacity of 4.0Ah. It is black with teal accents and features the "Makita" and "XGT" logos, along with indicators for voltage and amp-hour rating.
The image displays the Makita BL4040 40V max XGT Lithium-Ion 4.0Ah battery. It highlights features such as its 4.0Ah capacity, 45-minute charge time, weight of 2.2 lbs, integrated LED battery charge level indicator, and compatibility with the XGT system. The battery itself is black with teal accents and prominently features the Makita and XGT branding.
The image shows a Makita BL4040 40V max XGT Lithium-Ion battery with a capacity of 4.0Ah. It is black with teal accents and features the "Makita" and "XGT" logos, along with indicators for voltage and amp-hour rating.
The image displays the Makita BL4040 40V max XGT Lithium-Ion 4.0Ah battery. It highlights features such as its 4.0Ah capacity, 45-minute charge time, weight of 2.2 lbs, integrated LED battery charge level indicator, and compatibility with the XGT system. The battery itself is black with teal accents and prominently features the Makita and XGT branding.
Makita

Makita 40V max XGT 4.0Ah Lithium-Ion Battery BL4040 Fast-Charging Impact-Resistant Smart Digital Communication LED Indicator High-Load Power Delivery Extended Runtime Durable Jobsite Performance

In stock
SKU: BL4040
$239.00
Description

Power Smarter. Charge Faster. Work Longer.

Upgrade your cordless tool arsenal with the Makita 40V max XGT® 4.0Ah Battery BL4040—engineered for high-demand applications and built to thrive in rugged jobsite conditions. Whether you're driving fasteners, cutting materials, or powering heavy-duty tools, this battery delivers consistent performance and extended runtime with smart digital communication that adapts to your workload.

The impact-resistant outer case and shock-absorbing inner liner protect against drops and vibration, while the multi-layer contact interface ensures constant power delivery. With a full charge in just 45 minutes, you’ll spend less time waiting and more time working. Add a second battery to your kit for uninterrupted productivity or pair with Makita’s rapid charger for maximum efficiency.

What's Included

  • 1x Makita 40V max XGT® 4.0Ah Battery – Model BL4040

Specifications

System 40V max XGT®
Voltage 40V
Capacity 4.0Ah
Battery Type Lithium-Ion
Charge Time 45 minutes
Dimensions (L×W×H) 5-1/4" × 3-1/4" × 2-13/16"
Shipping Weight 2.25 lbs
UPC 088381-583664

Compatible with all Makita 40V max XGT® tools. For optimal performance, pair with the Makita Rapid Charger (sold separately). Backed by a 3-year limited warranty.