Your new battery cartridge 
Press the start button (red). The charging light will come on and charging will begin. If the charging light does not come on, press the reset button (yellow) first, then the start button (red). If the charging light goes out within 10 seconds even after pressing the reset button and 
When the charging light goes out after about one hour, you may remove the fully charged fast charger.
After charging, unplug the charger from the power source. Refer to the table below for the charging time.
5092DW, 5092D specifications
The Makita 5092D and 5092DWV are two powerful cordless angle grinders designed for professional applications. These models reflect Makita's commitment to delivering high-quality tools that enhance productivity and efficiency in various industrial and construction settings.The Makita 5092D features a robust 18V lithium-ion battery, providing extended runtime and consistent power. This model is equipped with a powerful motor that delivers 10,000 RPM, making it suitable for heavy-duty grinding tasks. The compact design and lightweight nature allow users to work comfortably for extended periods without fatigue. The ergonomic handle offers improved grip and control, enabling precision in tight spaces or overhead work.
One of the standout features of the 5092D is its electronic brake system, which allows for quick stops of the grinder's disc, improving safety and reducing the risk of accidental injuries. The adjustable side handle can be positioned on either side of the tool, providing flexibility for left- or right-handed users. Moreover, the built-in dust protection mechanism helps to keep the internal components clean, promoting longevity and reliability.
On the other hand, the Makita 5092DWV elevates the user experience with integrated dust extraction capabilities. This model comes with a dust collection system that effectively captures debris, ensuring a cleaner work environment. The advanced filtration system not only protects the tool during operation but also minimizes airborne particles, safeguarding the health of the user.
Both models showcase Makita's innovation in brushless motor technology, offering improved efficiency and longer tool life. This technology optimizes battery usage, allowing the user to complete more tasks on a single charge. These grinders also include an adjustable guard, featuring easy-to-use mechanisms for quick changes to adjust the angle for different applications.
The durability of these tools is evident, with a strong housing structure designed to withstand the rigors of professional use. Additionally, the Makita 5092D and 5092DWV models come equipped with an overload protection feature that prevents damage to the motor during prolonged use.
Overall, the Makita 5092D and 5092DWV angle grinders exemplify performance, safety, and user-friendly design, making them excellent choices for professionals seeking reliable and high-quality grinding solutions. Whether tackling metal fabrication, masonry work, or refurbishment projects, both tools deliver exceptional results and durability under demanding conditions.