Brushless 24V performance at 2 kg: what actually changes
Weight alone does not explain the upgrade. The 177 km/h 24V blower is also listed at 2 kg and uses a brushless motor, so moving to the BL24515 is not simply a switch from a heavy or basic motor design to a lighter one. The more noticeable change is what the same compact weight class can do.
The 177 km/h 24V kit with a 4Ah battery is built for straightforward small-to-medium garden clearing, with variable speed and a simple compact format. Its 177 km/h tool-only counterpart follows the same idea for owners who already have a compatible 24V battery.
The BL24515 keeps the 2 kg listed weight but raises maximum air speed to 209 km/h and publishes 14.58 m³/min of air volume. That makes the step-up more relevant when dry leaves are spread over a wider lawn edge, grass clippings cover a longer path or a denser patch needs more airflow than a routine tidy-up.
Variable speed, cruise and Turbo cover different parts of the same garden
The three control options are useful because a garden rarely has one surface condition from start to finish. Variable speed is the precise setting. Around pots, borders, gravel and lightweight mulch, start lower so you move the leaves without scattering everything around them.
Cruise control suits longer open passes. Once you reach a driveway, broad path or open lawn edge, a steady airflow can reduce the need to hold the trigger in one position continuously. Turbo is the short-term option for material that resists normal airflow, such as a damp patch or a compact corner.
Using those controls in sequence lets one blower move from delicate areas to open ground without treating maximum output as the default. Quiet Force also gives the BL24515 a distinct operating feature, with Greenworks describing it as reducing noise without compromising blowing performance.
For comparison, the 40V 177 km/h tool-only blower is rated at 11.05 m³/min and uses a brushed motor. It also has variable speed and cruise control, but belongs to a separate 40V battery family. The useful lesson is that voltage alone does not define the job range; airflow, controls and the batteries you already own all matter.
Upgrade the blower without restarting the battery collection
The strongest buying case for the BL24515 is therefore an existing 24V setup. Greenworks states that it is compatible with all Greenworks 24V batteries, so an owner who already uses the platform can add the blower without buying another battery kit.
That keeps the decision focused. If your current 24V blower already handles short patio and path jobs comfortably, there may be little reason to replace it. If you increasingly need broader airflow, cruise control for longer passes or Turbo for stubborn sections, the BL24515 provides those changes while staying inside the same battery family.
Moving to 40V is a different decision. The 40V 177 km/h kit with a 2Ah battery starts a separate platform and includes its own battery route. That can make sense if other 40V tools are part of your future garden setup, but it is not automatically a better upgrade for someone already invested in 24V.
For an existing Greenworks 24V owner, the BL24515 is best viewed as a performance step rather than a platform change: keep the battery family, gain 209 km/h and 14.58 m³/min, add cruise and Turbo, and stay within a 2 kg handheld format. That is a clearer reason to choose the tool-only model than simply ranking it above every lower-speed blower.