
The Bosch AdvancedGrassCut 36 is a cordless grass trimmer operating on the 36 V Power for All battery platform. Its rotating cutting head with line allows for finishing touches in the garden after mowing, in areas where the mower cannot reach: along walls, around trees, and at the edges of flower beds.
Line Cutting System and Rotating Head Adjustment
The Bosch AdvancedGrassCut 36 uses a nylon cutting line that spins at high speed to cut through grass. The line gradually wears down when in contact with the ground and hard edges. An automatic feed mechanism allows for new line to be released without disassembling the spool.
Before each use, check that the line extends sufficiently from the cutting head. A line that is too short reduces the working width and strains the motor. A line that is too long may snap at startup. The correct indicator: the visible length of the line corresponds to the cutting width indicated by the protective guard.
The head can pivot to switch from the classic trimmer mode (line parallel to the ground) to the edging mode (line perpendicular, for trimming grass that overhangs a path). This switch is done by turning the device at a precise angle, detailed in the Bosch AdvancedGrassCut 36 manual with the corresponding diagrams.

36 V Power for All Battery: Runtime and Garden Compatibility
The AdvancedGrassCut 36 is part of the 36 V Power for All ecosystem from Bosch. The same battery powers a range of garden tools from the brand: hedge trimmers, blowers, chainsaws. For a user who already owns a Bosch 36 V tool, purchasing the solo version (without battery or charger) represents significant savings.
For medium to large gardens, a battery of at least 4.0 Ah is recommended. With a lower capacity, the runtime may be insufficient if the terrain has many edges or areas to finish manually after mowing.
The 36 V remains a garden-oriented ecosystem at Bosch. The manufacturer’s latest developments in professional tools focus on the 18 V ProCORE Biturbo platform. Choosing the 36 V prioritizes power for outdoor cutting tasks, with a coherent battery range for the garden.
Extending Battery Life
- Remove the battery from the device after each work session, even if short. Leaving a lithium-ion battery in a tool exposed to sunlight or moisture accelerates its degradation.
- Store the battery in a dry place at room temperature, ideally between one-quarter and three-quarters charged. A battery stored completely discharged for several months may no longer accept a charge.
- Avoid systematic recharges after just a few minutes of use. Modern batteries do not have a memory effect, but very frequent partial cycles unnecessarily stress the cells.
Cutting Technique: Clean Edges Without Damaging the Garden
The basic gesture consists of sweeping the cutting head from left to right in an arc, at a constant height. Keep the line a few centimeters off the ground, without pressing it against the soil. Prolonged contact with the ground can throw stones and wear the line two to three times faster.
Along flower beds or at the base of young trees, reduce the sweeping speed. A quick pass can uproot grass instead of cutting it, which promotes yellowing. Approach the tool at a reduced angle to limit debris projection towards the plants.
Edging: Cutting a Clean Line Along a Path
The edging function transforms the tool into a vertical cutter. The line attacks the edge of grass that encroaches on the gravel or paving. Move slowly, keeping the device upright. The cutting line should follow the edge of the path without encroaching on the healthy lawn.
This technique yields results comparable to that of a dedicated tool like a blade trimmer, with the advantage of not needing to switch devices between tasks. One tool replaces both the string trimmer and the mechanical edger.

Regular Maintenance and Line Replacement
The cutting line is the only consumable part of the device. When the spool is empty, replace it with a compatible Bosch spool. Using a line with a different diameter than that recommended by the manufacturer alters the load on the motor and may cause overheating.
- Clean the protective guard after each use. Cut grass accumulates around the head and, when dried, forms a crust that hinders the line’s rotation.
- Regularly check the condition of the guard. A crack or chip reduces protection against flying stones and debris.
- Inspect the handle and telescopic tube. Any play at the joints can fatigue the arms and reduce cutting precision. Tighten the locking knobs if necessary.
The height-adjustable telescopic tube allows the tool to be adapted to the user’s height. A setting that is too low forces bending, which can cause lower back pain after half an hour of work. Adjust the height so that the arms remain slightly bent, with elbows close to the body.
For safety, wear protective glasses and closed shoes. The nylon line projects fragments of stone and wood at high speed, within a radius of several meters around the cutting area. Sandals and bare legs are to be avoided.
The Bosch AdvancedGrassCut 36 remains a finishing tool, not a substitute for a mower. Its role begins where the mower’s wheels can no longer go. Well-adjusted and properly maintained, it provides clean lawn edges throughout the season without requiring anything more than a line spool replacement.