Bosch AHS 55-20 LI Cordless Hedge Trimmer

Bosch AHS 55-20 LI Cordless Hedge Trimmer

By Bosch · Model: AHS 55-20 LI · Landscaping & Outdoors

Cordless hedge trimmer with 550mm blade length, 20mm cutting capacity, and 18V battery for domestic hedging.

  • 550mm blade length
  • 20mm cutting diameter
  • 18V lithium-ion battery
  • Lightweight at 2.6kg
  • Anti-blocking system
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Overview

The Bosch AHS 55-20 LI is a reliable cordless hedge trimmer for domestic gardens.

In-Depth Look

The Bosch AHS 55-20 LI is a reliable cordless hedge trimmer from the Bosch garden division, designed for regular domestic hedge maintenance. It sits in the mid-range of the Bosch 18V cordless garden range, positioned for homeowners and gardeners rather than landscape contractors running multiple machines daily.

550mm Blade and 20mm Cutting Capacity

The 550mm blade suits medium-sized domestic hedges — longer than the 430mm blades found on entry-level trimmers, and adequate for most typical UK garden hedges. The 20mm maximum cutting diameter handles twiggy growth on established and regularly maintained hedges but will struggle on thick woody stems. Hedges that have been left uncut for several years may require initial tidying with a petrol trimmer or pruning saw before the AHS 55-20 can maintain them effectively.

Anti-Blocking System

The anti-blocking system detects when the blade stalls on a thicker stem and temporarily reverses the blade direction to free the obstruction without manual intervention. This extends continuous cutting time on uneven hedges that include occasional thicker growth, reducing the stop-start interruptions that are common without this feature.

Battery and Runtime

The 18V battery provides a single charge of typical runtime for an average domestic hedge trimming session. For larger gardens or multiple hedges in one session, a second battery is advisable. The battery is shared with other Bosch 18V garden tools including the Rotak cordless lawnmower range, making a second battery useful across the full range. Note that the AHS 55-20 LI takes the Bosch green (garden) range batteries, not the blue Bosch Professional 18V batteries — the two ranges are not cross-compatible.

Verdict

A sensible, well-made cordless hedge trimmer for typical UK domestic gardens. The lightweight design, anti-blocking system, and adequate blade length cover most residential hedging requirements without the noise or hassle of a petrol machine.

Specifications
Battery18V lithium-ion
Blade Length550mm
Cutting Capacity20mm
Weight2.6kg

Who It's For

  • Gardeners and landscapers
  • Homeowners maintaining hedges

Pros & Cons

Pros

  • Lightweight and well-balanced
  • Cordless freedom
  • Anti-blocking system for continuous cutting

Cons

  • 20mm cutting capacity limits use on mature hedges
  • Battery life limits extended sessions
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