Chainsaw CNS 18-30 Battery

Simple to use, versatile and perfect for tree maintenance: the lightweight CNS 18-30 Battery chain saw with tool-less chain tensioning system.

Thanks to its low weight and ideal blade length, the CNS 18-30 Battery battery chain saw from Kärcher is perfect for convenient and versatile use in tree maintenance. An outstanding chain speed makes cutting tasks quick and effortless. The chain tensioning system, which requires no tools, and the automatic chain lubrication make the battery chain saw extremely easy to use. The combination of chain saw brake and two-factor unlocking is what makes it particularly safe. The device, blade, chain, blade guard and an oil bottle are included in the scope of supply.

Features and benefits
Chainsaw CNS 18-30 Battery: Tool-less chain tensioning
Tool-less chain tensioning
The chain is simply tensioned using a knob.
Chainsaw CNS 18-30 Battery: Automatic chain lubrication
Automatic chain lubrication
For low-maintenance use of the battery chain saw.
Chainsaw CNS 18-30 Battery: Kickback protection
Kickback protection
The chain stops immediately – for maximum safety in the event of a recoil effect.
Bumper spikes
  • Safe guiding and precise cuts because the chain saw attaches to the material that is to be cut.
Top-class speed
  • Chain speed of 10 m/s – for fast cutting work.
Varied applications
  • The 30-centimetre-long blade is versatile.
Safety unlocking
  • Prevents unintentional start-up of the chain saw.
Transparent oil tank
  • Users can check the oil level at any time at a transparent inspection window.
Brushless motor
  • For a longer running time and improved lifetime for the device.
18 V Kärcher Battery Power battery platform
  • Real Time Technology with LCD battery display: remaining running time, remaining charging time and battery capacity.
  • Long-lasting and powerful thanks to lithium-ion cells.
  • The exchangeable battery can be used in all other 18 V Kärcher Battery Power platform devices.

Technical data

Guide rail (cm) 30
Chain speed (m/s) 10
Chain pitch 3/8" LP
Chain gauge 1.1 mm / 0.043"
Number of drive links 45
Oil tank capacity (ml) 200
Guaranteed sound power level (dB(A)) 101
Vibration value of front handle (ΔK=1.5 m/s²) (m/s²) 3.5
Vibration values for rear handle (ΔK=1.5 m/s²) (m/s²) 5.2
Motor type Brushless motor
Battery platform 18 V battery platform
Voltage (V) 18
Performance per battery charge * (cuts) max. 35 (2,5 Ah) / max. 70 (5,0 Ah)
Runtime per battery charging (min) max. 10 (2,5 Ah) / max. 20 (5,0 Ah)
Weight without accessories (kg) 3.2
Weight incl. packaging (kg) 5
Dimensions (L × W × H) (mm) 690 x 230 x 245
-- * Ø branches: 10 cm


  • Guide rail
  • Saw chain
  • Oil bottle
  • chain protection
  • Tool-less chain tensioning
  • Automatic chain lubrication
  • Chain brake
  • Oil level indicator
Chainsaw CNS 18-30 Battery
Chainsaw CNS 18-30 Battery
Application areas
  • Chopping up thinner branches
  • Debranching trees
  • Cutting firewood
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