The stihl hta 85 is a professional cordless pole pruner which lightweight and extendable design ensures arborists and tree owners can work for longer periods without the need for ladders.the 1 4 pm3 saw chain bites well and has a first rate cutting performance. The hta 85 has a maximum working height of 5 metres and has a quick release button which adjusts the height without needing to slow down. Swiftly and precisely maintaining orchards and copses, this versatile pole saw is comfortable to use due to its low vibration and ergonomically designed soft grip handle.powered by leading edge lithium ion batteries, the stihl cordless range of tools for the garden are extremely popular with homeowners and contractors due to their cable free design. They offer an environmentally friendly alternative to petrol as they produce zero emissions and have minimal running costs. There is a range of battery and charger options available which are all sold separately. the hta 85 featuresa side chain tensioner side mounted chain tensioners prevent any contact with the chain when being adjusted.ec motor stihl’s brushless ec motor works efficiently under pressure and has an increased life expectancy compared to brushed versions.telescopic shaft with quick release the lightweight, yet durable telescopic shaft extends from 2.7m to 3.9m, which easily cuts branches 5 metres from ground level. Tool less oil cap a patented quick and easy cap design for the oil tank ensures the tank can be opened and closed quickly and without any effort or tools.soft handle grip the gripy soft handle is comfortable to use and gives you the confidence to work in damp conditions. Battery and charger not included.running timeap 100 battery  15 minsap 200 battery  35 minsap 300 battery  55 minsar 1000 battery 125 minsar 2000 battery 180 minsar 3000 battery 230 minscharging time with a al 300 quick chargerap 100 battery  50 minsap 200 battery  55 minsap 300 battery  75 minsar 1000 battery 180 minsar 2000 battery 250 minsar 3000 battery 300 minsspecificationpower 36v lithium ion batterymotor type ec brushlessguide bar length 30cm 12 bar type rollomatic e minichain pitch 1 4 pchain gauge .043 chain type pm3 picco microchain oiler automaticstroke rate 3,000tooth spacing 33mmnoise levels 93 dbavibration levels 2.5 2.5 m s² left righttotal length 270 390cmweight net 4.9kgwarranty 2 year domestic, 1 year commercial