The al ko energy flex gt4030 cordless line trimmer has a 30cm working path and uses a bump feed head to release the trimming line. New line is released by ‘bumping’ the trimmer head on the ground, no need to stop the machine to re load.the al ko energy flex range of battery operated gardening machines are all powered by a single 40v lithium ion battery. These 4ah li ion batteries are fully rechargeable and offer all the power of a petrol model but minus the pollution.battery operated garden machinery allows a user the freedom to work around a garden without trailing electrical cables causing a problem.as there’s no mains cable attached to the al ko gt 4030 you can go right to the end of gardens and paths and around corners borders without using an extension cable or stop to re fuel a petrol tank. Fully charged the 4ah battery can last 60 minutes.the energyflex gt 4030 comes complete with a fully loaded head of nylon trimming line. The trimmer head pivots so you can also edge along paths and borders for a clean finish. With the battery fitted the grass trimmer weighs only 3.9kg so can be used by most gardeners.the alko gt4030 cordless grass strimmer doesn’t include a battery or charger. These need to be purchased separately.specificationsmodel gt 4030type line trimmercutting path 30cmline feed automatic bump feedcutting line nylonspace for replacement spool yesauxiliary handle yes, adjustablepivoting cutting head yesbattery charge time 90 minutesoperating time 60 minutesapprox weight with without battery 3.9 2.4kgbattery and charger not includedmanufacturer’s warranty 2 year domestic