This wire cutter meets my need for borders and unreachable areas of land of 3000 m2, the edges are planted with shrubs with several elevation changes. A self-supporting allows me to quickly make the overall mowing and light GLC, manageable and adaptable finishing in 3 battery recharges. Autonomy is of 20 minutes, charging 45 minutes, which is fine. The wire wears little and I have not needed to make a refill. I will see if it is convenient or not, but with a doubt. See my review of the A6171 recharge.