Works Great for the price ,, one Battery last about 1 1hr 1/2hour of Trimming and i mean Trimming ,, i have over 200 trees ,,and shrubs ,, Love it lite weight ,, should be on ever Tractor ,, or Graden Tractor ,, you can buy chains on EBAY FOR 4 T0 8 DOLLARS PC ,, Sharpen them couple times then just replace them if not good at sharping them .. i bought 2 of them for barn truck tractors,, ps buy same the same brand that can interchange them,, also bought 2 of 6 speed blowers ,, same battery's so have 8 battery's ,, all over 250 dollars ,,