I'm not a pro but I've been felling and cutting firewood for 35+ yrs. I've this saw for 3 or 4 years and I've used it about 20 times around my house. Today I cut up some slightly green willow oak and some older white oak branches and I can't believe the battery lasted for 3 filled wheelbarrows.
then I cut this log and and it still had 1 bar !
then I cut this log and and it still had 1 bar !