Thought I’d do a quick follow up on what an amp can do with a battery powered chainsaw. Quick rundown – Thursday of last week Nashville had insane straight line winds that uprooted trees, took out a lot of streets, power lines, etc. Saturday we had 7-9″ of rain over a couple of hours causing five deaths so far, and probably billions in damages (it was maybe our second hundred year flood event in 11 years.)
Pocketables will return to non chainsaw related coverages soon.
Anyhow, friend had an 80 foot tall cedar (I’m thinking from the smell,) come down in the back yard, and a slightly taller one come down to re-shape a fence, hit the neighbor’s house, etc. One of them was a hazard to anyone near it as it was in the air waiting to jump down and crush you.
With my trusty Ryobi (Home Depot,) 40V battery powered 17″ chainsaw, 3 batteries on day one (5,4,1 amp) and 4 batteries on day 2 (5,4,3,1 amp) and some help moving limbs and making sure nobody was crushed with 2000 pounds of wood would randomly decide to start moving, this was accomplished.
I figure a total of 23 amp hours over two days and 2.5 hours, this was pretty much nonstop cutting day 1 (about an hour and 10 minutes for 10AH,) and a lot of stop and go today over 2.5 hours as one of the trees was 6 feet off the ground and had to be arranged down, and at one point my chainsaw became one with the tree and I had to extract using a hammer and chisel to pry the limb apart.)
Conclusions from this – power is not an issue, but keeping it powered is. Batteries take a lot of time to charge even if you have 4 chargers with you, and tend to not charge when they’re hot, which happens a lot with when you’re trying to cut through 24 inches of cedar.
As a note, yeah it’s not done but everything’s in manageable chopped up pieces that they can handle the rest of and I’ve got flood damage to deal with and a councilperson to pester.