Battery powered chainsaw recommendations? (2017)

[k0ua]

I remember the first time I was doing electrical work in Austria... the wires looked like speaker wire with circuit breakers sized 8 amp and 12 amp due to the standard voltage being 230V in residential.

It sure was a lot easier to work the smaller diameter wire and fishing it through conduit embedded in the concrete and cinder block walls.

My first experience adding a circuit involved chipping a path under the stucco... all conduit is plastic and pulls were easy.

It makes you wonder why we went with the "1/2 voltage" and "twice the current" method doesn't it. When much of the rest of the world seems to get along fine with a 230 volt system. I think some of it is peoples perception that 115 volts is safer in every day appliances than a 230 volt system.

On the DC automotive side of things, as engines got larger and harder to spin in the 50's, we went away from the 6 volt systems due to the very high currents needed and the very thick wires needed, and went to 12 volt system. But why didn't we go the next step like the military did and go to the 24 (nominal battery voltage) 28 volt charging voltage system? The currents needed to spin the starter is 1/2 of a 12 volt system. All the wiring can be smaller including the winding's in the motors. All of the Telephony central office power plant is a 48 volt system for the same reasons. I don't know for sure why things shake out the way they do. :confused3:

 

[4570Man]

It makes you wonder why we went with the "1/2 voltage" and "twice the current" method doesn't it. When much of the rest of the world seems to get along fine with a 230 volt system. I think some of it is peoples perception that 115 volts is safer in every day appliances than a 230 volt system.

On the DC automotive side of things, as engines got larger and harder to spin in the 50's, we went away from the 6 volt systems due to the very high currents needed and the very thick wires needed, and went to 12 volt system. But why didn't we go the next step like the military did and go to the 24 (nominal battery voltage) 28 volt charging voltage system? The currents needed to spin the starter is 1/2 of a 12 volt system. All the wiring can be smaller including the winding's in the motors. All of the Telephony central office power plant is a 48 volt system for the same reasons. I don't know for sure why things shake out the way they do. :confused3:

I guess for the same reason we went with the idiotic measurement system.

 

[fried1765]

I guess for the same reason we went with the idiotic measurement system.

Yup!
We still use the length of the kings foot as our standard of measurement.
Amazingly stupid!

 

[k0ua]

I guess for the same reason we went with the idiotic measurement system.

Well, there you go..We just don't always make the right choices.

 

[Oldpath05]

"(One thing you need to have under your belt is an understanding of ohms law E=IR.)"<<<Are you kidding, if I loosen my belt all the way it's still over my head and landed out in the gulf of Me, glad you was talking to someone else.

"(The above example of a an 80 volt 2 amp hour battery and a 40 volt 4 amp hour battery will both provide the 160 watt hours of energy .....Theoretically..)"
<<<See that's where GreenWorks lost me, both battery chainsaws, 40v&80v produce 160W, but I take their word for it cause they know more than I do.

The only part I understood from GreenWorks was this>> "(So a lower Voltage battery will usually produce less power. A high Ah battery will usually result in an increased run time.")

 

[Oldpath05]

I still like the Kings foot measurement, cant understand metric to save my soul, when I go to Subway and order a footlong, I know what I'm getting....same with chainsaws etc, 22 mm bar, what's that, I don know, 18" bar yup got that, some more sawdust to pile up.

 

[bcp]

I still like the Kings foot measurement, cant understand metric to save my soul, when I go to Subway and order a footlong, I know what I'm getting....same with chainsaws etc, 22 mm bar, what's that, I don know, 18" bar yup got that, some more sawdust to pile up.

I wouldn't have much use for a saw with a 22mm bar, either.

Bruce

 

[4570Man]

I still like the Kings foot measurement, cant understand metric to save my soul, when I go to Subway and order a footlong, I know what I'm getting....same with chainsaws etc, 22 mm bar, what's that, I don know, 18" bar yup got that, some more sawdust to pile up.

I have a basic idea of the metric system. The problem is I can't eyeball a metric bolt and tell what's size it is or guesstimate the length of a log in centimeters, etc.

 

[ultrarunner]

It makes you wonder why we went with the "1/2 voltage" and "twice the current" method doesn't it. When much of the rest of the world seems to get along fine with a 230 volt system. I think some of it is peoples perception that 115 volts is safer in every day appliances than a 230 volt system.

On the DC automotive side of things, as engines got larger and harder to spin in the 50's, we went away from the 6 volt systems due to the very high currents needed and the very thick wires needed, and went to 12 volt system. But why didn't we go the next step like the military did and go to the 24 (nominal battery voltage) 28 volt charging voltage system? The currents needed to spin the starter is 1/2 of a 12 volt system. All the wiring can be smaller including the winding's in the motors. All of the Telephony central office power plant is a 48 volt system for the same reasons. I don't know for sure why things shake out the way they do. :confused3:

Even seen some 8-volt systems for DC and I think some planes are 24-volt...

My Hospital Gensets are 24 volt with two 12 volts in series...

 

[4570Man]

I would have much use for a saw with a 22mm bar, either.

View attachment 531766

Bruce

Did you photoshop shop that or is it for chainsaw carving or something?