OT: Sens Lounge: "Pleeease won't you be.....my neighbour"

[Micklebot]

Which makes me wonder...I thought these new electric motors were all instant torque and wouldn't get bogged down from that.

Why would an electric car accelerate quicker with instant torque even if it weighs more than gas cars, but than that same type of instant power would halt with the slightest bit of weight of snow interfering?

Weird how that doesn't happen with cars, where you add a bunch more weight, and the instant torque handles it well...but add resistance to spinning auger and it stops the motor?

Strange.

With EV cars the issue isn't power, but rather battery life.

But then with these, you can just get another battery that you can easily click in in 2 seconds...so battery life isn't an issue...but now power is?

Why the opposite issues from e cars lol

Is it the motor overheating or the battery? An EV car has sophisticated cooling systems for the battery, I suspect the snow blower doesn't have anything.

My understanding is Cold weather also lowers the voltage of a battery, which results in the motor drawing more current, which results in more heat at the motor, again, cars have sophisticated battery management systems to control for this, idk if it's cost effective to do so with a snow blower

 

[jbeck5]

Is it the motor overheating or the battery? An EV car has sophisticated cooling systems for the battery, I suspect the snow blower doesn't have anything.

My understanding is Cold weather also lowers the voltage of a battery, which results in the motor drawing more current, which results in more heat at the motor, again, cars have sophisticated battery management systems to control for this, idk if it's cost effective to do so with a snow blower

So I guess they will always struggle in any temperature if they're overheating in -20 temperatures until they develop a cheap method of temperature management.

Weird how I can be in +30 and mow the lawn for 45 mins and it will be fine... But -20 and the snow blower overheats in just a few mins lol.

I'm guessing it's the 40V battery is more than enough for a lawn mower but being pushed to its max by the snow blower?

Funny that the models I'm looking at take as many as 4 40V batteries at the same time and still overheat whereas as a single 40v battery in weather 50 degrees warmer is fine for my lawn mower.

Perhaps they need to put bigger batteries in those things if they overheat so much by being pushed to capacity?

Or would a computer/laptop fan not be enough to draw in cold air to cool the motor or battery?

 

[Micklebot]

So I guess they will always struggle in any temperature if they're overheating in -20 temperatures until they develop a cheap method of temperature management.

Weird how I can be in +30 and mow the lawn for 45 mins and it will be fine... But -20 and the snow blower overheats in just a few mins lol.

I'm guessing it's the 40V battery is more than enough for a lawn mower but being pushed to its max by the snow blower?

Funny that the models I'm looking at take as many as 4 40V batteries at the same time and still overheat whereas as a single 40v battery in weather 50 degrees warmer is fine for my lawn mower.

Perhaps they need to put bigger batteries in those things if they overheat so much by being pushed to capacity?

Or would a computer/laptop fan not be enough to draw in cold air to cool the motor or battery?

Honestly I'm not sure. My old gas snowblower would sometimes stall out when I hit the crap the plow pushed onto the end of my driveway, and it had a much bigger engine than a mower. Never had an issue with a gas mover stalling (I guess maybe if I let the grass get way too long?)

Batteries have a sweet spot that like to operate in, I suspect a mower's typical use case is in that sweet spot, so you don't have to worry about it, and since the load for a mover is way less, there's no issue with the motor overheating (they likely would use the existing rotation from the blade assembly to push air through and cool the motor if there was any issue).

I'm sure they could set something up to push sufficient cold air through the snow blower to not have it go into limp mode, they apparently just didn't do so sufficiently for the model in question, which my best guess would be is due to cost.