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<div class="moz-cite-prefix">Most blowers and pumps actually draw
less power under deadhead conditions. Full open ports / no back
pressure or no vacuum to pull against is the maximum load. It has
something to do with the aerodynamics and stalling of the
"wings". I don't remember the technical details.<br>
<br>
Dave<br>
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<br>
On 10/30/2019 11:58 AM, Charlie wrote:<br>
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<div>Chris, are you still heavily restricting the output air
flow? Maybe that would explain your crazy current draw. I
run the noggler for a couple of hours with a stock lead acid
battery pack, but I have a 5'x3' panel of 1/4" steel hardware
cloth letting the air out of the top of the leaf collection
cart.<br>
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<div>Apologies for not sending the pictures yet!</div>
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<div>--Charlie<br>
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<div dir="ltr" class="gmail_attr">On Mon, Oct 28, 2019 at 8:35
PM Rob Brockway via Elec-trak <<a
href="mailto:elec-trak@cosmos.phy.tufts.edu"
moz-do-not-send="true">elec-trak@cosmos.phy.tufts.edu</a>>
wrote:<br>
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<div dir="ltr">I have an elec-trak vacuum blower I bought
new from Bill Gunn years ago. Mine does not draw a lot
of amps, perhaps 15-22 amps. I can check the actual
amount next weekend if you would like. Reduces my
range a notably but nothing dramatic.</div>
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<div> On Monday, October 28, 2019, 11:41:47 AM EDT, Ken
Olum <<a href="mailto:kdo@cosmos.phy.tufts.edu"
target="_blank" moz-do-not-send="true">kdo@cosmos.phy.tufts.edu</a>>
wrote: </div>
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<div dir="ltr">Â From: "David Roden" <<a
shape="rect" href="mailto:etpost@drmm.net"
rel="nofollow" target="_blank"
moz-do-not-send="true">etpost@drmm.net</a>><br
clear="none">
 Date: Sun, 27 Oct 2019 20:41:43 -0400<br
clear="none">
<br clear="none">
 If you're running a 90ah battery flat in 30 mins,
your load is 180 amps! <br clear="none">
 That's HUGE. Lead batteries do NOT like that
kind of load.<br clear="none">
<br clear="none">
A similar problem with snow blowing is why I have
AGM batteries in my<br clear="none">
Ox. But there are some other issues. Is an
Elec-Trak wired with AWG 6<br clear="none">
wire? I don't remember. AWG 6 is rated for 75A
(with 90C insulation<br clear="none">
and 20C ambient). And isn't there a 90A circuit
breaker? Leaf<br clear="none">
vacuuming is much more of a continuous activity than
snowblowing and you<br clear="none">
do it at higher outside temperatures, so overheating
seems like an issue.<br clear="none">
<br clear="none">
                Â
   Ken
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