[Shop-talk] Electric String Trimmers
Jimmie Mayfield
mayfield+shoptalk at sackheads.org
Tue Aug 20 21:03:42 MDT 2019
It's probably better to compare watt-hours rather than amp-hours since
battery voltages vary. The Ego 5ah @ 56V battery has 280 watt-hours of
power. The 12ah Dewalt Flexvolt battery (12ah in 20V mode, 4ah in 60V
mode) has 240 watt-hours of power. So the 5ah Ego battery is a little
bigger. Dewalt does offer a 7.5ah battery but it's in their 40V lineup
(300 watt-hours) that's geared towards landscapers. It's kind of a
shame that Dewalt had to bifurcate their batteries like that. They
could have just made their landscaper-pro tools use the same 60V
Flexvolt battery...
Ego also offers a 7.5ah battery but it's heavy and expensive (cheapest
way to buy one is to buy a mower with the battery, keep the battery and
sell the bare mower on Ebay). They also has a 28ah backpack kind of
like the Stihl and Husqvarna backpacks but it's aimed at landscapers
(and priced as such).
On 8/20/19 6:38 PM, John Innis via Shop-talk wrote:
> I have not used the EGO stuff, but if 5ah is the biggest battery they
> have, I would not expect much out of them. The smallest battery I have
> for my Dewalt stuff is 6ah, and I only use that one on the drill and
> impact driver. I have a 12ah battery for my string trimmer, and on
> high mode it has as much torque as my straight shaft echo SRM-2100. I
> also have the Dewalt chain saw, and I have been very impressed with
> it. I used it to cut down, limb and buck a 25' tree about 8" in
> diameter. WIth the 12ah battery it did the job without any struggling
> and even had about 60% capacity when done.
>
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