I have the 7.5Ah EGO self driving and used to rave about it and take it to
talks about Energy.
But then my battery (or charger) died and I cannot face a $350 battery for a
$450 mower.
I suspect the charger maybe.  I have manually charged the cells while
checking all the voltages and they seem to be OK .

But in the mower or charger they only show the RED light.
System is maybe 3 years old?

Bob

-----Original Message-----
From: EV <ev-boun...@lists.evdl.org> On Behalf Of Haudy Kazemi via EV
Sent: Wednesday, June 24, 2020 3:55 PM
To: Electric Vehicle Discussion List <ev@lists.evdl.org>
Cc: Haudy Kazemi <kaze0...@umn.edu>
Subject: Re: [EVDL] Ego vs Greenworks?

No experience with Stihl electrics., but I do have 2-3 years experience
using 2 EGO manual drive mowers (and 2 blowers). They're much better than
the previous Pb-acid mower and corded mowers I have used.

The 7.5 Ah 56v battery (14s3p, using 2.5Ah 18650 cells) (14 x 4.0v = 56v
nominal, 14x4.2=58.8 peak) is best for the mower, especially if facing thick
grass as that is a high C rate scenario. The 5.0 Ah battery (14s2p, 2.5Ah
cells) works fine for smaller yards or thinner grass. 4.0 Ah batteries
(14s2p, 2.0Ah cells), 2.0 Ah (14s1p, 2.0Ah cells), and 2.5 Ah (14s1p, 2.5Ah
cells) batteries also exist.

Online searches indicate a 10.0Ah battery known as BA5600T also exists, at
least in Europe. I guess that may be 14s3p or 14s4p, respectively using
3.3Ah or 2.5 Ah cells. There is a battery external physical dimensions size
limit in their mower and snowblower designs, possibly preventing 14s4p.

It is unclear if there is a switch from 18650 to 21700 cells in the 10.0 Ah
unit. From the cell capacity ranges published here, it appears 3.3Ah+
capacity 18650 cells exist, making a 14s3p 10.0Ah configuration possible.
https://www.dnkpower.com/teslas-mass-production-21700-battery/

A weakness in older EGO batteries is there is no state of charger indicator
until you are down to the last 15% when a light turns solid red. They have
added a gauge to new batteries.


On Wed, Jun 24, 2020, 13:15 Denis Boutet via EV <ev@lists.evdl.org> wrote:

> Hi everyone, any one have experience with Stihl?
>
> Denis
>
> Le 20-06-24 à 13 h 19, EVDL Administrator via EV a écrit :
> > I've owned a total of 4 E-mowers (not counting the Elec-traks) so
> > far
> since
> > 1994 - a B&D, two Yard Machines (MTD), and a Greenworks.
> >
> > The B&D lasted the longest, but I had to replace the motor and the
> wheels.
> > Eventually the replacement motor died too, and since the plastic
> > deck was starting to crack from age and hard use, I gave up on it.
> > But at least spare parts were mostly available, and usually at
> > reasonable prices.
> >
> > The MTDs' motors both failed too.  The official factory motors were
> priced
> > over $300, more than the entire mowers cost, so the mowers were
> essentially
> > disposable.
> >
> > Probably the Greenworks will prove to be disposable too.  It's a
> > cheap
> and
> > cheerful Chinese mower.
> >
> > David Roden, EVDL moderator & general lackey
> >
> > To reach me, don't reply to this message; I won't get it.  Use my
> > offlist address here : http://evdl.org/help/index.html#supt
> >
> > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
> >       First they came for the journalists.  We don't know what happened
> >       after that.
> >
> >                                          -- Unknown = = = = = = = =
> > = = = = = = = = = = = = = = = = = = = = = = = = = = =
> >
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