Hoboy does she have some nice batteries...
*From:* Brian Webster
*Sent:* Thursday, February 13, 2020 11:49 AM
*To:* 'AnimalFarm Microwave Users Group'
*Subject:* Re: [AFMUG] Alibaba LiFePO4 48V 200Ah
battery packs?
Same here……
Thank you,
Brian Webster
www.wirelessmapping.com <http://www.wirelessmapping.com>
*From:*AF [mailto:af-boun...@af.afmug.com] *On
Behalf Of *Mathew Howard
*Sent:* Thursday, February 13, 2020 12:41 PM
*To:* AnimalFarm Microwave Users Group
*Subject:* Re: [AFMUG] Alibaba LiFePO4 48V 200Ah
battery packs?
I'm afraid to click on that link...
On Thu, Feb 13, 2020 at 10:50 AM TJ Trout
<t...@voltbb.com> wrote:
Also bigbattery.com <http://bigbattery.com> is
another good source
On Thu, Feb 13, 2020, 8:46 AM Steve Jones
<thatoneguyst...@gmail.com> wrote:
some guy named ron is coming over to charge
my batteries now
On Thu, Feb 13, 2020 at 10:20 AM Brian
Webster <i...@wirelessmapping.com> wrote:
To make sure you get the proper
connectors, why else?
Thank you,
Brian Webster
www.wirelessmapping.com
<http://www.wirelessmapping.com>
*From:*AF
[mailto:af-boun...@af.afmug.com] *On
Behalf Of *Chuck McCown
*Sent:* Thursday, February 13, 2020 10:42 AM
*To:* AnimalFarm Microwave Users Group
*Subject:* Re: [AFMUG] Alibaba LiFePO4
48V 200Ah battery packs?
I wonder why they want to know my gender?
Sent from my iPhone
On Feb 13, 2020, at 3:22 AM, TJ Trout
<t...@voltbb.com> wrote:
Battery hookup.com
<http://hookup.com> has the modules,
don't buy them all guys. They say
Daly BMS works good. Make sure you
get a bms with low temp and low
voltage disconnect.
On Wed, Feb 12, 2020, 6:26 PM
<ch...@wbmfg.com> wrote:
Do tell. Where do you get the
batts? What BMS are you using?
Do you want to resell? I would
volunteer to be logistics and
fulfillment if you want.
*From:*TJ Trout
*Sent:*Wednesday, February 12,
2020 7:19 PM
*To:*AnimalFarm Microwave Users
Group
*Subject:*Re: [AFMUG] Alibaba
LiFePO4 48V 200Ah battery packs?
Guys, every chemistry of lithium
battery (lifepo4, li-ion, lto,
etc) are available in 1 to 10 KW
modules at less than $100 a
kilowatt hour most of them test
between 70 to 99% of the rated
capacity mostly removed from
electric vehicles anyways we
repurpose them into storage for
our equipment you just need a 48
volt BMS to balance the cells
and provide low temperature and
low voltage protection.
On Wed, Feb 12, 2020, 5:50 PM
Robert <i...@avantwireless.com>
wrote:
They have three problems..
1) Cost.. Yeah they break
the bank. 2) low voltage
compared to other
chemistries, which means
_more_ cost 3) poor
efficiency.. You put in 100
watts, you only get 80 watts
out. All of this is from
listening to Will Prowse..
He has an excellent set of
tubes on them...
https://www.youtube.com/channel/UCoj6RxIAQq8kmJme-5dnN0Q
On 2/12/20 5:33 PM, Steve
Jones wrote:
these they say are good
for subzero charging,
thats what appeals to me
and that the subzero
doesnt affect discharge
rate
On Wed, Feb 12, 2020 at
6:39 PM Robert Andrews
<i...@avantwireless.com>
wrote:
Lithiums degrade
with temps over 130
degrees F (
depending upon
chemistry and if you
attempt to charge
them below freezing.
Failure can
result from trying
to charge below
freezing. Between
those extremes
they do pretty
well. The below
freezing is a deal
breaker for outside
solar. There are
manufacturers (
BattleBorn + others
) that are coming
out with heaters to
get around that.
On 02/12/2020 04:21
PM, Mathew Howard wrote:
> I'm wondering how
well lithiums hold
up compared to
flooded cells in a
>
non-environmentally
controlled area. I
suspect it's worse.
>
> On Wed, Feb 12,
2020 at 6:20 PM
<ch...@wbmfg.com
>
<mailto:ch...@wbmfg.com>>
wrote:
>
> In my 42+
years of dealing
with stationary
flooded cells is
that you
> can
> easily get 20+
years from them if
they are properly
maintained and
> kept in
> an
environmentally
controlled area.
>
> -----Original
Message-----
> From: Bill Prince
> Sent:
Wednesday, February
12, 2020 5:04 PM
> To:
af@af.afmug.com
<mailto:af@af.afmug.com>
> Subject: Re:
[AFMUG] Alibaba
LiFePO4 48V 200Ah
battery packs?
>
> I think you
would expect at
least 2-3 times the
life with lithium
> (almost all the
various chemistries
currently in vogue).
You can also
> increase discharge
tolerance to 80-90
percent instead of
the usual
> lead-acid 50% (or
thereabouts).
>
> I think the
cost is still a bit
over the top. Maybe
another year or two
> depending.
>
>
> bp
>
<part15sbs{at}gmail{dot}com>
>
> On 2/12/2020
3:47 PM, Ken Hohhof
wrote:
> > Life also
matters.
> >
> > Half the
cost but has to be
replaced in half the
time would not
> be a good
> > deal. With
my luck, if
batteries die after
3 years, I'll have a
> big power
> > outage
every 37 months. And
it's not just a cost
calculation.
> Lugging
> > half
> > a ton of
new batteries out to
a tower and then
hauling the old
> ones back
> > for
> > recycling
sucks. So if
someone has battery
technology that lasts
> 10 or 20
> > years,
that's worth a bunch.
> >
> >
-----Original
Message-----
> > From: AF
<af-boun...@af.afmug.com
>
<mailto:af-boun...@af.afmug.com>>
On Behalf Of
ch...@wbmfg.com
>
<mailto:ch...@wbmfg.com>
> > Sent:
Wednesday, February
12, 2020 5:36 PM
> > To:
af@af.afmug.com
<mailto:af@af.afmug.com>
> > Subject:
Re: [AFMUG] Alibaba
LiFePO4 48V 200Ah
battery packs?
> >
> > Charging
time doesn't
interest me much in
a grid backup
> situation. The
> > cost
> > of the
battery per watt
hour is normally my
only consideration for a
> > backup
> > battery.
> >
> >
-----Original
Message-----
> > From:
Robert Andrews
> > Sent:
Wednesday, February
12, 2020 4:25 PM
> > To:
af@af.afmug.com
<mailto:af@af.afmug.com>
> > Subject:
Re: [AFMUG] Alibaba
LiFePO4 48V 200Ah
battery packs?
> >
> > Nice thing
about the lithium
Iron is any charger
that is programmable
> > will work.
And the faster you
can charge them the
better. You
> think
> > flooded
times of 2-4 hours
and with a big
charger the lithium
> banks can
> > charge at
100amps and 1 hour.
> >
> > On
02/12/2020 02:06 PM,
ch...@wbmfg.com
<mailto:ch...@wbmfg.com>
> wrote:
> >> 21 cents per
watt hour. That is
not competitive with
flooded cells.
> >> And what kind
of special charger
would you have to have?
> >> *From:* Peter
Kranz via AF
> >> *Sent:*
Tuesday, February
11, 2020 5:36 PM
> >> *To:*
af@af.afmug.com
<mailto:af@af.afmug.com>
> >> *Cc:* Peter Kranz
> >> *Subject:*
[AFMUG] Alibaba
LiFePO4 48V 200Ah
battery packs?
> >>
> >> Anyone
successfully built a
telecom UPS solution
using rack mount
> >> LiFePO4
batteries sourced
from china?
> >>
> >> There seems to
be endless arrays of
rack mount solutions
there:
> >>
> >>
>
https://www.alibaba.com/product-detail/48v-100ah-200ah-lithium-ion-bat
> >>
tery_60844575234.html?spm=a2700.details.pronpeci14.6.7e40675elEWkcL
> >>
> >> Prices run
about 25% the cost
of locally sourced
LiFePO4 solutions.
> >> The selection
is crazy however,
and who knows what
the gotchas are.
> >>
> >> *Peter Kranz
> >>
*www.UnwiredLtd.com
<http://www.UnwiredLtd.com>
<http://www.UnwiredLtd.com>
>
<http://www.unwiredltd.com/>
> >> Desk:
510-868-1614 x100
> >> Mobile:
510-207-0000
> >>
pkr...@unwiredltd.com
<mailto:pkr...@unwiredltd.com>
> >>
> >>
>
----------------------------------------------------------------------
> >> --
> >> --
> >> AF mailing list
> >> AF@af.afmug.com
<mailto:AF@af.afmug.com>
> >>
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
> >>
> >>
> > --
> > AF mailing list
> >
AF@af.afmug.com
<mailto:AF@af.afmug.com>
> >
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
> >
> >
>
> --
> AF mailing list
> AF@af.afmug.com
<mailto:AF@af.afmug.com>
>
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
>
>
> --
> AF mailing list
> AF@af.afmug.com
<mailto:AF@af.afmug.com>
>
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
>
>
>
--
AF mailing list
AF@af.afmug.com
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
--
AF mailing list
AF@af.afmug.com
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
------------------------------------------------------------------------
--
AF mailing list
AF@af.afmug.com
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
--
AF mailing list
AF@af.afmug.com
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
--
AF mailing list
AF@af.afmug.com
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
--
AF mailing list
AF@af.afmug.com
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
--
AF mailing list
AF@af.afmug.com
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
--
AF mailing list
AF@af.afmug.com
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
------------------------------------------------------------------------
--
AF mailing list
AF@af.afmug.com <mailto:AF@af.afmug.com>
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
