I think you are right. No series strings. Has to be due to
equalization problems.
Perhaps they all have internal impedance that varies significantly
from battery to battery.
But internally, the battery is a series string of cells.
Perhaps someone can send a note to the manufacturer asking for an
explanation.
*From:* Harold Bledsoe
*Sent:* Sunday, June 21, 2020 8:39 AM
*To:* AnimalFarm Microwave Users Group
*Subject:* Re: [AFMUG] Alibaba LiFePO4 48V 200Ah battery packs?
“Do not use two or more batteries in series.”
Does that mean 2 is ok or not ok? I’d read that as 2 is not ok.
*From: *AF <af-boun...@af.afmug.com> on behalf of Peter Kranz via AF
<af@af.afmug.com>
*Organization: *Unwired Ltd
*Reply-To: *AnimalFarm Microwave Users Group <af@af.afmug.com>
*Date: *Saturday, June 20, 2020 at 11:10 AM
*To: *'AnimalFarm Microwave Users Group' <af@af.afmug.com>
*Cc: *Peter Kranz <pkr...@unwiredltd.com>
*Subject: *Re: [AFMUG] Alibaba LiFePO4 48V 200Ah battery packs?
Found this vendor.. pricing seems too good to be true. Not sure why
they have the 2 units in series limitation however, that kinda blows
the 48V solution. Going to order a couple samples for testing.
Peter Kranz
www.UnwiredLtd.com
<https://eur06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.unwiredltd.com%2F&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213356838&sdata=M9wojby1qVFY5kFJ4v6aOmG8Sin8VcrstTKXlbT8SQo%3D&reserved=0>
Desk: 510-868-1614 x100
Mobile: 510-207-0000
pkr...@unwiredltd.com
*From:* AF <af-boun...@af.afmug.com> *On Behalf Of *Peter Kranz via AF
*Sent:* Wednesday, June 17, 2020 11:59 AM
*To:* 'AnimalFarm Microwave Users Group' <af@af.afmug.com>
*Cc:* Peter Kranz <pkr...@unwiredltd.com>
*Subject:* Re: [AFMUG] Alibaba LiFePO4 48V 200Ah battery packs?
Did you order via Alibaba? What did you end up paying for them?
Peter Kranz
www.UnwiredLtd.com
<https://eur06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.unwiredltd.com%2F&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213356838&sdata=M9wojby1qVFY5kFJ4v6aOmG8Sin8VcrstTKXlbT8SQo%3D&reserved=0>
Desk: 510-868-1614 x100
Mobile: 510-207-0000
pkr...@unwiredltd.com
*From:* AF <af-boun...@af.afmug.com> *On Behalf Of *Harold Bledsoe
*Sent:* Monday, June 15, 2020 7:36 AM
*To:* AnimalFarm Microwave Users Group <af@af.afmug.com>
*Subject:* Re: [AFMUG] Alibaba LiFePO4 48V 200Ah battery packs?
Not an answer to your question but FWIW I got some 12V/100AH
batteries from Meritsun to use in a golf cart and those have worked
very well so far. These are wired in series to do 48V that the golf
cart needs.
*From: *AF <af-boun...@af.afmug.com> on behalf of TJ Trout
<t...@voltbb.com>
*Reply-To: *AnimalFarm Microwave Users Group <af@af.afmug.com>
*Date: *Saturday, June 13, 2020 at 6:28 PM
*To: *AnimalFarm Microwave Users Group <af@af.afmug.com>
*Subject: *Re: [AFMUG] Alibaba LiFePO4 48V 200Ah battery packs?
If anyone is using the lifepo4 rack mount batteries could you comment
on which capacity you went with?
I'm trying to figure out which capacity is the best form factor in
terms of weight size etc.
Strange that the 200ah unit is marginally larger but twice the
weight. The 100ah unit just be partially empty inside.
On Wed, Feb 19, 2020, 8:40 PM Ken Hohhof <af...@kwisp.com> wrote:
Ferric Chloride kills the coronavirus.
*From:* AF <af-boun...@af.afmug.com> *On Behalf Of *Chuck McCown
*Sent:* Wednesday, February 19, 2020 9:57 PM
*To:* AnimalFarm Microwave Users Group <af@af.afmug.com>
*Subject:* Re: [AFMUG] Alibaba LiFePO4 48V 200Ah battery packs?
My bare pcb provider got the go ahead to restart production Monday.
Sent from my iPhone
On Feb 19, 2020, at 7:54 PM, TJ Trout <t...@voltbb.com> wrote:
Shit, the other thing is when will China be a viable supplier
again? Anyone seeing shipments from China? We use 3 chinese
suppliers and they are MIA, wondering when things will become
normal again?
On Wed, Feb 19, 2020 at 5:57 PM Peter Kranz
<pkr...@unwiredltd.com> wrote:
Correct..
https://www.alibaba.com/product-detail/Lifepo4-Batterie-Lithium-48V-Lifepo4-Lipo_62343352866.html?spm=a2700.details.deiletai6.9.61a95ffebuB5z3
<https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.alibaba.com%2Fproduct-detail%2FLifepo4-Batterie-Lithium-48V-Lifepo4-Lipo_62343352866.html%3Fspm%3Da2700.details.deiletai6.9.61a95ffebuB5z3&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213366832&sdata=Dsoos%2FfsIhkaRZVdUEk9eXKRjjQDvL7rfYM%2BV4ASUP4%3D&reserved=0>
*Peter Kranz
*www.UnwiredLtd.com
<https://eur06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.unwiredltd.com%2F&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213366832&sdata=nh8A6wIIbpOSowiJFDj0rNQOfJSqlXOTO5rqBirj72A%3D&reserved=0>
Desk: 510-868-1614 x100
Mobile: 510-207-0000
pkr...@unwiredltd.com
*From:* TJ Trout <t...@voltbb.com>
*Sent:* Wednesday, February 19, 2020 5:36 PM
*To:* AnimalFarm Microwave Users Group <af@af.afmug.com>
*Cc:* Peter Kranz <pkr...@unwiredltd.com>
*Subject:* Re: [AFMUG] Alibaba LiFePO4 48V 200Ah battery
packs?
Peter, so just over 1k$ for 100ah@48vdc?
On Wed, Feb 19, 2020 at 5:08 PM Peter Kranz via AF
<af@af.afmug.com> wrote:
Second calc is wrong:
The equivalent LiFePO4 new unit:
1x MeritSun LFP100-48 Units = $1100 (138 lbs)
@100% DOD = 4800Wh of storage in a package 16”deep and
8.7” high or $.22/Wh
So its actually half the price of my Deka solution
per Wh.
*Peter Kranz
*www.UnwiredLtd.com
<https://eur06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.unwiredltd.com%2F&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213376826&sdata=6qgqkRfDl9c0G3sUQnJh3R0bbTsJEYOSfWk1uBN0BR4%3D&reserved=0>
Desk: 510-868-1614 x100
Mobile: 510-207-0000
pkr...@unwiredltd.com
*From:* AF <af-boun...@af.afmug.com> *On Behalf Of
*Peter Kranz via AF
*Sent:* Wednesday, February 19, 2020 2:28 PM
*To:* 'AnimalFarm Microwave Users Group'
<af@af.afmug.com>
*Cc:* Peter Kranz <pkr...@unwiredltd.com>
*Subject:* Re: [AFMUG] Alibaba LiFePO4 48V 200Ah battery
packs?
Chuck, something you may want to consider in your
calculations is that I am comfortable taking LiFePO4
batteries to 100% DOD, whereas I never go below 50% DOD
for my AGM backup systems. I guess one could make a case
that I’m not cycling my AGM systems very much, so I
shouldn’t care about the huge cycle life penalties of
100% DOD in which case your spreadsheet is still valid.
But assuming we go with the 50% DOD argument, I can fit
4x170Ah AGMs in the bottom of my racks:
4x Deka 170Ah 12AVR1700-ET @ $495 = $1980 (120 lbs x 4 =
480 lbs)
@50% DOD = 4080Wh of storage in a package 22” deep and
12.6” high or $.48/Wh
The equivalent LiFePO4 new unit:
1x MeritSun LFP100-48 Units = $2200 (138 lbs)
@100% DOD = 4800Wh of storage in a package 16”deep and
8.7” high or $.45/Wh
So, my conclusion so far is if you are buying relatively
expensive telecom rated AGM batteries and only going to
50% DOD with them, you may be breaking even with LiFEPO4
based systems.
*Peter Kranz
*www.UnwiredLtd.com
<https://eur06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.unwiredltd.com%2F&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213376826&sdata=6qgqkRfDl9c0G3sUQnJh3R0bbTsJEYOSfWk1uBN0BR4%3D&reserved=0>
Desk: 510-868-1614 x100
Mobile: 510-207-0000
pkr...@unwiredltd.com
*From:* AF <af-boun...@af.afmug.com> *On Behalf Of
*ch...@wbmfg.com
*Sent:* Friday, February 14, 2020 10:33 AM
*To:* AnimalFarm Microwave Users Group <af@af.afmug.com>
*Subject:* Re: [AFMUG] Alibaba LiFePO4 48V 200Ah battery
packs?
I repost the list.
You can get a front post telecom batt for 16 cents per
watt hour. But yeah, 20 cents is more like it.
If solar flooded cells are OK, those can be had in the 7
cent range.
*From:*TJ Trout
*Sent:*Friday, February 14, 2020 11:20 AM
*To:*AnimalFarm Microwave Users Group
*Subject:*Re: [AFMUG] Alibaba LiFePO4 48V 200Ah battery
packs?
I don't know what you guys are smoking :) but SLA/VRLA
batteries are $200+ kh/w unless we are talking walmart
boat batteries which are ~$100kw/h, I just posted two
sites with li-ion batteries with many options for
70-100$ per kw/h ??
On Fri, Feb 14, 2020 at 8:46 AM Robert
<i...@avantwireless.com> wrote:
I think you nailed it. And until commercial Li
batteries reduce price by 1/2 or more they aren't
competitive except in special use cases. (RV and
such)... with 1/2 price drop and 2x the
performance it's effectively a 4x difference in
requirements and then they equal the utility of wet
deep cycle. They really need to be less than 1/2
the price to be a no-brainer...
On 2/14/20 8:03 AM, Mathew Howard wrote:
As I see it, for backup or solar applications,
all that really matters is $/kWH, lifespan, and
temperature tolerance (and that generally
doesn't even matter if they're not outside). Are
there any realistic advantages from lithiums
other than size/weight? That's obviously
important for a cell phone or an electric car,
but it's pretty much irrelevant for what we're
talking about doing.
On Fri, Feb 14, 2020 at 9:18 AM Chuck McCown
<ch...@wbmfg.com> wrote:
I only care about $/kWH
Sent from my iPhone
On Feb 13, 2020, at 5:05 PM, TJ Trout
<t...@voltbb.com> wrote:
Chuck, if you are after high kw/h and
don't mind low density, the Leaf packs
are really awesome, the modules are
basically made to be modularly packed,
you can use all-thread. Several off the
shelf PCB's available to make them into
8s, 16s packs with all of the cell
voltages already pinned out, basically a
diy kit is available to make them into
packs and they are sub $100/kwh
On Thu, Feb 13, 2020 at 1:05 PM TJ Trout
<t...@voltbb.com> wrote:
all of the batteries
batteryhookup.com
<https://eur06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fbatteryhookup.com%2F&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213386820&sdata=onGRcX2ogagLA%2BT4nOHm%2FnAX8eyyHXsNZ8l3G9cSYvM%3D&reserved=0>
and bigbattery.com
<https://eur06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fbigbattery.com%2F&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213386820&sdata=%2FzGltdLmL%2Fcwjvh%2F%2BjbvqzeQbpyRrXnfweGoiKwsGRI%3D&reserved=0>
are _used_ or new old stock, nothing
new.
On Thu, Feb 13, 2020 at 1:02 PM TJ
Trout <t...@voltbb.com> wrote:
you get what you pay for, all of
these guys guarantee the models
to discharge to the specs they
provide or money back
On Thu, Feb 13, 2020 at 11:17 AM
Robert <i...@avantwireless.com>
wrote:
You should be aware, that
bigbattery.com
<https://eur06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fbigbattery.com%2F&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213396815&sdata=PsV%2FWk%2F8dGGHRuZKaTmKuA0rinU9HPlLQCKA4nG5HNs%3D&reserved=0>
is selling _used_
batteries. For example the
24v "powerwall" 3KWh unit
for $699 is a used unit per
Will Prowse. His testing
showed 67% degradation from
new. What the cycle life of
a 67% depleted battery array
is unknown..
On 2/13/20 10:54 AM,
ch...@wbmfg.com wrote:
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
<https://eur06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.wirelessmapping.com%2F&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213396815&sdata=25Ou%2FH7jT4b%2Bk4SI%2F9PMnQyOcNixrLTJPy63Ve1BKiY%3D&reserved=0>
*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
<https://eur06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fbigbattery.com%2F&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213406809&sdata=caOObT%2FiPTExA%2FwatYlHm%2Fv9VIDmnZK0YeHc7DkvBGQ%3D&reserved=0>
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
<https://eur06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.wirelessmapping.com%2F&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213406809&sdata=5hyC46dpptKlnrKh1HjaKN8TMkS%2Fdde8A3qiQ0gGM2k%3D&reserved=0>
*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
<https://eur06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fhookup.com%2F&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213406809&sdata=%2BWm3Tz9hNk%2B%2Fo9w1UYNW7r%2BtxnMmlclM8uS5ngTJ5sA%3D&reserved=0>
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
<https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.youtube.com%2Fchannel%2FUCoj6RxIAQq8kmJme-5dnN0Q&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213416803&sdata=nid3fpSMCK8XwnloIWix9dlyU8bYkuTC81UXvJOPiZw%3D&reserved=0>
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
<https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.alibaba.com%2Fproduct-detail%2F48v-100ah-200ah-lithium-ion-bat&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213416803&sdata=wY9Lc%2BosZ%2BN2fD3oKNia2NApysiXNjKhnZrZAtTxn9k%3D&reserved=0>
> >>
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
<https://eur06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.unwiredltd.com%2F&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213426800&sdata=3f84Q3iBvVdcZGDt1fpnCgQ5eycCR9Ry0tktM8TGUE8%3D&reserved=0>
<http://www.UnwiredLtd.com
<https://eur06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.unwiredltd.com%2F&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213426800&sdata=3f84Q3iBvVdcZGDt1fpnCgQ5eycCR9Ry0tktM8TGUE8%3D&reserved=0>>
> <http://www.unwiredltd.com/
<https://eur06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.unwiredltd.com%2F&data=02%7C01%7C%7C172045972b0945bee34608d81534609a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282662213436792&sdata=51L9P593RViN56lKAdHFR5qt%2FD8Uv20xtcC1kH6BRYY%3D&reserved=0>>
> >>
Desk:
510-868-1614
x100
> >>
Mobile:
510-207-0000
> >>
pkr...@unwiredltd.com
<mailto:pkr...@unwiredltd.com>
> >>
> >>
> ----------------------------------------------------------------------
> >>
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