I understand with a BMS that as per
> cell voltage is reached shunts/resisters are used, what happens when the
> pack is fully charged without a smart signal to the charger? Do the
> shunts just continue to work absorbing charge/ generating heat?
My charger is set to be the right voltage but
I bought a pack or lihium ion of cells and they arived pretty much dead.
like 0 or .25 each cell.
I used 306b nicad setting to bring them up to 3.00, then swtiched to
lipo to charge to 3.70 .
someone told me that charging theses cells could be dangerous, because the
dendrits could lead
https://www.ebay.com/p/1500w-0-999h-Digital-Display-Time-Delay-Relay-Timing-Timer-Cycling-Module-DC-12v/16027066160?_trksid=p2047675.l2644
theses come in many variations. some go from few seconds to 999 hours
with delay also.
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On Sun, March 17, 2019 6:09 pm, Dan Baker via EV wrote:
> Great question Ken, want the same answer! I have 2 nice Sevcon Lead acid
> chargers that I would like to re-purpose for charging Lithium. End
> voltages would likely be too high, I am planning on running a BMS. But
> when max voltage is
On Mon, March 18, 2019 3:45 am, Steve Heath via EV wrote:
> Alternatively get a dc-dc converter from ebay and use that as the front
> end. Your existing charger is the input and then set the output current and
both packs I have have shunts on each cell, but the bms is not sensing
properly, so i
From thoese of us with no bms HVC cut off, or top end shunts, or fragel
charging circuts or time of day.. I like to see some kind of a charger
timer that could control the input to the charger as on/offbut like
for varibale timing like1 min on / 10 mins off continusly maybe
some kind
> What is a 10ths wire?
ten thousands
If it was #10 AWG, then that is way,way to big.
>
>
> Bob
>
>
> On Sun, Jan 20, 2019 at 3:52 PM ken via EV wrote:
>
>
>> I cells are 2600 mah average reclamed / tested . lion . what or which
>> size wire shou
I cells are 2600 mah average reclamed / tested . lion . what or which
size wire should I use. I tryed a 10 ths 3 inch wire shorted across the
cell and it turned red 5 seconds but did not blow. I'd call my load low
as I'm working runing a ryboi blower with my 5s x 5p pack . I've not
measured
Can a single tesla moudual 24V, 233Ah, 5.2kWh, be broken opened up
rewired into sections so I can come up with a 21s cell pack.???
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Thou my cells are rather close in capity, I'm still thinkng of using fuse
wire as in the telsa pack . If i used the phone cable 2 pair cable that
runs around houses and used 3/4 inch form cell to bus bar would my 10
amp cells be protected ?
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I may be getting a battery pack of
https://www.ebay.com/itm/Johnson-Controls-24-Cells-Solar-Battery-90-vdc-2-5-k/123187038180?hash=item1cae8507e4:g:TV4AAOSwjatbITYi:sc:FedExHomeDelivery!97355!US!-1:rk:4:pf:0
with cell of
is there something Leaf Spyto see if you have a weak cell or
other losses ?
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I was think about battery sizes, 18650 too small n complex to put
togehter vs leaf cells to large n heavy. I'm thinking more of midsize
cells , can volt cells be force separated ? I know the pouch cells need
constricted and not punchered .
___
where you find your pack?
a local junk yard?
how do you know how much life is left in it?
which are G1 G2, ...
priced differantly?
does the junk yard have special conditions to haul it away or remove it?
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Sears sells an AGM battery thats a private label of the a military grade
battery. its half the price sence its a AGM it can do starting and deep
cycling. Buy it as a starting battery cheaper and better garntte and use
it for your Ev or RV . very weel built, no fuild , .
have you checked the voltage of each battery?
the controller may not be bad, why do think it is?
if the batteries are low, the bms or controller will not let it move.
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I and i'm sure others would to take led t8 bulbs form like HD and wire
htem directly to the dc, led strip inside, without even having to deal
with the 120 volt ac stuff, ballests, fixtures, invertors, etc.. just buy
the 4 ft bulb, break open the end, find the right place to solder on the
wires
Your link doesn't work.
I have a 1000 watt 72 volt hub motor.
On Mon, October 8, 2018 4:06 pm, Lawrence Rhodes via EV wrote:
> I am looking to convert my Steintrike to electric drive. I will use a
> double sprocket/jackshaft to combine my pedaling to a rear mounted motor.
> This system is
theres gobes other RC type displays that could do the same thing probaly
On Sat, September 22, 2018 4:22 pm, Michael Bamberg via EV wrote:
> Hi everyone,
>
>
> I'm a newly subscribed member and looking for a little help with my old
> Zap
> Xebra (please don't flame me, it's a lot of fun).
>
>
>
I'm trying to move using more battery leaf blowers . most come with 2,
4, 6 amp battery packs which are good for only 10 to 45 minutes . I'd
like more like 10 - 20 amps at ryobi 18 volts . does someone make a
Quality pack Lithium pack with bms or can I buy cells and one of those
snap in
I have a 85 volt system that draws 120 amps at 55 mph, but want to lower
my pack count (I found brand new cells ) but to do only top speed of 40
mph .
at 40 mph my voltage is 70 volts and 40 amps, Am i asking a oboius ? the
cells are 70 ah .
___
Where can theses be boughten ?
or is there some way to put cells into snap together plastic cell holders
to make a starter pack?
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I have a scooter that runs 24 cells LFP . I'm looking to do and extra add
on pack to extend my range. I could lower the volt on the pack to 65 -/+
and work just fine. but what what would be my best $/ah CAM72Fi or
leaf cells.
I can get CAM72Fi localy for $100 .
The BMS board is not designed to run a relay but it will
> control a small amount of amperage.
If you have a load much larger that your BMS can handle I load diectlty to
the cells then use the bms some how to ALEART when the low voltages
happen.
___
On Fri, June 22, 2018 11:38 pm, Roger Daisley via EV wrote:
> Reading thru the prior comments (which I really appreciate) I am starting
> to wonder if I'm getting ahead of the cost curve. Maybe I should carefully
> consider if lithium i.e., Leaf packs, is the way to go, at this time?
> Another
https://eugene.craigslist.org/mcy/d/2002-electric-vectrix/6587472796.html
it has no batteries, put in leaf cells like the the guy on you tube.
this is a shop teacher retiring
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my scooter has 24 60 ah cells and bms gone bad. I've been chargering
each cell singly to get pack back in full top balance. I still have 20
cells to go.
I want charge at full 25 amps with larger cables and use small leads with
clips to do balancing at the same time . the charger has a plugin
many sellers talk about thier 20" hub motor, but I think there selling a
hub motor geared for a 26" wheel which would make the rpm vs effecantcy
way off . I'm looking for a hub motor thats wound propery 20" wheel .
I'm looking for speeds around 20mph maybe 25 mph. I have 24 volts of
40ah calb
a bms or pcm like used for electric bikes. a single board , with all the
long cell wires and a HVC charger cut off and LVC buzzer .
hybridauto had something like it on there goft cart pack.
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I'm looking for a bms leafs cells from about 50 - 70 volts .
looking for something way cheaper than lihton or orian . maybe just a
simple board with simple fucntions like beep as an alarm , for hvc or lvc,
don't mind doing a little baby siting or mamnaul interevontion .
thou I have 2 ev scooters, and ev mower n blower, I'm looking for a
backup starter battery for my low use ice wagon. I don't want to use
Lead based , so which chemistry has a low Self Discharge, life4 sounds
safest over lipo.
I do have an Icharger so I can charge safley.
I have a medium sized 4
My scooters dc to dc is getting warm I what to run more led lighting do I
looking for a extra power probally 20-30 watts. And yes I'm reducing my
incandece load .
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AC switchs are built lighter duty, to save on cost, so using the ac power
plug
for swithcing current is a better way.
> Even though you can run these devices on DC, the switches on these
> appliances are not suitable for DC, only AC. You risk a fire. You can close
> the switch just fine on,
Many of the add on led autolights can run voltages range like 6 - 36 VDC.
that means you could make portable lighting form drill, yard tools power
packs , lawnmower, 24 volt bus wiring, and more. why be straned in the
dark.
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I have 2 scooter s 22 and 24 cells. I hocked onto the pack with 120 volt
plug in . I was very please to find out I could run 120 led bulbs, 120
volt motors with cumutators, like drill, skill saw, jig saw, hair dryer,
etc... !!
Caution! watch your pack voltage and use the power tools LIGHTLY as
On my scooter I have pack voltage parall tap. Myself n others might like
to find some thing that could output 12 volts dc at a 1-5 amps for
emegercy power in case system break down . decides a standard dc to dc
is there something "covered electrics box" to get use for this? could
power usb or 12
I have a jonway maxiscooter is it more aerodiamic with the wind shield on?
could I make a tarp from the windshield to trunk with fiberglass rods to
improve things?
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> I don't see a mid drive as problematic for a BikeE CT (hardtail).
Most mid drive at very expensive and you have to listen to NOISE of extra
gears.
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golden motors does have a 16" n 20" inch solid hub motor.
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Where did you get the 20" hubmotor?
I want one for my bike E .
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I have a Bike E with a 20" rear wheel I want to put a 36 volt at 500 to
1000 watt hub motor there but I want it RPM effecint for 20 mph. where
do i find such a wheel at reasonable price.
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http://www.electriccarpartscompany.com/72V-768V-864V-br-24-Cell-Battery-Series-br-15A-100A-Max-Charge-Discharge-Current-br-UL-SGS-and-UKAS-Certified-br-Custom-Built-Lithium-LiFePO4-LFP-br-PCB-PCM_p_601.html
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http://www.headway-headquarters.com/
hes very honest and can get other equipment.
also shiftev.com
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Far as I can tell this is a Lead Sled. It has really nice features.
made in china
http://www.homedepot.com/p/Ryobi-RM480e-38-in-Battery-Electric-Riding-Lawn-Mower-RY48110/300246266
http://www.meangreenproducts.com/ride-on-ztrs/
made in america !! Very high quality...
search for super the battery, on OPB
http://www.opb.org/television/programs/nova/episodes/4403/
This is a very good program talking about the grid/storage, solar, hydro,
wind farms, etc..
Different types of batteries, weigh, cost, saftey, lenght of life,
complexities, etc..
Theres even some
France’s Minister of Environment Ségolène Royal has officially opened the
world’s first solar road this week with one kilometer and 2,880 solar
panels in Tourouvre-au-Perche. Now the country is waiting to see if the
road, built with construction company Colas‘ Wattway technology, will live
up to
whats a good for heating batteries ?
water bed heater pad ?
What else could be used?
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Being an EV scooter rider, I'm very silent around gas cars. I take back
streets just to be SAFE. My town has some 2 n 3 lanes in town streets.
I'm thinking of getting a head light modualator. but that will not help
being seen by those on the sides of me .
My idea is an electric engine sound.
I have the ev power moduals also . just HV/ LV make it hard to know whats
going on . I'd use water heater elements or dryer elements for the
draining/ testing . then use the volt meter when the LV comes and watch
the red/green lights . my 24 cell scooter has gbs cells, so I got "cell
log 8 s"
I have a Bike E with 20" back wheel . Where can I find a reasonably
priced wheel thats desgined to be effeient for that RPM / 20- 25 mph
and 36 volts.
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On my jonway 24 cell scooter, my may pack voltage looked great!!Them BAM,
it cut off . fortureatly I found a plugin . but was only a mile from home.
The BMS seems to control the power on to the contoller. not the heavy pack
load.
The bms has 4 wire ribbon cable going thru the cells. the BMS box
I haven't see the prices yet but I see this as a Advanced version of cell
log. with very good features.
Smart Balancer & BMS series
http://www.chargery.com/BMS24.asp it balances at 1.5 amps.!!
they have other smaller cells version also.
___
My new scooter has only dial a volt meter with no numbers just marks.
the past owner put a volt metter on that goes down to tenths. its a 24
cells gbs . I haven't decided which AMP HR meter to get yet. I thought
about using a part of the pack cable to make a temp Shunt or using the
bike volt
My Ev scooter needs some kinda of low speed sound.
I have 2 horns buttons the second could run a Ding Dong or??
Looking for something pleasant as not to scare very important bicycles or
joggers.
some kids things or squezzy horn?
IDEAS???
___
It there a device that can use the 8s cell or larger plugs, but have just
1 display for 16, 24, .. cells and have memory and some kind of beeper
to alert driver at a certian setable point for an LVC type of alarming?
I see smart phone related BMS but have no idea where to find them?
My
I'm looking for 1 to use as craw home type of thing. like 72 volt 20 amp hr.
60 ah burst , 30 ahr steady. w/ BMS . some thing with a plastic case n
anderson. maybe with pouch cells ? some that has been tryed n proven.
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Are theses from china or built in the USA? or..
On Wed, April 13, 2016 9:38 am, Peri Hartman via EV wrote:
> The Pure Outboard is meant to replace gas motors that run between 9.9
> and 40 horsepower. The Pure Watercraft models range from 9.9 to 25
> horsepower.
>
> The motorâs range varies
On Mon, August 31, 2015 9:03 am, Cruisin via EV wrote:
> I have a BMS for 24 Li-ion cells that provides cell balancing 24/7. Also
> provides for charger cutoff to prevent overcharging and cutoff to prevent
> over discharging. Available from crui...@live.com
tell me more about it ?
I wish I had something to use as a backup engine starting battery. I have
a medium sized 4 cyclinder. Wish I had an electric car but I ride
bicycle, electric bike cycle, electric scooter n city bus in my small
town.
I bought some super caps but can't get any solder to work. It there some
RC
some ev scooter manufactores are selling 72V33AH SAMSUNG 22P SDI lithium
battery.
http://www.samsungsdi.com/lithium-ion-battery/e-scooter
The capacity of lead-acid batteries is about 50% of the initial capacity
after 1.5 years of use (about 400 cycles), but that of Li-ion batteries is
about 75%
http://evalbum.com/3628
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I've been looking into importing an ev Scooter , I don't like regualar
motorcycles becuse of more possible leg injuries and cold wheather
riding. and alas no one sells them sence Vectrix is gone.and BMW is
thousandsss...
I like being inside a scooter for rain, cold, and a floor board to carry
Search electric motorcycle forums. He gets them for china checks um out
does some upgdes and sells them for thousands more .
I really dought manufactures anything ...
> Z. ELECTRIC MOTORCYCLES & SCOOTERS
> ZEV Engineering
>
>
> I saw their page and specifications. Their scooters seem to be
When my SCOOTER not motorcycle fell over while parked on the side of the
road, the wind came along blew it over and it cracked the plastics. Well
to my SCHOCK American Family Ins. considers the Plastics as being FARING
and is not covered under the standard policy.!! I said I don't have an
added
This manufactory claims very high charging rate is this tue or real?
Does USA have batteries like this ?
http://www.alibaba.com/product-detail/30-minutes-quick-charge-electric-motorcycle_230678021.html
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Is there a bike/portable volt/meter that shows at least 48 volt at least
40 amps and that can show ah capity used, ?perfer? In and Out amps and
will do that at least while the meter/system is turned on . some thing
cheaper and simpler than cycleanlyst .
want to know about a bike battery with high desinty cells that came thru
about a week ago, it had gps and brians to let you know how many miles
left, blue tooth , etc. was apossed to piush bicycle 100 miles..
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> You are assuming that just because you cannot touch it the temperature is
> a problem. That is not necessarily true. Do you have any specs that
> specify acceptable operating temperatures? damon
I should look. I thought of spraying water mist on the outside for the
magnet sake , but what
How will a person judge when holes will lead to breakage?
any examples of people doing this already ?
> Do you want the motor to be waterproof (rain, mud, ...) or not?
> If you leave it open (with *many* holes) then it can cool better
> but (like a DC motor) you better blow filtered/screened
When hill climbing roads at 25 mph and 40 amps, which it draws same amps
at 40 mph on the flat . on my 3 kw wheel, it starts heating up to the
point of be not touchable . I thought of drilling a very small hole 1/8
inch near the axle and fill the inside maybe 25% . but don't know what
kind of
where can some purchase a scoot outright?
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I'm looking for BMS/PCM for upto 24 cells that does active balancing and
has some type of setable almarming if any cell goes below a set point .
Orain junior only watches 16 cells .
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I'm wondering what cells are being used Brammo n Zero ?
Pouch cells?
They must be more energy desce and probally more expensive that calbs for
the $ / per watt.
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I have a mini bms w cell moduals. But alamaring on LVC while out in the
county is a little scary. most of my cells are pretty well balnced... I
also have a C. A. . BUT I'm looking for some thing that will alert as
each cell/s get to perset level. Orian is to spendy, eltion light also.
I have a
I looking for a 2 WIRE not 3 wire BMS/PCM for my mower , for 8 LFP cells
and 25/50 amps. I've seen some with high grade slicone wires and a metal
sink on the back. any ideas .. I don't wan the cheap evesamble red board.
http://evalbum.com/5070
tyr Jim at headway headquaters in washington . He answers the phonemost
always and offers good adivse, he very hoonest. Prices at kinda high but
his support is very good.
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Is there anohter BMS to use for leafs cells dicides orion?
for like 125 volts?
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For the case of like a 60 volts to 125 volts for a traction pack for like a
scooter.. why do some choose leaf cells ? seems like you have to get a
more specialised/ costly BMS like orion. I've seen youtube about Vectrix
conversions using both. leaf cells are american made ? do they have more
I'm looking for a 24 and a 36 volt bms/pcm that has only 2 leads, not 3
like the red evesamble. and something that has a heat skin plate. for
life04.
looking for 30 amps continuos.
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It there someone is oregon or lower washington thats installs theses.
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I have a very simple controller i'm using on my scooter.
throttle cable it shows
Blue, green, black
_
Controller manaual says
Red WhiteBlack
5V 1-4.5V0V
SO WHICH GOES TO WHICH?
Is the white the wiper?
I thinks its 5 k pot? does the a hall affect show resitance across
I'm wanting to do an add on battery pack, and would like to find out how
theres controller/ dc to dc is intgrated with the battery pack?
Whats the voltage of the pack etc.. is the bms in th battery box, etc..
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How do I find a chart about wire sizing n resitance.
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http://www.electriccarpartscompany.com/-NEW-ENERGY-br-4000-CHARGE-CYCLES--20-AH_c_138.html
I saw some pouch cells that claim 4000 cycles at %90 dod.
any one tested theses.
How are they for $ vs. power density.
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I saw some pouch cells that claim 4000 cycles at %90 dod.
any one tested theses.
How are they for $ vs. power density.
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Is there a chart that shows all batteries types and the number of cycles,
enegery density, heat runaway,etc.
I guess theres something called MCM lin min ???
they seem to be a lttle cheaper than lifeo4 but the voltage far off a
lttle faster ..
___
Thanks for the possible explation.
I gues for know I'll use the bike controller.
I found out 1 thing that this one has a low freg some thing in it and
it makes my motors BUZ hard at low speeds.
On Sat, April 25, 2015 7:20 pm, Cor van de Water via EV wrote:
Hi Ken,
I am not sure how a
On Fri, April 24, 2015 2:59 pm, Lee Hart via EV wrote:
ken via EV wrote:
Where do I find the AC motors that are used to run the mower blades
that are on the decks of the riding mowers like Recharge n Zeon hustler
etc. I looking for myabe 750, 1000 watt motors.
http
Where can I find ins. that rates the Zap as motorcycle.
most charge full sized car rates.
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If you are interested in the 36V DC motor, it even has a Hall effect
sensor on the axle that sits on top of the motor, to maintain RPM under
varying load, in case you'd like to add this to your controller (I think
that simply integrating the pulse output over time to get a DC voltage
Where do I find the AC motors that are used to run the mower blades that
are on the decks of the riding mowers like Recharge n Zeon hustler etc.
I looking for myabe 750, 1000 watt motors.
Also whats the differance between Dc brushless and Ac motor?
AC is 3 phase and Dc brushless has
The ones I use start Shunting at 3.65 and HVC at 4.00 .
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