Lawrence Rhodes via EV wrote:
I'm looking at options for my Terratrike. Mid vs hub seems to be the thing.
Seems bike systems are only 80% efficient. Has any one had good success with
efficiency as well as speed. I'm looking to top out at 30mph with a 20 inch
wheel. Is voltage an issue? I'd li
Paul Dove via EV wrote:
Many researchers have been attempting this. MIT claims 100% increase in
capacity.
It might help to put this in the perspective of research scientists. They look
at some pair of reactants that look promising for a battery. They can calculate
the voltage that would be p
EVDL Administrator via EV wrote:
what would [be Goodenough's] motivation to make an outrageous or bogus
claim. It is not like he is shopping his invention to venture
capitalist.
I doubt that he's doing anything like that. But all kinds of bad things can
nuke a promising product between the la
Lots of good comments. As a Leaf owner myself, I like the car. Most important,
we could actually *buy* it here in the middle of Minnesota!
Like any car, we'll keep it as long as it provides useful and reliable
transportation. Changes in the market price simply don't matter. Who cares if I
coul
Jay Summet via EV wrote:
The miniBMS units have two large SMD resistors that dissipate up to 0.5 amps of
current while top ballancing, and get quite hot to the touch when doing so. No
heat sinks on them however, so I don't know if that would be "too hot" or not.
4v at 0.5a is 2 watts; that's a
Willie via EV wrote:
I'm in the process of testing a bunch of very grungy looking miniBMS cell
modules. The good ones, I'd like to spray with something to make them more
weather resistant. Looking for suggestions.
Hi Willie,
Most of the sprays provide pretty weak protection. In an outdoor envi
Cor van de Water via EV wrote:
Simple, that is exactly the difference between a service and a property. How
much did you pay for the purchase of your credit card?
If you could get your car for free and only pay a certain amount afterwards
for what you used, then it would be pretty fair to give t
Cor van de Water via EV wrote:
I have done the toe-adjustment on my "Classic" (2002) Prius many years
ago (2004)
And indeed noticed that although the mileage was slightly better, it
also became more "squirrely" to drive at speed.
I wonder if it would be worthwhile to provide "automatic" toe-in
Mark Abramowitz via EV wrote:
On Mar 8, 2017, at 10:57 AM, John Lussmyer via EV wrote:
On Wed Mar 08 09:58:47 PST 2017 ev@lists.evdl.org said:
There I agree 100%. There's a reason that IBM, Remington Rand, and
Burroughs weren't the ones who developed the first practical personal
computers.
Michael Ross via EV wrote:
i just listened to a podcast about GM going completely into hydrogen
fuel cells (head of development interview) instead of EV's.
Considering that H2 is a byproduct of natural gas production it all
fits together nicely, the underground fuel industries like H2, the
petrol
EVDL Administrator via EV wrote:
My plan was to hit it with a bit of sand paper just before connecting.
Again, I'm not an expert, but I think I remember reading that sandpaper
isn't so good for this. It roughens the surfaces, and that actually reduces
the heat transfer.
Someone correct me if
Jay Summet via EV wrote:
I'd prefer to be able to remove the components from the heatsync in the future
if I ever need to replace them, so I'm avoiding any adhesive or solders.
Well, solders melt. If you can solder it on, you can unsolder it off. :-)
But I don't think I'd use ordinary solder f
Mark Hanson via EV wrote:
Heat sink grease should be NON conductive electrically but thermally
conductive white grease. You can also use thermosil less thermally
conductive but less messy or Kapton.
"Conductive" heat sink compounds usually aren't all that conductive (i.e. they
won't carry hig
Lawrence Rhodes via EV wrote:
why don't they make a kwh per mile control...
That would be hard! In some driving conditions, it would lead to "infinite"
speed (would try to go as fast as possible downhill). In others, your speed
would be zero (going up a hill too steep to climb at X kwh/mile).
corbin dunn via EV wrote:
For some reason, this doesn't make sense to me. You are saying that you
need a speed sensor on each wheel, or else regen would create instability.
You could say the same thing for forward power applied by the motor. I
think this would only matter if you had a controller
Marco Gaxiola via EV wrote:
I have a question: Is that possible to have an AC induction motor to work
apparently normal but, after a moderate use, get the rotor coils very hot?
Not the stator neither the controller, just the rotor.
Yes. The rotor is in effect the secondary of a transformer. T
Cruisin via EV wrote:
If the chargers are not isolated you will destroy everything when conned in
parallel.
Good point! Some chargers aren't isolated.
But Sevcon chargers are all isolated.
--
Teaching children to program goes against the grain of modern education.
Just imagine the chaos if th
ROBERT via EV wrote:
Sounds likes induction charging the same as the EV1. New technology??
Actually, it sounds more like the Inductran inductive charging system
that's been used for industrial EVs for decades. Their system uses a big
60Hz transformer, cut it half, with one half on the road a
Peri Hartman via EV wrote:
I think this is an excellent precedent. Allow people to pay with credit
or debit cards. No subscription fees. Anything "proprietary" creates
resistance and a bar to entry, and makes it harder for competitor to
enter an area.
Heck, electricity is so cheap that coin-op
Dan Baker via EV wrote:
Hello EVDL group!
I purchased a couple Sevcon 48V DC Battery Charger 622/42202 850W 17A chargers
last year on ebay at a great price, for about $50 US each. They work
great, they aren't fan cooled but have large heat sinks that one can put a
fan on to keep them cool. I c
Thos True via EV wrote:
Great find! I remember finding the Popular Mechanics article about the
Corvolt (1967, if I recall). Of course as soon as the issue came out, GM
scuttled the project. I can't help but wonder where we would be if they
hadn't got in their own way.
You mean the Electrovair?
Jay Summet via EV wrote:
I have been researching replacement parts for my Curtis 1231c power
board a lot tonight. All of the parts and numbers are listed at this
blog post:
https://www.summet.com/blog/2017/01/11/curtis-1231c-replacement-power-board-components/
I believe I will be able to upgrad
VA7DVR via EV wrote:
I have mine apart presently, parts arrived but I have not had time to
tackle it.
http://divemaster.ca/kubvans/EV1/Controller%20mosfets%20sm.jpg
I have been using this drawing,
http://divemaster.ca/kubvans/EV1/curtis_1221b_schematic.pdf
This is the schematic for the Curtis 1
Cor van de Water via EV wrote:
GM treats the Bolt as if it is something totally new with the use of
many alu body panels and high strength steel alloy, but most body shops
have already plenty experience...
There have been lots of cars with aluminum body panels, not just the
Leaf. As I recall,
John Lussmyer via EV wrote:
My emails directly to you seem to be disappearing
Hi John,
I'm "replying to all" in hopes that this will reach you.
I got an email from you on 1/9/17, and replied to it at 3:34pm Central
time. Did you not get my reply? Here it is again:
John Lu
Peter Flipsen SLPinfo.org via EV wrote:
John,
Yes this Sunday at 11 am would be fine.
Sorry Lee et al. But as I said, what John describes is to me the perfect
scenario for giving my EV a new home.
I understand. Mine was similar (an EV for my son). But you need it to be
gone *now*. There's n
Cor van de Water wrote:
I understand that Lee does want to get it, but since he needs several days to
make it over there, needs someone local to keep it for up to a week so he is
guaranteed to have the vehicle when he shows up. Nothing like a bummer when you
dodge weather for a week of driving
SLPinfo.org via EV wrote:
This EV is now available for free. MUST BE TAKEN COMPLETE. WILL NOT PART
IT OUT. If you want parts you must take it all and dispose of the remainder
yourself. Will provide clean and clear title.
Hi Peter,
I'd be glad to take it, fix it, and find a good home. But I'm
Jay Summet via EV wrote:
I've opened it up and found (at least) two MOSFETS blown out right near
the logic board. Photos and lots of text here:
https://www.summet.com/blog/2017/01/08/curtis-1231c-8601-500a-pwm-dc-motor-controller-teardown/
Doesn't look too bad; it looks fixable. :-)
Be sure to
Jay Summet via EV wrote:
Ok, curiosity got to me and I decided to open up my failed Curtis 1231c.
The 8 screws on the bottom were only covered with two little rubber
plugs (no potting compound) which is different from what I'd read about
online. I removed them.
That means someone's been in the
Jay Summet via EV wrote:
On 01/08/2017 09:46 AM, brucedp5 via EV wrote:
So, instead of queuing to work on repairing or upgrading your dead
cursit, I
suggest you line up a robustly-designed controller to purchase when this,
your replacement cursit, dies (start saving your money now, and don't
s
brucedp5 via EV wrote:
You are on the road again using another cursit controller. But for how long?
After my first curtis (cursit) controller died, and was replaced with
another by the converter... [it died again]
Bruce, there's a bit more to the story:
- This was about 15-20 years ago
- You w
Cor van de Water via EV wrote:
I read the claims of the Patent... I do not understand their claim that
they determine an overcharge event by finding a *lower* impedance of the
cell than normal
If a cell SHORTS during charging, its impedance is certainly lower than
normal. Mighty easy to d
Bill Dube via EV wrote:
Doesn't Lee Hart's "Batt Bridge" do this?
Seems like it monitors cell behavior (impedance, voltage) and
continuously compares it with the group behavior.
Wouldn't the Batt Bridge be prior art?
Seems like it to me.
Yes, but I didn't patent it, and I don't have any lawyers
Danny Ames via EV wrote:
Yet another advanced strategy Tesla has come up with to keep Li battery packs
from thermal run away and charge safely and quickly.Danny
Patent Issued for Transient Detection of an Exceptional Charge Event in a
Series Connected Battery Element (USPTO 9529048)
Man, the
Rush Dougherty via EV wrote:
BTW, do not despair if you see the fluid level below plate top or find the
behavior of the
battery weak upon first use.
It's been a while since I've used Flooded Lead Acid but I think you should
despair if the water is below the plates... that means that air has
paul dove via EV wrote:
You can have lead acid batteries tested at Auto Zone. You would have to remove
them and take then there.
Possibly; but auto battery testers are often pretty feeble. They don't
really measure amphour capacity or starting current, but try to guess at
it with simpler tes
via EV wrote:
I would be shocked if my duty cycle was ever more than an hour or two.
In that case, you don't really need a brand-new industrial-strength
battery. They are built to work for 8 hours a day, day in and day out,
for 10-20 years. But (as you know), they also cost thousands of dolla
Pestka Denis via EV wrote:
This little truck is a blast to drive. I take it out whenever I can.
Without driver, it weighs ~ 2800 lbs.
With the Lithium's, I now have a 80 - 100 mile range.
I've also taken it to a lot of car shows.
It's no where near a show quality vehicle, but always seems to attr
I've used a number of things over the years.
Insulation does a *lot* to reduce the power needed for heating/cooling.
If you have 1" of styrafoam on all sides of your batteries, and you
drive your EV every day, you probably won't need heaters. The waste heat
produced by battery resistance durin
Thos True wrote:
Failing to insulated the exposed wires have been known to lead to some
nasty burns (on crew and vehicle), as well as damaged batteries and
battery boxes. Hope that this helps!
That reminds me. Electrical cables have some nasty surprises that can
cause serious mischief.
Batte
Matthew Quitter wrote:
I've been using a small styrofoam cup as quick insulation... didn't seem
adequate.
That does seem a bit risky. Not very strong, and falls off easily.
So there's no product that anyone sells that's built for purpose?
No doubt someone sells an (expensive) custom produc
ROBERT wrote:
Thanks. Lee. I need to study your reply. I need to get to work.
You're welcome! This is a complicated subject. Remember, electric motors
and inverters have had 100+ years of development by some of the
brightest minds in science and engineering -- all the way from Edison,
Tesla,
Matthew Quitter via EV wrote:
I was wondering what people do to insulate the ends of live HV cables during
installation and removal? Stop them accidentally touching something.
I slide on a piece of heat-shrink tubing (small wires) or a piece of
rubber hose (big wires or terminals).
--
Teach
Jim Walls via EV wrote:
This list is set up so that replies go to the originator rather than back
to the list. If you don't remember to manually add the list into the
address (or use "Reply all"), the list won't get the message. My personal
opinion is that this is a dumb way to set up a list, b
Matthew Quitter via EV wrote:
Firstly, does anyone get this? Tried replying to a couple of conversations
and it didn't work.
Hi Matthew,
Yes, it arrived in my email IN box nice and clear. You're connected! :-)
--
Teaching children to program goes against the grain of modern education.
Just im
Ing. Marco Gaxiola via EV wrote:
I agree with robert, how the inverter is capable of 'charge the battery' from
regen when at very low RPMs?
OK, the first key to understanding is that the six IGBTs each have a
diode connected across it. The six diodes are wired in a standard
3-phase rectifier
Rick Beebe via EV wrote:
It was fun watching the youtube video linked off that page and seeing
Bob again... Watching the next video that Youtube popped up "Citicar
Cruise to Bob's", it struck me that my other car--a Smart ED--is pretty
much the modern day version of the Citicar. It even has plast
EVDL Administrator via EV wrote:
Curtis primarily makes golf car controllers, which don't have as tough a
life as those for road EVs.
And then, us EVers tend to "push" them beyond ratings. If a rope says
"200 pound max", do you use it to safely pick up 200 lbs? Not if you're
smart. But we use
brucedp5 via EV wrote:
my S-10 Blazer conversion... arrived as a 120VDC T125 system using a
Curtis 1221x controller to power the 9" ADC dual-shaft e-motor... the
first curtis died...
openings in that potting material... outside air would breath in moisture...
would cause corrosion, which would
Hoegberg via EV wrote:
I have an 1221 that I want to use for a new car, but this one has not been
used and have been outdoors for 20 years.. in bad climate, so it probably need
some internal drying..
After that length of time, I would assume the electrolytic capacitors
are bad. I'd replace th
Jay Summet via EV wrote:
I have sent a message to the seller of the used Kelly controller on
EVTrading post as that appears to be the best option available right
now...
The Zilla 1K would be my choice for a new build, as I've heard nothing
but good things about the Zillas...
A drop in replaceme
EVDL Administrator via EV wrote:
And, [the Citicar] was the cheapest car in America!
That may have been true for the very earliest ones, but the Citicar that
Consumer Reports tested in 1975 cost them $2946. That included $90 for a
heater (!) and $36 for a spare tire (!). MSRP for a basic 1975
If only the CCars had been made with more durable plastic. If only
someone would make replacement bodies out of more durable material.
Gail Lucas via EV wrote:
As of July of 2016 Peter has replacement parts but I don't know if they
are also ABS.
Good info, Gail!
The ABS plastic actually hel
Willie via EV wrote:
On 01/01/2017 12:26 PM, Lee Hart via EV wrote:
I think that is what Bob Beaumont and Bob Rice were after with the
CitiCar. Simple as dirt, fun to drive, and so ugly it's cute. And, it
A year or so ago, I read Beaumont's book titled The Lost Cord.
Fascinating! Bo
EVDL Administrator via EV wrote:
The result is a vehicle that closely resembles the Isetta of old, just
a bit bigger and rounder...
This is a pretty good start... The problem is the price... Make it cute,
make it fun... and make it cheap.
I think that is what Bob Beaumont and Bob Rice were a
Willie via EV wrote:
I once blew a main fuse on my conversion. Didn't find any obvious
problems, replaced the fuse and never had more trouble with it.
Fuses are indeed affected by age, vibration, environment, and
temperature. So it could be just that the fuse got old and tired. :-)
They "blo
Jay Summet via EV wrote:
When I ran the motor off a 12 volt battery it was fine.
Aha; that's good!
I'll try
installing a spare fuse and see what happens after I put things back
together.
A fuse is just a piece of wire, carefully chosen to melt if you exceed a
certain current. So you can ma
Jay Summet via EV wrote:
As I rotate the shaft by hand, the ohm meter goes negative (I assume due
to current/voltage being generated by the motion.)
Correct. There is always a little residual magnetism in the field, so
moving the motor will generate a voltage. This messes up any readings
you
John Lindsay via EV wrote:
You might like to run heavy gauge wire to the bucket and the thinner resistance
wire entirely in the water. The insulated wire may melt outside the water.
Definitely a good idea. I typically dunked the entire length of
"resistance" wire, and the clip leads to its en
From: Jay Summet via EV
>Speaking as somebody who has charged at 1.4 kW for over a year and a
>half, L1 charging can meet almost all of your needs as long as you plug
>in whenever you are parked.
That's been my experience as well. We've had a 2013 Leaf for 2 years now, and
almost always charge
From: David Nelson via EV
>Please note that I am not asking about electrical code here! I know
>what the code says.
>
>What is the actual sustained current carrying ability of the NEMA
>L6-30 plug/sockets?
The ACTUAL capacity is determined by the temperature rise. The materials used
to make the
With this type of load, remember that the rod or pipe is electrically live. And
so is the water that touches it!
I like using a coil of insulated copper wire, dunked in a bucket of water. The
wire can be considerably undersized for the current listed in a wire table --
we *want* it to have exce
Ed Blackmond via EV wrote:
The GM naming scheme isn't that bad. They could introduce a plugin hybrid SUV
and call it the Revolt. How about an all electric minivan called the Carriage
Bolt?
Or they could bring back the original name for the EV-1... the Impact. :-)
--
Teaching children to progr
Peri Hartman via EV wrote:
It took a while, but I got a link to the "final" spec from NHTSA.
http://www.nhtsa.gov/staticfiles/rulemaking/pdf/QuietCar_FinalRule_11142016.pdf
Note: One of my engineering newsletters just had an article about
automakers *adding* engine noises to normal ICE cars an
Jan Steinman via EV wrote:
Keep in mind that many high-speed motors are designed or adjusted to operate
optimally in one direction. The brush location is “advanced” so that the
magnetic field is at the optimum location for a particular direction and speed.
Running such a motor in reverse often
brucedp5 via EV wrote:
I decided to give a call to that LA dealership to find about this deal.
the bottom line is: all the $49/me 3yr lease 500e EVs allocated for that
deal are leased out (all-gone).
It's a too-good-to-be-true price. So, is this the old "bait and switch"?
Was anyone (besides t
EVDL Administrator via EV wrote:
I'm curious if this is normal.
No, it's not. This guy is trying to rip you off. This sounds like the fake
money order / cashier's check scam... I suggest that you cancel the transaction.
I wouldn't jump to conclusions just yet. He may be a scammer; but he ma
Cor van de Water via EV wrote:
Regarding recharging while being towed: I have at some point (a couple years
ago) considered buying a Leaf in Los Angeles and partly driving, partly
flat-towing it back to the Bay Area. I already realized that you don't really
need to stop for charging if you use
Peri Hartman via EV wrote:
While there are obvious virtues to have EVs emit sounds, and I will not
oppose the effort, what can we do to ensure the sounds are quiet enough
and pleasant?
It's always seemed to me that my EVs make plenty of noise (tires, wind,
transmission and differential gear no
ROBERT via EV wrote:
Maybe it is time we all get a beer, sit back, cool off, relax, and
take a break.
That's fine. But, we should also expect stormy weather, and start
thinking about how we are going to prepare for it!
As to the death of EVs, I do not think it will happen because of the
fol
tomw wrote -
As for crushing cars, that's nonsense.
As David says, there are lots of ways to "crush" EVs besides literally
putting them in a car crusher. For instance...
- Auto companies cancel their EV leases, demand cars be returned, and
destroy them.
- Change environmental regulations t
“Fasten your seatbelts. It's going to be a bumpy night.” (Bette Davis,
in "All about Eve")
MANY imponderables are at work here. The major actors are used to
playing their parts according to their party's script. They don't have
to think; just act.
When Bush took office in 2000, he could coun
I apologize for not following this thread diligently, so I'm probably
missing a few things. Cor and Roger are doing a fine job, and I agree
with their responses. I do have a couple of (hair-splitting) comments to
add, though.
ROBERT via EV wrote:
Roger, let me try to clarify my concern...I ta
ROBERT via EV wrote:
An EVSE requires an AC cable and data cable. An intelligent outlet
would still require the same two cables. In addition, a specialty
intelligent outlet would cost $100 - $200 (guesstimate).
Not really. An intelligent outlet could do the same, and use RF, or
carrier current
Michael Ross via EV wrote:
There plenty of ways to design a battery that may explode. Samsung
apparently did one. Could be a short develops for some reason.
Indeed there are! Problems can occur in the battery itself, or the
connections to it, or the charger, or even in the load that is
connec
Mike Brown via EV wrote:
I am looking for a manual for a Russco SC-18-120 or SC-18-120 SO
charger. Photocopy would be fine. I would be happy to pay postage &
copying, or even the loan of a manual that I could copy myself and
return. Please respond off list if you can help.
What do you need to k
paul dove via EV wrote:
Michigan denies Tesla request for dealership license...
What I don't get is why Tesla doesn't just set up dealers like the other
car companies have done. If they're concerned about price gouging or
other sneaky dealer sales tactics, they could dictate terms and prices,
ev@lists.evdl.org said:
I know it would be more inconvenient but why doesn't every EV have
their own J1772 extension cord and the EVSE just have a socket like
on the vehicle? This way no cord is left at the charge station and
every car can lock the cord to the car.
It could also be done by hav
Jan Steinman via EV wrote:
From: Cor van de Water via EV
Every time the cell is at the top of charge, it will expand.
Contrary to the Subject: (which implies lead-acid), this discussion appears to
be about lithium batteries.
Does anyone know if the same holds true for flooded-cell NiCd? I wa
John Lussmyer via EV wrote:
The cheapest 36V forklift battery I've found is a refurb, 1yr warranty, 510AH
for $2000.
That is FAR more battery than I really need.
Ouch. I've seen complete working pallet-jacks with battery go for $500
at factory closing auctions.
As for the 12V unit, a pair
jerry freedomev via EV wrote:
> Sounds like a job for bb600 nicads...
John Lussmyer wrote:
> So, I assume you have some to sell?
jerry freedomev via EV wrote:
I do have some , 96vdc worth but wasn't thinking of selling them...
Since they last forever, make big amps and don't die from sitting,
f
John Lussmyer via EV wrote:
I have a couple of old electric forklifts that I use occaisionally in my shop.
One is a little walk behind unit that uses 2, 6V golf cart batteres.
The other is a full size forklift that has a 36V, 750AH battery.
I need to replace these batteries. I don't like Lead-ac
via EV wrote:
On the efficiency side of things, roads already flex when vehicles drive over
them. Why not harvest that lost energy?
Heat is the "bullshit" detector of such claims. If any significant
amount of energy was being produced by flexing roads, it would show up
as a temperature rise.
Peri Hartman via EV wrote:
Thanks for your detailed answer, Cor. I can't really justify increasing
from 24kwh to 30, so it's unlikely I'll pursue that. 200kwh would make a
substantial difference, though. I could get rid of my other vehicle.
We'll just have to see what happens over the next couple
Cor van de Water via EV wrote:
I believe that Lee responded to a similar question a while back that
there are some breakers, where a circuit is connected to the load
side of the breaker so if it trips then it is no longer powered but
put it in reverse and it remains powered and might overload. I
ken via EV wrote:
>> I have a Bike E with 20" back wheel. Where can I find a reasonably
>> priced wheel that's designed to be efficent for that RPM / 20- 25 mph
>> and 36 volts.
Michael Ross via EV wrote:
Better check me, I get 335 RPM at 20mph and 419 RPM at 25 mph
36 volts will get you less to
paul dove via EV wrote:
Why would you say that? Li FePO4 has one of the largest cycle life of any of
them.?2000+ cycles. The Mitsubishi i-MiEV uses LiFePO4 cells. Maybe go with a
larger Ah capacity to increase current limits. They only do 3C continuous. So
that would be 180 Amps for a 60Ah ce
Lawrence Rhodes via EV wrote:
It's a matter of money.
You can be pretty tricky to build it on a budget. Dave Cloud, Cedric
Lynch, and Jerry Dycus have all built examples of very efficient
vehicles on tiny budgets. They may look a bit funky, but it's a
prototype! :-)
I am thinking of using
Russ Sciville via EV wrote:
>> Surely no-one would wish a Rapid to operate at 240v 1 ph?
Most assuredly, someone will! The same guy that wants and can afford a
top-of-the-line luxury EV is going to want a top-of-the-line luxury fast
charger.
If he's in the USA, he won't have 3-phase power in
PG&E´s proposal would require all EV charger hosts to charge their
customers based on prescribed time-of-use rates ...
EVDL Administrator via EV wrote:
I think I see what PGE are doing, but why should they get to stipulate what
the CUSTOMER pays?
Because they can? Or at least, they can try?
Cor van de Water via EV wrote:
There may be reasons to have a large balancing current, but they escape
me.
1. To deal with cheap old mismatched cells.
2. To allow you to replace one cell without replacing the whole pack.
The new cell is likely to be significantly different than the rest.
3
jeff via EV wrote:
I've used 100s, or 1000s of lead acid 12V batteries. Most were bought new in
lots of from one to 90. I learned early on to test each one. It is almost a
certainty some will be bad. Typical fallout for me was on the order of 5 to
15%. Return that puppy.
That's good advice -
Al Lumas via EV wrote:
The six Deka 8G31 Group 31 GEL cell batteries in my 2005 GEM e825
Utility NEV lasted eight years.
And then, the best deal on six new ones was from a solar system
component distributor here in the south SF Bay area.
These Deka 8G31 gels are very good EV batteries, but only
len moskowitz via EV wrote:
I have an old '90 VW Jetta EV conversion. Last time I changed the
lead-acid batteries I put in ten 29-series marine batteries (that's
around 12 kWh) that I bought from the local Costco for around $900. They
lasted less than three years and gave me 25 - 35 miles per ch
EVDL Administrator via EV wrote:
The article is promoting a battery charger that attempts to measures lead
battery capacity and (he says) then suggests how the battery might still be
used. It's actually an advertisement for the Jameco kit based on his idea.
The link to the jameco page worked,
tomw via EV wrote:
Can you purchase standard PV panels that will fit inside your vehicle? Take
them out at work with some framing made of PVC or similar that you can
easily slip together and set up, then take them down and put them back in
the car at the end of the day. Could make some clips so t
EVDL Administrator via EV wrote:
You west coast folks with EVs everywhere may not know what it's like here in
the midwest. Around here, owning ANY kind of EV is unusual and draws notice.
Here in NE Ohio, I may see a Leaf a few times a YEAR. I have yet to see a
Tesla on the road or in a parking l
Robert Bruninga via EV wrote:
1) Since my EV conversion... runs on 120 VDC, I painted the hood
white on the bottom and mounted two 60W equivalent LED bulbs on it.
Now when the hood is up, there plenty of light...
2) And then since the 5000W theater lights worked so well as a nice
dummy load, and
EVDL Administrator via EV wrote:
I thought that most good valve regulated batteries had recombination
catalysts inside the cells, to recombining evolved hydrogen and oxygen into
water. No?
Yes, they can *slowly* recombine the hydrogen and oxygen inside back
into water. There is some low curre
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