EV Battery fast chargeing

Bob Harvey

Well-known Member
I will admit I know little about EV's, BUT, I just read an article about some company that is developing a new rapid charge system. What I would like to know is ; Will such a system reduce the life of those very expensive batteries ? Thanks
 
There are three EV issues one is range, another is charge time, the third is cost.
Charging is a real limiting factor in that the rate of charge is fixed by heat dissipation. charging produces waste heat and that limits the rate of charge to the thermal stability of the system. Battery technology has a long way to go. Jim
 
I read in China they exchange batteries instead of spending time to charge in about the time it takes to gas up.

I think that may solve many issues.

Some factories exchange battery packs on their forklifts.
 
The only thing I've seen on it Bob, and I read it on the internet, so take it for where it came from, but it was said that a charger for a 45 minute quick charge requires 440 three phase. I did a search for ''buy EV charger'', everything I found was 220 single phase and charged from 30 to 45 miles per hour of charge. Prices varied. There are two kinds, hard wired and ones that plug in to a 220 outlet like an arc welder, electric stove or clothes dryer. Prices ranged from $199 for a plug in type, to $989 for a hard wired 45 miles per hour single car charger. If you want the best two car hard wired 45 mph charger, you can drop $1600.
 
I don't think that would work very well. It's sorta like gas cylinders. You buy a new one and when it's empty you trade it in for another. The cylinders are dated and you might turn one in that's a month old and get one that's going out of date in a month. Sooner or later someone's gonna have to eat the cost of the cylinder. I don't think most people will take the chance of losing 20 grand on a battery.
 

Fast charging will diminish battery life if taken above specific levels , these vary depending on manufacturer.
The purpose of the fast charger is to add a limited range quickly to get the vehicle moving again . As with conventional batteries , slow and steady is best .
 
> I read in China they exchange batteries instead of spending time to charge in about the time it takes to gas up.

I dunno about China, but I recall Tesla was considering doing this on I-5 between LA and San Francisco. I don't think it was ever implemented; improvements in charging technology made it unnecessary.
 
Charles, if I was to buy an EV, would I be better off buying a 30 mile an hour charger instead of 45, or at those
levels, wouldn't it make any noticeable difference in battery life?
 
Some time ago I saw a story about another country had a system where the government owned the batteries. All of the cars regardless of make used the same battery which was inserted from under the car. The cars went through what looks like an automatic car wash where the equipment opened a door removing the battery and inserted a charged battery in it's place. You pay a fee for the charge and you are on your way. That way you could travel long distances without having to stop for half a day to charge the battery. Look like a good system to me.
 
(quoted from post at 11:41:25 04/27/23) Charles, if I was to buy an EV, would I be better off buying a 30 mile an hour charger instead of 45, or at those
levels, wouldn't it make any noticeable difference in battery life?

It really depends on the manufactures' battery and recommendation rrlund . There are so many different capacities , battery configurations and types available it's almost impossible to get past the factory jargon and @r$e covering . That said , at lower levels charging at less than 80% of capacity is supposed to prolong Lithium battery life [ Guido might want to say something here ] .
This is one reason I haven't considered an EV myself , just too many ifs , buts and maybes for my liking . This coupled with the almost non-existent infrastructure in Australia doesn't engender much confidence .
To my mind a ' shopping cart ' EV might be a practical alternative , something used for a short work commute or a weekly shopping expedition . For long distances like ours ; it's two and a half hours to my off grid farm with no charging facilities , no EV comes near to the range and reliability of a diesel engine .
When I'm too old for the farm and it's bread and milk I want from the shopping centre I might buy an EV , but I would shed a big fat tear for my Range Rover .
 
The exchange companies must build the cost of replacing old cylinders into their business plan. Back when the valves on propane cylinders were being upgraded there was no problem exchanging a cylinder with the old valve. I don't think any consumer would eat the cost of an older exchange battery, they would just Just exchange it again.
 
Charles, for me the whole thing sounds like a pretty good deal. We're a mile from town. There's a grocery store, Dollar store, hardware, auto parts, hospital, most anything we need on any given day. The county seat is about seven miles away. There are a few more businesses there as well as the library, and my wife is on the library board so she has to go there fairly often. The biggest town in the county is nine miles away with restaurants, Tractor Supply, Wal mart, etc. It's 15 miles to an even larger town with Menards, the AGCO equipment dealer and other chain stores.

We have 200 amp service here on the farm. Just plugging the car in instead of the wife constantly saying she needs gas because of all of her little short runs, sure sounds like a sweet deal to me.
 
Friend has an auto salvage yard he has a lot of EV for salvage,says the batteries seem to last about 100,000 miles on average.Then the new battery will cost as much or more than the car is worth.
 
(quoted from post at 21:10:04 04/26/23) Friend has an auto salvage yard he has a lot of EV for salvage,says the batteries seem to last about 100,000 miles on average.Then the new battery will cost as much or more than the car is worth.

Traditional Farmer,
No, that's not correct. Someone is anti-EV and making stuff up.

Yes, replacement batteries are expensive, but not as much as the cost of the car
 
No. I'm EV certified for a car manufacturer. The charge rates are all calibrated for maximum efficiency and battery life. The charge station doesn't determine the charge rate. It simply provides the electricity. The battery management system controls the rate of charge depending on the condition of the battery, temperature, and other inputs. So rapid charging will not harm the battery. Believe it or not, the manufacturer would not install a system that would be knowingly detrimental to a system they have to provide warranty on.
 
from what I have read, you buy the car and subscribe to the battery service paying a monthly fee. So cost of new batteries is built into the service.
 
(quoted from post at 19:48:22 04/26/23)
(quoted from post at 21:10:04 04/26/23) Friend has an auto salvage yard he has a lot of EV for salvage,says the batteries seem to last about 100,000 miles on average.Then the new battery will cost as much or more than the car is worth.

Traditional Farmer,
No, that's not correct. Someone is anti-EV and making stuff up.

Yes, replacement batteries are expensive, but not as much as the cost of the car

Europe is full of EV cars parked in scrap yards due to the cost of battey replacement.


mvphoto105059.jpg
 
Tree-Farmer Traditional farmer is saying a
replacement battery cost more than an EV
with 100,000 miles on it, not what an EV
cost when it's brand new. So what does
replacement battery cost and what is a
100,000 mile EV worth?
 
So quote replacement prices, tree farmer.

Easily searchable for the Chevy Volt.
List price on the battery is $26K. I have
friends still in gm dealers that have said
their dealers could sell the battery for
about $19K. I guess technically, that's
less than the car was new.
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top