Ha.

cass wrote:

AJGalaxy2012 wrote:

So we can disconnect the refrigerant pipes, disconnect the HV lines, disconnect the communications, take out a lot bolts, drop the battery down, take it away, lift the new battery into place, reconnect everything, regas the refrigerant all in under 5 minutes at a sensible price?

I can see some people who may have a battery that's approaching end of life using such a service, when they next have a good one just keeping that with the car.

I am familiar with FLT's and battery swapping from years ago, nothing the complexity in a FLT battery.

All minor issues with easy solutions, manufacturers already use masses of common components like engines, platforms, electrics etc. so making use of a common battery wont be an issue.
The concept of swapping batteries has many advantages compared to the shambles of the current public charging system.
It avoids the need to force feed batteries quickly and inefficiently with expensive fossil fuel generated power generating unwanted and damaging heat that wastes even more power to cool them.
Batteries will last longer if they're not getting unnecessarily heated up.
Batteries could be charged with surplus renewable power when there is little or no grid demand.
With a reliable means of "filling up" battery sizes could be reduced saving weight and improving efficiency.
A bank of charging batteries helps with the problem of what to do with surplus renewable power when there is little grid demand.
At a practical level, cost wouldn't be an issue, The odd time I've needed to plug into a public charger the price has been ludicrous.
Swapping a battery would be great if your home charging has failed unexpectedly with a power cut, trip swich, some scrote stealing your charging cable etc.
I don't suppose anyone will persue this now that we're on the path that we're on but that article that Archermav linked shows that someone is trying it.

How about you drive onto a forecourt over a covered pit.
A machine pops out the ground and removes the flat battery and sends it off for recharging.
A fully charged battery is then pushed up under the car and away you go.
How simple is that?
Obviously all batteries would have to be a standard size and cars would have to have the same receptacle and all the connections made the same.

Such a system would work along the lines of an automatic carwash - drive through battery replacement! 2012 TDV8 Vogue (L322)

like this,

https://www.arenaev.com/nio_to_begin_rolli...s-1252.php ... - .- -.




Y. O. L. O.
.

kevinp wrote:

How about you drive onto a forecourt over a covered pit.
A machine pops out the ground and removes the flat battery and sends it off for recharging.
A fully charged battery is then pushed up under the car and away you go.
How simple is that?
Obviously all batteries would have to be a standard size and cars would have to have the same receptacle and all the connections made the same.

I don't think there are as many pitfalls as we have with the current system, you can never overestimate the stupidity of the general public, we live in a world where we have people who still manage to drive the wrong way up a motorway and there are thousands of cases of misfuelling every year where there are only 2 choices petrol or diesel. Is it a good idea to let the public within spitting distance of an 800V supply?
Can you picture the fuss when some "genius" blows himself up with 800V going though his home made adapter to speed up the charging on his car.
How many different cables/plugs/adapters/charging rates will we end up with to confuse some old dear who has left her glasses at home?
With 800V available you can be sure that some YouTube dimwit will come up with something stupid to created some "content"
On the plus side there may be some interesting CCTV footage where someone tries to steal an 800V charging cable.
Remove the people/public from the process and you will remove the pitfalls.

It might improve the gene pool.  John
2008 Stornoway Grey 3.6 Tdv8 Vogue
2005 TD6 Java Black Vogue - Written off!!
GAP iiD BT
2003 Discovery TD5 Auto, Nanocom Evolution - gone to a new home!
MasseyFerguson 152 - No electronics!! - Sold

cass wrote:

I don't think there are as many pitfalls as we have with the current system, you can never overestimate the stupidity of the general public, we live in a world where we have people who still manage to drive the wrong way up a motorway and there are thousands of cases of misfuelling every year where there are only 2 choices petrol or diesel. Is it a good idea to let the public within spitting distance of an 800V supply?
Can you picture the fuss when some "genius" blows himself up with 800V going though his home made adapter to speed up the charging on his car.
How many different cables/plugs/adapters/charging rates will we end up with to confuse some old dear who has left her glasses at home?
With 800V available you can be sure that some YouTube dimwit will come up with something stupid to created some "content"
On the plus side there may be some interesting CCTV footage where someone tries to steal an 800V charging cable.
Remove the people/public from the process and you will remove the pitfalls.

stan wrote:

like this,

https://www.arenaev.com/nio_to_begin_rolli...s-1252.php

That's it Stan, my millionaire idea has been nicked already!!

@Weegie:

loved your remark!  “If it ain’t broke, don’t fix it” -where’s the fun in that?

AJGalaxy2012 wrote:

All of the charging equipment is designed to protect the user from their own stupidity, it's just about idiot proof, as always there will be exceptions.
In terms of pitfalls, consider active battery cooling. The battery would need to have some form of self sealing joint to retain the refrigerant. Consider having your battery swapped for another one who's vehicle had a failing AC compressor, the refrigerant lines being contaminated with brass and other metals. This now installed in your car, the refrigerant lines connected and all of you AC system now contaminated. The contamination will cause damage to your compressor and associated equipment. It would spread quicker than COVID amongst the users.
It's a good idea at first thought but then implementing it safely is another issue entirely.

The i3 is definitely actively cooled with refrigerant system and I believe most BMW EV's are too. I dont know about all the others.

It is a great idea, depending of course on the cost and complexity of operation. BMW i3 Electric Car
2012 Full Fat RR 4.4 TDV8 (now gone)
2006 VW Touareg 3.0 TDi V6

I hesitate to 'wake the beast' - this caught my eye, ignore the clickbait headline...
https://www.gbnews.uk/news/electric-car-wa...ope/426156

Quote:

The RAC said the average price of using rapid chargers on a pay as you go basis has increased by nearly 26p per kilowatt hour since May, reaching 70.3p per kWh this month.

This means drivers pay around 20p per mile for their electricity when using the chargers.

By contrast, the per mile cost for a petrol car achieving an economy of 40 miles to the gallon is just 17p

@Pheonix:

Interesting article there, and it’s not BS either. I have an ebike with a 21Ah battery using similar technology, and my range is only around 60% compared to Summer if the temperature drops to or below zero. To get around this, I foolishly keep my batteries stored at 20C in the house , although they are in an old steel ammo box with a pressure valve on a ceramic tiled floor  “If it ain’t broke, don’t fix it” -where’s the fun in that?