National Grid are coming in a few months to move my incoming supply, I think they will just move the existing meter and 80 amp fuse. Its costing £1300 !

While they are at it would it be an idea to ask for a larger fuse,t hinking ahead to days of electric car recharging etc? House has 8 bedrooms.

George

On 09/03/2023 14:18, George Miles (dicegeorge) wrote:
> National Grid are coming in a few months to move my incoming supply, I think they will just move the existing meter and 80 amp fuse. Its costing £1300 !
>
> While they are at it would it be an idea to ask for a larger fuse,t hinking ahead to days of electric car recharging etc? House has 8 bedrooms.
>
> George

I'd ask for a 3 phase supply as a single phase 100A supply will not
supply two EV's, electric shower, heat pump, immersion cylinder,
electric cooker etc for a fully populated 8 bedroom house?

my own electricity board offers a free upgrade from 60A to 80A. Its also
free to go to 100A provided that the drop cable to the house can support
100A loads.

S.

SH <i.love@spam.me> wrote:
> On 09/03/2023 14:18, George Miles (dicegeorge) wrote:
> I'd ask for a 3 phase supply as a single phase 100A supply will not
> supply two EV's, electric shower, heat pump, immersion cylinder,
> electric cooker etc for a fully populated 8 bedroom house?

You don't *need* three phase for those - because some like EVs can throttle
down their consumption when something else (eg electric shower) is calling
for it. But it wouldn't hurt to have it. It is worth asking what the
difference in price is. However if they're just moving the meter then three
phase might mean installing a new cable from the DNO's network, which could
be a lot more expensive, depending on how much extra groundworks are
required.

> my own electricity board offers a free upgrade from 60A to 80A. Its also
> free to go to 100A provided that the drop cable to the house can support
> 100A loads.

Check your meter tails are up to scratch (25mm2 not 16mm2), but yes UKPN did
me a 60A to 100A upgrade for free. I got the tails upgraded for free when
switching to a smart meter.

Theo

On 09/03/2023 14:50, Theo wrote:
> SH <i.love@spam.me> wrote:
>> On 09/03/2023 14:18, George Miles (dicegeorge) wrote:
>> I'd ask for a 3 phase supply as a single phase 100A supply will not
>> supply two EV's, electric shower, heat pump, immersion cylinder,
>> electric cooker etc for a fully populated 8 bedroom house?
>
> You don't *need* three phase for those - because some like EVs can throttle
> down their consumption when something else (eg electric shower) is calling
> for it. But it wouldn't hurt to have it. It is worth asking what the
> difference in price is. However if they're just moving the meter then three
> phase might mean installing a new cable from the DNO's network, which could
> be a lot more expensive, depending on how much extra groundworks are
> required.
>
>> my own electricity board offers a free upgrade from 60A to 80A. Its also
>> free to go to 100A provided that the drop cable to the house can support
>> 100A loads.
>
> Check your meter tails are up to scratch (25mm2 not 16mm2), but yes UKPN did
> me a 60A to 100A upgrade for free. I got the tails upgraded for free when
> switching to a smart meter.
>
> Theo

when my consumer unit was replaced, I asked for 25mm2 tails right back
to the switchfuse and a 100A rated consumer unit so already sorted on
that front.

I am still on a 60A fuse and when I enquired about an upgrade to 100A
they said it was free and then got back to me with oh, we can only go up
to 80A without replacing the drop cable from the road to the cut out.

My split concentric cable apparently goes to next door's meter cupboard
and the house on the other side is also fed back to that neighbours
meter cupboard. Apparently when the estate was built, they put in 3
phase to the house next door, gave that house one phase, the 2nd phase
was cabled to my house and the 3rd phase was cabled to the house on the
other side of my neighbours....

So to replace also means replacing the 3 phase cable from her meter
cabinet back to the road as well as my own drop cable!

S.

On 09/03/2023 14:18, George Miles (dicegeorge) wrote:
> National Grid are coming in a few months to move my incoming supply, I think they will just move the existing meter and 80 amp fuse. Its costing £1300 !
>
> While they are at it would it be an idea to ask for a larger fuse,t hinking ahead to days of electric car recharging etc? House has 8 bedrooms.
>
> George

Consider an isolation switch as well if you haven't got one.

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

On 09/03/2023 14:50, Theo wrote:

> Check your meter tails are up to scratch (25mm2 not 16mm2), but yes UKPN did
> me a 60A to 100A upgrade for free. I got the tails upgraded for free when
> switching to a smart meter.

+1
Tails upgraded and an isolation switch fitted for free with a smart
meter install. The fitter was very accommodating rather than a jobs
worth. I had requested a isolation switch on booking the appointment for
the meter change but he didn't have this information on his job sheet.
He just said - no problem I have one in the van. When fitting the
isolation switch he just said he would upgrade the tails as well.

Tails upgraded to meter and from meter to the input side of the
isolation switch. Currently I don't know what size of supply fuse he
installed and sealed- the carrier just says 60A/80A.

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

On 09/03/2023 14:28, SH wrote:
> On 09/03/2023 14:18, George Miles (dicegeorge) wrote:
>> National Grid are coming in a few months to move my incoming supply, I
>> think they will just move the existing meter and 80 amp fuse. Its
>> costing £1300 !
>>
>> While they are at it would it be an idea to ask for a larger fuse,t
>> hinking ahead to days of electric car recharging etc? House has 8
>> bedrooms.
>>
>> George
>
>
> I'd ask for a 3 phase supply as a single phase 100A supply will not
> supply two EV's, electric shower, heat pump, immersion cylinder,
> electric cooker etc for a fully populated 8 bedroom house?
>
> my own electricity board offers a free upgrade from 60A to 80A. Its also
> free to go to 100A provided that the drop cable to the house can support
> 100A loads.
>
> S.

Mine was upgraded for free from 60 amps to 80, but they said that the
incoming cable wouldn't support 100 amps.

3-phase would enable charging at 22kW rather than 7.6 but would be
pretty expensive to install and may also attract a higher standing charge.
--
Cheers,
Roger

alan_m <junk@admac.myzen.co.uk> wrote:
> +1
> Tails upgraded and an isolation switch fitted for free with a smart
> meter install. The fitter was very accommodating rather than a jobs
> worth. I had requested a isolation switch on booking the appointment for
> the meter change but he didn't have this information on his job sheet.
> He just said - no problem I have one in the van. When fitting the
> isolation switch he just said he would upgrade the tails as well.
>
> Tails upgraded to meter and from meter to the input side of the
> isolation switch. Currently I don't know what size of supply fuse he
> installed and sealed- the carrier just says 60A/80A.

I don't think the meter installer is allowed to change your supply fuse but,
now you have the tails upgraded, you can ask your DNO to upgrade you to
100A. On mine they ended up changing the whole service head as it was so
old (1960s bakelite BICC), and the new one has a label saying 100A supply
fuse fitted.

Theo

On 09/03/2023 14:18, George Miles (dicegeorge) wrote:
> National Grid are coming in a few months to move my incoming supply, I think they will just move the existing meter and 80 amp fuse. Its costing £1300 !
>
> While they are at it would it be an idea to ask for a larger fuse,t hinking ahead to days of electric car recharging etc? House has 8 bedrooms.
>

I have read the other replies.

3 phase is not an option as you have not chosen or paid for it on your
installation/cut out move.

However in my area it up to you to install your own 25mm tails from the
consumer unit to the meter or isolation switch or the supplier will not
upgrade the fuse. Assuming you have 16mm tails and they can upgrade to
100A with you supply cable.

If you want/need a REC2 isolator to upgrade the tails to your CU )yes
many of them) email me and I'll send you one.

I'll also send a couple of meter seals with it.

Adam

Roger Mills <mills37.fslife@gmail.com> wrote:
> Mine was upgraded for free from 60 amps to 80, but they said that the
> incoming cable wouldn't support 100 amps.
>
> 3-phase would enable charging at 22kW rather than 7.6 but would be
> pretty expensive to install and may also attract a higher standing charge.

Few EVs have three phase AC charging, so the most you get is single phase
7kW. I think the Zoe is an exception, possibly some other Renault/Nissans.
But having three phase is handy if you might have multiple EVs in future.

Theo

On 09/03/2023 19:49, Theo wrote:
> Roger Mills <mills37.fslife@gmail.com> wrote:
>> Mine was upgraded for free from 60 amps to 80, but they said that the
>> incoming cable wouldn't support 100 amps.
>>
>> 3-phase would enable charging at 22kW rather than 7.6 but would be
>> pretty expensive to install and may also attract a higher standing charge.
>
> Few EVs have three phase AC charging, so the most you get is single phase
> 7kW. I think the Zoe is an exception, possibly some other Renault/Nissans.
> But having three phase is handy if you might have multiple EVs in future.
>
> Theo

My VW ID.3 can charge at 22kW from a 3-phase supply (not that I've got a
3-phase supply!) or much higher still (100kW I think) from DC.
--
Cheers,
Roger

On 09/03/2023 18:20, Theo wrote:
> alan_m <junk@admac.myzen.co.uk> wrote:
>> +1
>> Tails upgraded and an isolation switch fitted for free with a smart
>> meter install. The fitter was very accommodating rather than a jobs
>> worth. I had requested a isolation switch on booking the appointment for
>> the meter change but he didn't have this information on his job sheet.
>> He just said - no problem I have one in the van. When fitting the
>> isolation switch he just said he would upgrade the tails as well.
>>
>> Tails upgraded to meter and from meter to the input side of the
>> isolation switch. Currently I don't know what size of supply fuse he
>> installed and sealed- the carrier just says 60A/80A.
>
> I don't think the meter installer is allowed to change your supply fuse but,
> now you have the tails upgraded, you can ask your DNO to upgrade you to
> 100A. On mine they ended up changing the whole service head as it was so
> old (1960s bakelite BICC), and the new one has a label saying 100A supply
> fuse fitted.

Yes, mine ended up with a complete change. The old one was cast-iron
(which they simply smashed to pieces with a lump-hammer, while wearing
rubber gloves. The replacement was fitted, along with a 100A fuse. All
free of charge - I hadn't even asked ... the meter reader had spotted
the new CU and said he'd get the main fuse uprated.

On 09/03/2023 21:05, Roger Mills wrote:
> On 09/03/2023 19:49, Theo wrote:
>> Roger Mills <mills37.fslife@gmail.com> wrote:
>>> Mine was upgraded for free from 60 amps to 80, but they said that the
>>> incoming cable wouldn't support 100 amps.
>>>
>>> 3-phase would enable charging at 22kW rather than 7.6 but would be
>>> pretty expensive to install and may also attract a higher standing
>>> charge.
>>
>> Few EVs have three phase AC charging, so the most you get is single phase
>> 7kW.  I think the Zoe is an exception, possibly some other
>> Renault/Nissans.
>> But having three phase is handy if you might have multiple EVs in future.
>>
>> Theo
>
> My VW ID.3 can charge at 22kW from a 3-phase supply (not that I've got a
> 3-phase supply!) or much higher still (100kW I think) from DC.

The MG 4 can charge at 7.2 kW single phase, but only 11 kW three-phase -
so hardly worth the hassle and cost.

In article <tudl1n$1kd7k$2@dont-email.me>, SteveW
<steve@walker-family.me.uk> wrote:
> On 09/03/2023 21:05, Roger Mills wrote:
> > On 09/03/2023 19:49, Theo wrote:
> >> Roger Mills <mills37.fslife@gmail.com> wrote:
> >>> Mine was upgraded for free from 60 amps to 80, but they said that the
> >>> incoming cable wouldn't support 100 amps.
> >>>
> >>> 3-phase would enable charging at 22kW rather than 7.6 but would be
> >>> pretty expensive to install and may also attract a higher standing
> >>> charge.
> >>
> >> Few EVs have three phase AC charging, so the most you get is single
> >> phase 7kW. I think the Zoe is an exception, possibly some other
> >> Renault/Nissans. But having three phase is handy if you might have
> >> multiple EVs in future.
> >>
> >> Theo
> >
> > My VW ID.3 can charge at 22kW from a 3-phase supply (not that I've got
> > a 3-phase supply!) or much higher still (100kW I think) from DC.

> The MG 4 can charge at 7.2 kW single phase, but only 11 kW three-phase -
> so hardly worth the hassle and cost.

I can afford the time taken to charge when my Enyaq is at home. It
charging on a journey that needs to be quick. Once I've had my coffee,
I'm ready to set off again.
I've only got a 60A main fuse, My charging point has a CT on the input to
the main CU and reduces the charge to the car if there's a significant
load elsewhere - like the oven.

--
from KT24 in Surrey, England - sent from my RISC OS 4té
"I'd rather die of exhaustion than die of boredom" Thomas Carlyle

Theo wrote:

> I don't think the meter installer is allowed to change your supply fuse

When my smartmeters were fitted, e.on upgraded my fuse from 60A to 80A,
even though Central Networks was no longer owned by e.on by that time.

Not much of an increase, but it may well be more than the actual wires can
do safely.
It sounds rather expensive for a meter move, is the wire gold plated?
Brian

--

--:
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...
briang1@blueyonder.co.uk
Blind user, so no pictures please
Note this Signature is meaningless.!
"George Miles (dicegeorge)" <dicegeorge@gmail.com> wrote in message
news:8d2d4294-a840-4f40-9f44-9f2555f6dcafn@googlegroups.com...
National Grid are coming in a few months to move my incoming supply, I think
they will just move the existing meter and 80 amp fuse. Its costing �1300 !

While they are at it would it be an idea to ask for a larger fuse,t hinking
ahead to days of electric car recharging etc? House has 8 bedrooms.

George

On 10/03/2023 11:52, Andy Burns wrote:
> Theo wrote:
>
>> I don't think the meter installer is allowed to change your supply fuse
>
> When my smartmeters were fitted, e.on upgraded my fuse from 60A to
> 80A, even though Central Networks was no longer owned by e.on by that
> time.

That's interesting. When I had our supply converted from overhead to
underground, at the same time as having a Smart meter, at the same time
as having a new CU in another part of the house, it was a case of the
DNO coming in the morning for the cable move, the energy supplier coming
to fit the smart meter (and take away the old one from the old position)
at lunchtime, then my sparkie coming in the afternoon to connect up the
new CU.

(I had to organise all the appointments myself, the DNO and Energy Co
refused to talk to each other, despite having the same parent company).

Anyway, it all happened. The DNO boys installed the 100A fuse, the
energy man (who was a proper engineer, and not a normal smart meter
installer) installed the meter, and a 100A double pole isolation switch.
My sparkie connected the CU tails to the switch.

On 09/03/2023 22:15, charles wrote:
> In article <tudl1n$1kd7k$2@dont-email.me>, SteveW
> <steve@walker-family.me.uk> wrote:
>> On 09/03/2023 21:05, Roger Mills wrote:
>>> On 09/03/2023 19:49, Theo wrote:
>>>> Roger Mills <mills37.fslife@gmail.com> wrote:
>>>>> Mine was upgraded for free from 60 amps to 80, but they said that the
>>>>> incoming cable wouldn't support 100 amps.
>>>>>
>>>>> 3-phase would enable charging at 22kW rather than 7.6 but would be
>>>>> pretty expensive to install and may also attract a higher standing
>>>>> charge.
>>>>
>>>> Few EVs have three phase AC charging, so the most you get is single
>>>> phase 7kW. I think the Zoe is an exception, possibly some other
>>>> Renault/Nissans. But having three phase is handy if you might have
>>>> multiple EVs in future.
>>>>
>>>> Theo
>>>
>>> My VW ID.3 can charge at 22kW from a 3-phase supply (not that I've got
>>> a 3-phase supply!) or much higher still (100kW I think) from DC.
>
>> The MG 4 can charge at 7.2 kW single phase, but only 11 kW three-phase -
>> so hardly worth the hassle and cost.
>
> I can afford the time taken to charge when my Enyaq is at home. It
> charging on a journey that needs to be quick. Once I've had my coffee,
> I'm ready to set off again.

Indeed, but some of the larger batteries are pushing the boundaries of
recharging at home overnight on a 7kW charger, so for the edge case of
being almost out of charge and wanting a full charge for a journey the
next day to avoid charging while out, 7kW may not be enough.

It certainly may not be enough for charging on an EV tariff giving only
4 hours of cheaper rate electricity per night.

We are just due an electric car. 7kW will do us as any sudden, lengthy
journeys, without time to re-charge first, will just mean using the
other (petrol car). The EV should nicely cover almost all our journeys
with home charging only.

On 10/03/2023 15:23, SteveW wrote:

> Indeed, but some of the larger batteries are pushing the boundaries of
> recharging at home overnight on a 7kW charger, so for the edge case of
> being almost out of charge and wanting a full charge for a journey the
> next day to avoid charging while out, 7kW may not be enough.
>

Are you really going to be doing 100 to 200 miles every day requiring a
full charge overnight or would you just be doing a daily top-up charge?

Question. The manufacturer of my phone recommends only charging to 85%
to lengthen the life of the battery. The phone has an option to stop
charging at 85% capacity. The manufacturer of my laptop recommends only
charging to 70% to optimise the life of the battery, and again there is
an option to select this mode. What is the maximum charge point for an
EV battery for the optimum life of the battery?

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

They can charge what they like because you cannot shop
around to get it done more cheaply, so they do.

probably would have been a fraction of that price if
they were still nationalised, but then you might have had
to wait for 6 years for them to do it.

Andrew

On 10/03/2023 12:06, Brian Gaff wrote:
> Not much of an increase, but it may well be more than the actual wires can
> do safely.
> It sounds rather expensive for a meter move, is the wire gold plated?
> Brian
>

In article <k718htFgprU1@mid.individual.net>,
alan_m <junk@admac.myzen.co.uk> wrote:
> On 10/03/2023 15:23, SteveW wrote:

> > Indeed, but some of the larger batteries are pushing the boundaries of
> > recharging at home overnight on a 7kW charger, so for the edge case of
> > being almost out of charge and wanting a full charge for a journey the
> > next day to avoid charging while out, 7kW may not be enough.
> >

> Are you really going to be doing 100 to 200 miles every day requiring a
> full charge overnight or would you just be doing a daily top-up charge?

> Question. The manufacturer of my phone recommends only charging to 85%
> to lengthen the life of the battery. The phone has an option to stop
> charging at 85% capacity. The manufacturer of my laptop recommends only
> charging to 70% to optimise the life of the battery, and again there is
> an option to select this mode. What is the maximum charge point for an
> EV battery for the optimum life of the battery?

For my car, 80% is recommended for normal use. When I have a long journey,
I use 100% - that's been 5 times in the 18 months since I bought the car. I
noticed the other week, that the 80% to 100% is done much more slowly -
presumably to keep the heat down.

--
from KT24 in Surrey, England - sent from my RISC OS 4té
"I'd rather die of exhaustion than die of boredom" Thomas Carlyle

On 10/03/2023 17:43, alan_m wrote:
> On 10/03/2023 15:23, SteveW wrote:
>
>> Indeed, but some of the larger batteries are pushing the boundaries of
>> recharging at home overnight on a 7kW charger, so for the edge case of
>> being almost out of charge and wanting a full charge for a journey the
>> next day to avoid charging while out, 7kW may not be enough.
>>
>
> Are you really going to be doing 100 to 200 miles every day requiring a
> full charge overnight or would you just be doing a daily top-up charge?

I could be - I live in Manchester, my sister lives in Carlisle. She
currently has cancer and is undergoing chemo. It is quite possible that
I may go there and back two days on the run. Even without the cancer, it
is possible that I go there to do some DIY for her, then go back the
next day with extra items/tools that I have found I need.

> Question.  The manufacturer of my phone recommends only charging to 85%
> to lengthen the life of the battery. The phone has an option to stop
> charging at 85% capacity.  The manufacturer of my laptop recommends only
> charging to 70% to optimise the life of the battery, and again there is
> an option to select this mode.  What is the maximum charge point for an
> EV battery for the optimum life of the battery?

They typically seem to recommend 80% from what I have seen, with 100%
possible for longer journeys. I think that recommendation is for
high-speed DC charging though and at least partly to free up the
charger, as the last 20% will charge much more slowly.

On 10/03/2023 20:24, SteveW wrote:
> On 10/03/2023 17:43, alan_m wrote:
>> On 10/03/2023 15:23, SteveW wrote:
>>
>>> Indeed, but some of the larger batteries are pushing the boundaries
>>> of recharging at home overnight on a 7kW charger, so for the edge
>>> case of being almost out of charge and wanting a full charge for a
>>> journey the next day to avoid charging while out, 7kW may not be enough.
>>>
>>
>> Are you really going to be doing 100 to 200 miles every day requiring
>> a full charge overnight or would you just be doing a daily top-up charge?
>
> I could be - I live in Manchester, my sister lives in Carlisle. She
> currently has cancer and is undergoing chemo. It is quite possible that
> I may go there and back two days on the run. Even without the cancer, it
> is possible that I go there to do some DIY for her, then go back the
> next day with extra items/tools that I have found I need.
>
>> Question.  The manufacturer of my phone recommends only charging to
>> 85% to lengthen the life of the battery. The phone has an option to
>> stop charging at 85% capacity.  The manufacturer of my laptop
>> recommends only charging to 70% to optimise the life of the battery,
>> and again there is an option to select this mode.  What is the maximum
>> charge point for an EV battery for the optimum life of the battery?
>
> They typically seem to recommend 80% from what I have seen, with 100%
> possible for longer journeys. I think that recommendation is for
> high-speed DC charging though and at least partly to free up the
> charger, as the last 20% will charge much more slowly.
>
The recommendation is also for lower speed (domestic) charging.
Apparently (allegedly?) the battery life is longer if you limit it to
80% most of the time.
--
Cheers,
Roger

Roger Mills <mills37.fslife@gmail.com> wrote:
> On 10/03/2023 20:24, SteveW wrote:
>> On 10/03/2023 17:43, alan_m wrote:
>>> On 10/03/2023 15:23, SteveW wrote:
>>>
>>>> Indeed, but some of the larger batteries are pushing the boundaries
>>>> of recharging at home overnight on a 7kW charger, so for the edge
>>>> case of being almost out of charge and wanting a full charge for a
>>>> journey the next day to avoid charging while out, 7kW may not be enough.
>>>>
>>>
>>> Are you really going to be doing 100 to 200 miles every day requiring
>>> a full charge overnight or would you just be doing a daily top-up charge?
>>
>> I could be - I live in Manchester, my sister lives in Carlisle. She
>> currently has cancer and is undergoing chemo. It is quite possible that
>> I may go there and back two days on the run. Even without the cancer, it
>> is possible that I go there to do some DIY for her, then go back the
>> next day with extra items/tools that I have found I need.
>>
>>> Question.  The manufacturer of my phone recommends only charging to
>>> 85% to lengthen the life of the battery. The phone has an option to
>>> stop charging at 85% capacity.  The manufacturer of my laptop
>>> recommends only charging to 70% to optimise the life of the battery,
>>> and again there is an option to select this mode.  What is the maximum
>>> charge point for an EV battery for the optimum life of the battery?
>>
>> They typically seem to recommend 80% from what I have seen, with 100%
>> possible for longer journeys. I think that recommendation is for
>> high-speed DC charging though and at least partly to free up the
>> charger, as the last 20% will charge much more slowly.
>>
> The recommendation is also for lower speed (domestic) charging.
> Apparently (allegedly?) the battery life is longer if you limit it to
> 80% most of the time.

That’s 80% battery charge, not a speed of charging. Not saying that high
speed charging isn’t worse for you battery but the recommendations for home
AC charging are based of charge level rather than speed.

Tim

--
Please don't feed the trolls

Tim+ <tim.downie@gmail.com> wrote:
> Roger Mills <mills37.fslife@gmail.com> wrote:
>> On 10/03/2023 20:24, SteveW wrote:
>>> On 10/03/2023 17:43, alan_m wrote:
>>>> On 10/03/2023 15:23, SteveW wrote:
>>>>
>>>>> Indeed, but some of the larger batteries are pushing the boundaries
>>>>> of recharging at home overnight on a 7kW charger, so for the edge
>>>>> case of being almost out of charge and wanting a full charge for a
>>>>> journey the next day to avoid charging while out, 7kW may not be enough.
>>>>>
>>>>
>>>> Are you really going to be doing 100 to 200 miles every day requiring
>>>> a full charge overnight or would you just be doing a daily top-up charge?
>>>
>>> I could be - I live in Manchester, my sister lives in Carlisle. She
>>> currently has cancer and is undergoing chemo. It is quite possible that
>>> I may go there and back two days on the run. Even without the cancer, it
>>> is possible that I go there to do some DIY for her, then go back the
>>> next day with extra items/tools that I have found I need.
>>>
>>>> Question.  The manufacturer of my phone recommends only charging to
>>>> 85% to lengthen the life of the battery. The phone has an option to
>>>> stop charging at 85% capacity.  The manufacturer of my laptop
>>>> recommends only charging to 70% to optimise the life of the battery,
>>>> and again there is an option to select this mode.  What is the maximum
>>>> charge point for an EV battery for the optimum life of the battery?
>>>
>>> They typically seem to recommend 80% from what I have seen, with 100%
>>> possible for longer journeys. I think that recommendation is for
>>> high-speed DC charging though and at least partly to free up the
>>> charger, as the last 20% will charge much more slowly.
>>>
>> The recommendation is also for lower speed (domestic) charging.
>> Apparently (allegedly?) the battery life is longer if you limit it to
>> 80% most of the time.
>
> That’s 80% battery charge, not a speed of charging. Not saying that high
> speed charging isn’t worse for you battery but the recommendations for home
> AC charging are based of charge level rather than speed.
>
> Tim
>

Just rereading, I see we’re probably in agreement. Feel free to ignore my
post. ;-)

Tim

--
Please don't feed the trolls