45e and don't plug it in

Wardman · 10-20-2020, 04:17 PM

Hello,

Considering this option, but not having a charger installed in the garage. Anyone else not charge when they pull in to the home? We have had Lexus RX's previously and used them this way.

Coming from X5d - like the mpg and also want performance. if MPPK was avail for 4.0, I may just go that way....

Thx

m3_08 · 10-20-2020, 07:35 PM

i'm in your situation waiting to move to the next house where I already installed 240v out let and charger for our cars.
In meantime we use 115v and it's able to charge around 20miles overnight - actually more than enough for my wife daily commute so not a big deal.

mobsync · 10-21-2020, 09:33 AM

With the federal tax credit, to me it would be silly to buy a 40i instead of a 45e. Plus, you get all that extra torque to play with!

moodyhank82 · 10-21-2020, 10:03 AM

Quote:

Originally Posted by Wardman

Hello,

Considering this option, but not having a charger installed in the garage. Anyone else not charge when they pull in to the home? We have had Lexus RX's previously and used them this way.

45e has about 20 times the battery size of the 450h hence the need to charge externally vs 450h's small battery pack quickly charging through regen and combustion engine. You really should charge 45e even if it is just the regular 110v plug otherwise you will get 40i fuel economy at best. Performance wise not charging externally shouldn't make any difference though...

Wardman · 10-21-2020, 06:08 PM

Thx - did not realize there was a 110 option, but actually had a X3e today as a loaner. Overall a different ride than the X5, and so much tech in it I could not figure it all out in a day... :-( I need to check out an 45e and see vs th3 x5M.

aceman · 10-21-2020, 07:20 PM

Wardman,

The 45e comes with a 110v charger, takes appx 12hrs to fully charge (just pointing out its not an option).

Aceman

jad03060 · 10-21-2020, 07:38 PM

Quote:

Originally Posted by aceman

Wardman,

The 45e comes with a 110v charger, takes appx 12hrs to fully charge (just pointing out its not an option).

Aceman

If the battery is nearly flat, it can take longer than that! 10A * 120v = 1200W, and it's not perfectly efficient (like maybe low 90% range). 240vac is more efficient and doubles the power from the P=V*A formula, plus, can handle more amperage than the supplied device up to about 3700W maximum. Now, if you're where you get a 220-240vac unit, it's better, but still limited to I think 10A with the factory supplied unit.

Wardman · 10-22-2020, 10:19 AM

Are you all tracking mpg - the settings in the X3e were complex. I clicked on individual and was getting about 21, but was driving hard just for fun.

X5 45e · 10-22-2020, 02:23 PM

Quote:

Originally Posted by aceman

Wardman,

The 45e comes with a 110v charger, takes appx 12hrs to fully charge (just pointing out its not an option).

Aceman

It takes 10,5 h for a full charge with the normal charger on 220V for me in Europe. On 110V it should be longer even with a reduced HV battery capacity.

Without tax benefit it doesn't make sense to drive a 45e without charging. That said in Europe a big part of the PHEV never charge and are only purchased for the tax benefit. Some still have the charger wrapped in plastic in the trunk.

jad03060 · 10-22-2020, 03:03 PM

Doubling the voltage, doubles the amount of power, so 10.5-hours on 220, is nominally over 20-hours with 120vac. BMW supplies an EVSE suitable for the normal plug-in voltage of the country it's sold in, so in the USA, we get a 120-vac device, which much of the rest of the world gets a 220-240vac one with their local country plug on it. So, in the US, the supplied EVSE probably won't recharge the battery fully overnight unless you don't use much! Throw in the conversion in the vehicle to DCV is less efficient with 120 versus 220-240, that can add some time and actually cost, too.

X5 45e · 10-22-2020, 03:23 PM

Quote:

Originally Posted by jad03060

Doubling the voltage, doubles the amount of power, so 10.5-hours on 220, is nominally over 20-hours with 120vac. BMW supplies an EVSE suitable for the normal plug-in voltage of the country it's sold in, so in the USA, we get a 120-vac device, which much of the rest of the world gets a 220-240vac one with their local country plug on it. So, in the US, the supplied EVSE probably won't recharge the battery fully overnight unless you don't use much! Throw in the conversion in the vehicle to DCV is less efficient with 120 versus 220-240, that can add some time and actually cost, too.

The netto capacity of the HV battery is supposed to be less in the USA. It won't be double time to charge.

Also interesting. The new My BMW app shows how much and how long the car charged.

In this case I had no range left when plugging in (= 5% battery charge). It took +/- 10 hours and total of 23 kWh. The netto capacity in Europe is 21,x kWh. This was on 220V and the normal charger.

jad03060 · 10-22-2020, 03:26 PM

Some of the power is related to the efficiency of the ACV-DCV conversion, some may be for the cooling. The efficiency of that conversion from 120vac is lower than that for 220vac, so that will affect things somewhat, too, as will the ambient temperature conditions and the battery temperature during the charging process.

RocketGoBoom · 10-23-2020, 02:44 PM

You can probably get by with the 110 volt 10 amp charger. It will recharge the car at the rate of about 1 kWh per hour. The battery pack has 17 kWh of usable capacity. So it is easy to tell how much you will get based on the number of hours you are parked there each night. The EV range is about 2 miles per kWh. If you give it 10 hours of recharging time (8 pm till 6 am) then you will add about 20 miles of pure EV range to the X5.

These are all just rough estimates. Everyone is of course going to have difference circumstances. I personally think it is worth installing a level 2 charging unit in your garage. We are going to see more and more EV options in future years. Install something that can recharge at 240 volts and 48 amps. Be future proof.

jad03060 · 10-23-2020, 04:41 PM

What would be ideal is a big solar array with a large battery backup capability, and eventually, that might even support CCS charging rates, but it won't help with the X5. It might when more BEVs are around.

A 48A EVSE would require a dedicated 60A breaker in the USA and probably a fairly significant panel and supply. We haven't gotten to this in most places, but I expect in the future more demand charges...IOW, the more you COULD use, the higher the base rate you might pay. That exists around me for things like water supply, but not so much for electrical or natural gas loads.

10-20-2020, 04:17 PM	#1
Wardman First Lieutenant 90 Rep 398 Posts Drives: F15 X5d Join Date: Sep 2011 Location: Philadelphia iTrader: (0)	45e and don't plug it in Hello, Considering this option, but not having a charger installed in the garage. Anyone else not charge when they pull in to the home? We have had Lexus RX's previously and used them this way. Coming from X5d - like the mpg and also want performance. if MPPK was avail for 4.0, I may just go that way.... Thx
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10-20-2020, 07:35 PM	#2
m3_08 Lieutenant 601 Rep 531 Posts Drives: 2023 M8 conv, IX M60, model Y Join Date: May 2015 Location: ATL iTrader: (0)	i'm in your situation waiting to move to the next house where I already installed 240v out let and charger for our cars. In meantime we use 115v and it's able to charge around 20miles overnight - actually more than enough for my wife daily commute so not a big deal.
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10-21-2020, 09:33 AM	#3
mobsync Lieutenant 228 Rep 512 Posts Drives: '24 X5 50e Join Date: Sep 2019 Location: MS iTrader: (0)	With the federal tax credit, to me it would be silly to buy a 40i instead of a 45e. Plus, you get all that extra torque to play with!
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10-21-2020, 06:08 PM	#5
Wardman First Lieutenant 90 Rep 398 Posts Drives: F15 X5d Join Date: Sep 2011 Location: Philadelphia iTrader: (0)	Thx - did not realize there was a 110 option, but actually had a X3e today as a loaner. Overall a different ride than the X5, and so much tech in it I could not figure it all out in a day... :-( I need to check out an 45e and see vs th3 x5M.
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10-21-2020, 07:20 PM	#6
aceman Second Lieutenant 110 Rep 209 Posts Drives: 2012 BMW 550ix, 2008 Corvette Join Date: Aug 2010 Location: NJ iTrader: (0)	Wardman, The 45e comes with a 110v charger, takes appx 12hrs to fully charge (just pointing out its not an option). Aceman
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10-22-2020, 10:19 AM	#8
Wardman First Lieutenant 90 Rep 398 Posts Drives: F15 X5d Join Date: Sep 2011 Location: Philadelphia iTrader: (0)	Are you all tracking mpg - the settings in the X3e were complex. I clicked on individual and was getting about 21, but was driving hard just for fun.
	Appreciate 0 Quote

10-22-2020, 03:03 PM	#10
jad03060 Major General 3153 Rep 6,789 Posts Drives: X5 45e Join Date: Aug 2018 Location: NH iTrader: (0)	Doubling the voltage, doubles the amount of power, so 10.5-hours on 220, is nominally over 20-hours with 120vac. BMW supplies an EVSE suitable for the normal plug-in voltage of the country it's sold in, so in the USA, we get a 120-vac device, which much of the rest of the world gets a 220-240vac one with their local country plug on it. So, in the US, the supplied EVSE probably won't recharge the battery fully overnight unless you don't use much! Throw in the conversion in the vehicle to DCV is less efficient with 120 versus 220-240, that can add some time and actually cost, too.
	Appreciate 0 Quote

10-22-2020, 03:26 PM	#12
jad03060 Major General 3153 Rep 6,789 Posts Drives: X5 45e Join Date: Aug 2018 Location: NH iTrader: (0)	Some of the power is related to the efficiency of the ACV-DCV conversion, some may be for the cooling. The efficiency of that conversion from 120vac is lower than that for 220vac, so that will affect things somewhat, too, as will the ambient temperature conditions and the battery temperature during the charging process.
	Appreciate 0 Quote

10-23-2020, 02:44 PM	#13
RocketGoBoom Private 98 Rep 50 Posts Drives: BMW X5 xDrive45e Join Date: Sep 2020 Location: Florida iTrader: (0)	You can probably get by with the 110 volt 10 amp charger. It will recharge the car at the rate of about 1 kWh per hour. The battery pack has 17 kWh of usable capacity. So it is easy to tell how much you will get based on the number of hours you are parked there each night. The EV range is about 2 miles per kWh. If you give it 10 hours of recharging time (8 pm till 6 am) then you will add about 20 miles of pure EV range to the X5. These are all just rough estimates. Everyone is of course going to have difference circumstances. I personally think it is worth installing a level 2 charging unit in your garage. We are going to see more and more EV options in future years. Install something that can recharge at 240 volts and 48 amps. Be future proof.
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10-23-2020, 04:41 PM	#14
jad03060 Major General 3153 Rep 6,789 Posts Drives: X5 45e Join Date: Aug 2018 Location: NH iTrader: (0)	What would be ideal is a big solar array with a large battery backup capability, and eventually, that might even support CCS charging rates, but it won't help with the X5. It might when more BEVs are around. A 48A EVSE would require a dedicated 60A breaker in the USA and probably a fairly significant panel and supply. We haven't gotten to this in most places, but I expect in the future more demand charges...IOW, the more you COULD use, the higher the base rate you might pay. That exists around me for things like water supply, but not so much for electrical or natural gas loads.
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