10-24-2021, 04:47 PM | #1 |
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NEMA 14-50 Tesla Level 2 for X5e?
All, Lucky I already have a NEMA 14-50 (50 Amps) wall charger at my garage for Tesla. I also have the Tesla mobile charger cable.
Can I use the same outlet to fast charge my upcoming X5e? If so, can I simply use the X5e provided charging cable with any adapter into NEMA? Any other adapters required or purchased to secure this for X5e? Thanks again for all your help. Last edited by GS2019; 10-24-2021 at 05:59 PM.. |
10-24-2021, 05:12 PM | #2 | |
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10-24-2021, 05:26 PM | #3 |
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The BMW provided is a 110v house hold plug head. So no, the BMW cord won't connect. It's a slow Level 1 charger anyways
Since you said the charger is already plugged in, you just need a Tesla to J1772 adapter head. Tesla connection heads are proprietary design. https://www.amazon.com/gp/aw/d/B07V7...&pd_rd_plhdr=t If the charger is not there, and you're pretty sure a Tesla charger used to be there, you can assume that there's enough amperage (or look at your panel and see if the amp is labeled). If this is a case then you just need to buy a 14-50 EV charger. Again all this is presuming that a Tesla charger is or was there. Don't forget to set your BMW to accept the 16a charging rate...read the manual
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10-24-2021, 05:50 PM | #4 |
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The supplied cable for the US market is a 120vac device (the vehicle itself can accept from about 100-250vac, though)...the plug for the Tesla EVSE is a 240vac device...the BMW product is not a 120-240 switchable, compatible device.
You CAN use a Tesla EVSE to power your X5, but as was mentioned, you'll need to buy a converter adapter to go from the Tesla plug to the one compatible with the X5 (and nearly every other EV out there). Most of those cost in the order of $150 or so. Or, you can take out the Tesla device, and buy a new EVSE to plug into that circuit that will directly plug into your X5. The BMW supplied device will plug into any standard US 15A 120vac socket, but it will be slow compared to using a 240vac device that likely would also offer more current in addition to the higher voltage (power = volts * amps). |
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10-24-2021, 06:32 PM | #5 |
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I just looked at Amazon and found a separate 240V NEMA EV Charger is around $600 (a standalone charger): https://www.amazon.com/LECTRON-Elect...dp/B07HKLCXPJ/ Is this correct one if I need to get a standalone Tesla to J1772 adapter?
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10-24-2021, 06:35 PM | #6 | |
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Also from where I plan to park the X5e (other side of the garage from the existing NEMA, I need extra 5-10 ft extension cord to use with the Tesla mobile charge with J1772 adapter. Is NEMA extension cord safe? |
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10-24-2021, 08:11 PM | #7 |
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I don't know about extension cables. Having higher amp charger will not damage the car. This is what many of us are doing, which is future proofing when we install the charger. Many are installing 50+ amps.
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10-24-2021, 08:14 PM | #8 | |
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The link you provided here is if you elected not to use a Tesla charger. If you buy this one you don't need any adapters. This one is a J1772 connector that fits the BMW receptacle
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10-24-2021, 08:15 PM | #9 | |
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PS - this is a 45e thread, in case you hadn't noticed. |
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10-24-2021, 08:49 PM | #11 |
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An EVSE is basically a fancy on/off switch with a cord to plug into the vehicle...all charging is done IN the vehicle where it takes the ACV in and converts it to DCV to charge the batteries...Tesla works the same way (but it also allows DCV inputs that can charge it faster). Your home unit is just passing ACV through it...you need the right plug to get it into the X5. That's what the adapter is for if you want to use it. It can also be useful if you travel and there's a Tesla destination charger at, say, your hotel...it would allow you to plug that into your vehicle.
A simplistic way to think about it is if you have an iPhone, but want to try to plug it's charging cable into your Android device...the plugs are different...doesn't work, but plug in the right cable to say your computer's USB socket, and you can charge whatever you want as long as the cable is correct...the Tesla Tap, or other adapter is just an adapter to get from the Tesla box to your BMW (and every other EV) so it can charge. You won't damage your cellphone charger plugging it into the 120vac 15A socket, but that same socket will let you plug in a space heater that draws maybe a thousand times more power. IOW, it doesn't matter that the X5 can only use 16A if there's more available just like you can put a 40W or 100W bulb in your lamp...the vehicle is smarter, in that the EVSE is sending it a signal that says the max you can pull is X, and the vehicle won't try to pull more than that. |
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10-24-2021, 08:57 PM | #12 |
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Extension cords generally are not a good idea, and if available (they're hard to find) are quite expensive. Every time you plug something into an extension cord, you risk a lousy connection, excess heat, and can literally melt things from the heat. The X5 doesn't draw all that much power, but people trying to use one at their maximum capacity with some of the adapter devices, overheat and fail eventually.
Since the 45e tends to run on batteries, backing it into the garage would put the charging port on the other side, maybe closer to your current EVSE. That's one thing I looked at when I bought mine 8-years ago...it has a long enough cable so it worked with my last EV that had the socket on the back right, and to get hung from the ceiling to reach the X5's socket on the front left. Just buying that cable probably costs $3/foot and the plug itself can set you back $100, so you can see why an adapter starts to cost a bit and an EVSE with a longer cable has some minimum cost, as well. |
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10-24-2021, 09:05 PM | #14 | |
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If I used the existing Tesla mobile cable (20 feet) with the J1772 adapter to run through the garage ceiling, then it'll be lengthy enough for 45e. I'm trying to find a solution where I can easily hang from the ceiling but when not plugged into the 45e, then I want 3-4 feet to raise back to the ceiling. just thinking through some ideas or items that I can buy to achieve it. Otherwise, the cable will always hang to the floor level.
Any ideas please do share. Thanks. Quote:
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10-24-2021, 09:11 PM | #15 |
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I screwed some hookeyes into joists, then used some bungee cords to attach the cable to it, high enough so it didn't hit the vehicle. There are J1772 holders you can screw to the wall like a holster to temporarily hold the plug if you don't want it dangling there. This is just one, there are lots of them out there... https://www.amazon.com/3L3Y-Charger-...V%2CB07L5BL38R
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10-24-2021, 09:20 PM | #16 | |
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Great help -thanks. Is there some elastic puller that can go up when done charging? I won't have enough length to go use a hookeye to put it back to the wall.
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10-24-2021, 10:39 PM | #19 |
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There is no industry standard on where the port is...all depends on where they can put the charging unit, and minimize the length of the cabling plus have room for the port. Everyone else in the USA uses a J1772 port for level 1 and 2 except Tesla but they can vary all around the vehicle with some of them in the middle of the front, and at each corner.
It appears that they put yours there to minimize the length of the cable run, since the power panel is right there. Since your box is a plug-in, nothing says you couldn't have a second socket installed where you want, but the cost to run additional wiring starts to add up, especially if you want it to run IN the wall, rather than on top of it. Functionally, running it on top of the wall with conduit to an additional socket wouldn't be too expensive. |
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12-18-2023, 10:51 PM | #20 | |
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12-19-2023, 09:38 AM | #21 |
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You coukd just buy the 240 volt adapter for your existing bmw charging cable. It comes prepped for 120volt but you can buy the 240 volt adapter from BMW with the nema 14-50 end. It will plug into the receptacle your existing wall charger uses
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