what charger plug to order?

[CrazyOne]

If you hardwire, you can get the fastest charging possible. if they wont hardwire, can they just run the wires and appropriate breaker and terminate it in a box. You can easily connect to the EVSE.

+1

Hardwiring is safest for EV charging. Very few plugs can take the constant load without overheating. If they won't, have them install the wiring and connect the charger later.

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[md2023]

14-50. If hardwiring is an option, I'd hardwire at least one for the Rivian charger. Otherwise I think you'll be limited to a max charge rate of 40A/9.6kW (instead of the 48A/11.5 kW max the R1 can take). It's a difference of about 5 miles per hour on the Rivian large pack.

Thanks. Pick my R1T up this WE and have two 14-50 outlets on 50 amp breakers already in garage. The best I can understand is that using the Rivian supplied 14-50 plug I would be getting apx 15-16 miles added per hour (my model 3 with the Tesla plug currently gets a surprising 30 miles added per hour). What should I expect with a Chargepoint flex plugged into the 14-50? Their web site cites 30 miles added per hour at 40 AMPS. Sound right? Any experience supporting/contradicting? Thanks and apologies if this is answered elsewhere.

 

[MIG]

The best I can understand is that using the Rivian supplied 14-50 plug I would be getting apx 15-16 miles added per hour (my model 3 with the Tesla plug currently gets a surprising 30 miles added per hour).

That's just a function of vehicle and battery size. For example, at 50 Amps (about 11-12 kW) a Chevy Bolt with a 65kW/h battery (half the size of the Rivian's battery) should get about 66 miles of charge in an hour compared to the Rivian's 22 miles/hour.

 

[md2023]

That's just a function of vehicle and battery size. For example, at 50 Amps (about 11-12 kW) a Chevy Bolt with a 65kW/h battery (half the size of the Rivian's battery) should get about 66 miles of charge in an hour compared to the Rivian's 22 miles/hour.

Thanks. So the 22 miles/hour you state is using the Rivain supplied plug? Or the Chargpoint Flex? I've been told 15-16 miles/hour for the Rivian plug. I'd be happy with 22.

 

[MIG]

Thanks. So the 22 miles/hour you state is using the Rivain supplied plug? Or the Chargpoint Flex? I've been told 15-16 miles/hour for the Rivian plug. I'd be happy with 22.

Not a function of the plug, it's a function of the current flowing to the charger and the charger's capacity to handle that current. Dedicating a 60 Amp circuit to a charger that is rated for 50 Amps will give you about 48 useable Amps. I have that setup in my garage, an Autel Maxicharger plugged into a 60 Amp dedicated circuit. That gives me around 11-11.5 kiloWatts of charge per hour. At my typical usage level I get about 2 miles per kiloWatt (the price you pay for moving a very heavy vehicle) so I get about 22 miles of charge for every hour it's plugged in. A Chevy Bolt weighs half as much and with a battery that's half the size it gets a lot more efficiency (not as much "oomph," with a max HP of about 200, and more importantly, just one small efficient electric motor instead of 4.)

 

[evguy]

Just to be clear, as far as I know there are no plug in charges that will deliver a charging current greater than 40A.

Thanks. So the 22 miles/hour you state is using the Rivain supplied plug? Or the Chargpoint Flex? I've been told 15-16 miles/hour for the Rivian plug. I'd be happy with 22.

You won't get the max charge rate of 22-25 mph on the Rivian battery unless you're charging on a 60A/240V circuit, which must be hardwired. That setup will deliver the highest power level the Rivian can accept from an AC source - 11.5 kW (48 usable amps X 240V = roughly 11.5 kW). Usable amps are limited to 80% of the circuit's capacity (48 usable amps on a 60A circuit).

Rivian doesn't make a plug in charger, only a hard wired charger. With a plug in charger (such as the Chargepoint flex) you'll be limited to a max charge current of 40 usable amps on a 240V/50A circuit. That setup will deliver a power level of about 9.6 kW, which should give you somewhere between 15 - 20 mph on the Rivian battery.

 

[Monkey]

I'm a bit late to this thread, but wanted to say that the ChargePoint Home Flex is a great charger, but they still have not opened up their system to allow more than one of them to be managed by the same account! You will have to have a separate account/login for each charger and it's a pain signing in and out of your app when you need to manage.

Other than that, like I said, great chargers. Best if you hardwire though. If you're going to plug in, the 14-50 version gives you the more commonly used plug for new installs these days, but doesn't really matter.

Why won't your contractor direct wire them? And what wiring options do you have for running a circuit for them? If they're just going to run 6/3 NMB or ROMEX, that isn't going to give you anymore capability than the 14-50 plug if you direct wire later -- you will be limited to a max charge rate of 40A. (50A breaker). If they pre-wire with 6AWG THHN -- requires MC or conduit, you can put it on a 60A breaker for 48A charging.

 

[DaveA]

Thanks. So the 22 miles/hour you state is using the Rivain supplied plug? Or the Chargpoint Flex? I've been told 15-16 miles/hour for the Rivian plug. I'd be happy with 22.

FWIW, I have just used the portable charger as my go to and it gets 13-14 at 32 amps on a 14-50. I imagine 40 amp is more like 17-18 per hour.

 

[Killer95Stang]

FWIW, I have just used the portable charger as my go to and it gets 13-14 at 32 amps on a 14-50. I imagine 40 amp is more like 17-18 per hour.

I'm going to try that portable charger and see how it goes. My wife only drives 35 miles round trip three days a week for work. A few local errands the rest of the days. I think that will do for now, until my electrician buddy can get over to upgrade the wiring. High prices for airline tickets are hitting me left and right for a couple vacations we have planned in July and Oct. I'd like to put off any more expenses like that for a few months..

 

[md2023]

Thanks. Pick my R1T up this WE and have two 14-50 outlets on 50 amp breakers already in garage. The best I can understand is that using the Rivian supplied 14-50 plug I would be getting apx 15-16 miles added per hour (my model 3 with the Tesla plug currently gets a surprising 30 miles added per hour). What should I expect with a Chargepoint flex plugged into the 14-50? Their web site cites 30 miles added per hour at 40 AMPS. Sound right? Any experience supporting/contradicting? Thanks and apologies if this is answered elsewhere.

First charge plugged into Nema 14-50 on a 50 amp breaker with included mobil charger averaged about 15 - 16 miles added per hour (21 kwh in 3 hours, 12 min). May stick with this for now.
Any thoughts on how many more miles the chargepoint flex pug ged into 14-50 would have added (if any) in that same time span?

 

[moosehead]

If you hardwire, you can get the fastest charging possible. if they wont hardwire, can they just run the wires and appropriate breaker and terminate it in a box. You can easily connect to the EVSE.

This. Have them run the wires to a box and either have someone else come out to connect EVSE when it arrives, or you can do so yourself. Very straightforward.

As stated above, hardwire is highest charging rate, safest, and provides clean mount with no extra wiring. Latter is important as you have enough EVSE cable to manage and store and are running two chargers.

+4 to the Chargepoint Flex setup.

 

[md2023]

This. Have them run the wires to a box and either have someone else come out to connect EVSE when it arrives, or you can do so yourself. Very straightforward.

As stated above, hardwire is highest charging rate, safest, and provides clean mount with no extra wiring. Latter is important as you have enough EVSE cable to manage and store and are running two chargers.

+4 to the Chargepoint Flex setup.

About how many miles added per hour are people getting with the Chargepoint flex (assuming 40 AMPS being delivered from 50 AMP breaker) plugged into Nema 14-50? ty

 

[MIG]

First charge plugged into Nema 14-50 on a 50 amp breaker with included mobil charger averaged about 15 - 16 miles added per hour (21 kwh in 3 hours, 12 min). May stick with this for now.
Any thoughts on how many more miles the chargepoint flex pug ged into 14-50 would have added (if any) in that same time span?

On a 50A breaker you'll get 40A so about what you're getting now or maybe 17-18 miles. The biggest advantage would be convenience.

 

[rpo]

Emporia makes a great charger that comes with a 14-50 plug AND can be hardwired too so you can switch it later as needed. I've been using one for a year. Their app has tons of usage data and alerts too.

 

[Mcdubjr]

I've been very happy with my Wallbox Pulsar Plus 48A. Had it installed on a 60 amp breaker.

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