I bought directly from Chargepoint and worked with their partners for the installation.
Charger cost: $518 (it was on sale for Black Friday)
Install cost: $1,248 (quoted at $1,518, so I saved $270)
This is in Northern VA, installed off a subpanel in the garage with a short run using metal conduit along the garage wall. No service upgrade was needed.
I’d expect 7.6 kW max on a 40 Amp breaker. Breakers are usually rated for 80% duty, so 80% of 40 is 32. 32 x 240 equals 7680 Watts, or about 7.6 kW. If your voltage isn’t exactly 240, which is common, you might see around 7 kW, which is still within the 32 amp limit.
@Reese
Cheers! I wasn’t overly concerned, just wanted to double-check.
Finley said:
@Reese
Cheers! I wasn’t overly concerned, just wanted to double-check.
Go into the app and check what it’s outputting. There are always some losses, which makes sense. But it’s good to confirm if the max current is set right. The app is pretty useful. You can adjust the current, which isn’t really needed for most people, but for me, it helps while I’m waiting for my service upgrade. I lower it during the day when I use other things, then increase it at night. The app also tracks usage and costs, which is helpful because my utility rates are directly linked to it, so the price is spot on. It’s a good way to keep track of what you’re spending on charging, since your electric bill won’t show this separately.
@Reese
You’ll probably lose about 10% in converting the voltage from 240V to somewhere around 500V, then rectifying it to DC.
If your vehicle is showing this, then it’s probably using some energy to warm the battery, and some of it is just losses when converting AC to DC.
Fern said:
If your vehicle is showing this, then it’s probably using some energy to warm the battery, and some of it is just losses when converting AC to DC.
Yeah, that’s what FordPass is reporting.
It’s normal. I get the same at 32 amps, give or take.
Kirby said:
It’s normal. I get the same at 32 amps, give or take.
Cheers!
A 40A breaker has a 32A charge limit, so 32A x 240V equals 7.6 kW max. You might not be hitting 240V exactly, which can range between 230V and 250V and still be considered normal.
This is normal. My Lightning pulls a little less on the same circuit compared to my Tesla. The Tesla pulls the full 32 amps, but the Ford only seems to pull just over 30 amps. Not sure why.
I shared the install details (cost, location, etc.) in case anyone is looking for pricing for their own setups.
Mine’s an older model. The average is around 7.2 kW, with peaks up to 7.9 kW. If I hardwire it, I could increase the breaker and get a bit more power out of it.
I’m running a 48A hardwire and getting 10.4 kW in Northern VA. It wasn’t necessary, but I found two Emporia chargers on sale for $299 each and decided to go for it.
Addison said:
I’m running a 48A hardwire and getting 10.4 kW in Northern VA. It wasn’t necessary, but I found two Emporia chargers on sale for $299 each and decided to go for it.
Just checked the current draw: my wife’s car is pulling 11.5 kW, and my truck is pulling 11.2 kW.
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Vann said:
The comment was deleted.
Don’t do that; the 40A setting needs a 50A breaker.
Vann said:
The comment was deleted.
Don’t do that; the 40A setting needs a 50A breaker.
The setting in the app is for ‘Breaker amperage,’ not output, right?
@Finley
Yes, the setting is for ‘Charge current limit’ set to 40A (the max). I have a 50A breaker following the 80% rule.