Charger grizzl -e 40amp

[niall]

Grizzl -e. 40amp charger is charging at
8.7kwh. On the max setting
Standard range 22
Does any one have the same charger and getting the 9.6kw

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[MountainAlive]

I have this one and I also get 8.7. There’s about a 10% charging loss from plug to truck battery for most chargers that I’m aware of. So 9.6 x .90 =8.64

 

[niall]

I have this one and I also get 8.7. There’s about a 10% charging loss from plug to truck battery for most chargers that I’m aware of. So 9.6 x .90 =8.64

Thanks for the info

 

[flyct]

Grizzl -e. 40amp charger is charging at
8.7kwh. On the max setting
Standard range 22
Does any one have the same charger and getting the 9.6kw

My Tesla Wall Connector at our cabin is on a 50 amp circuit set to 40 amps.. While charging the Tesla charger reports 9.6 kWs being supplied and the truck reports 8.7 kWs to the battery. Normal due to Loss.

looking at charge history for same charge session:
Tesla Charger reported delivered 67.4 kWhs
Ford reported 62 kwhs

Other recent session
71.8 kwhs vs 66kwhs.

 

[FloridaMan655321]

My Tesla Wall Connector at our cabin is on a 50 amp circuit set to 40 amps.. While charging the Tesla charger reports 9.6 kWs being supplied and the truck reports 8.7 kWs to the battery. Normal due to Loss.

looking at charge history for same charge session:
Tesla Charger reported delivered 67.4 kWhs
Ford reported 62 kwhs

Other recent session
71.8 kwhs vs 66kwhs.

This is how I have my setup as well. I specifically chose to set it up to 40 amps, and from the Tesla app it shows 9.6 kW. Ford app shows 8.9 Kw.

 

[NW Ontario Ford Lightning]

I have the 40A Grizzl-E charger - inside it has four set points (16A, 24A, 32A and 40A) these are easily adjustable.

Grizzl-E also make a 48A (for SR) and an 80A (for ER) for anyone interested.

 

[Lucky Larry]

I have the same charger, its set at 40 amps as well. using a voltage and amp meter it will pull 39.5 amps at 243 volts. to calculate power the formula is Power =current x voltage in my case the power = 39.5 amps X 243 volts or 9598.5 Watts. Or 9.6 kW. My ford pass app shows the same as yours 8.7 kW, which i think they are calculating by dividing the power added in kWh by the time charging in hours. attached are pictures of the meter i used and the charger.

 

[NW Ontario Ford Lightning]

I am no electrician, but I wonder if the difference we see is related to the power factor, or the losses from AC-DC conversion, or both?

 

[queuewho]

Yep, same, my Grizzl-e duo, fordpass data shows 8.88 kW

 

[RickLightning]

I have the same charger, its set at 40 amps as well. using a voltage and amp meter it will pull 39.5 amps at 243 volts. to calculate power the formula is Power =current x voltage in my case the power = 39.5 amps X 243 volts or 9598.5 Watts. Or 9.6 kW. My ford pass app shows the same as yours 8.7 kW, which i think they are calculating by dividing the power added in kWh by the time charging in hours. attached are pictures of the meter i used and the charger.

Why the sticker?

I am no electrician, but I wonder if the difference we see is related to the power factor, or the losses from AC-DC conversion, or both?

Loss is due to resistance and conversion.

A hardwired charger loses 7%.
A plug-in may lose around 10%.
120v loses around 15%.

Note that while the math is 240v x amps minus loss, voltage can vary.

 

[Adventureboy]

I have this charger and sometimes I only get 8.6kw.
The truck selects the amount of power it pulls from the charger based on the communication protocol with the charger and it knows it can draw 40 amps. The Grizzl-E is only a monitored switch. The truck's Onboard Charger loses about 7-8% to heat due to electrical inefficiencies. This comes right off the top of the 9.6kw, meaning it can only put a maximum of 8.8kw to the battery, which is what you see in FordPass. This can drop a bit more if the mains voltage drops under full power. 8.7kw is quite normal for any 40 amp EVSE and changing it to another 40 amp EVSE will yield the same result. Note if you measure the current going into the EVSE, it is likely very close to the 40 amps.

 

[John Becker]

According to my 40 Amp "Smart" Grizzl-E app, my last charging session reported max power 9.15kW. That seems to be about the average of the past three sessions.

 

[MountainAlive]

According to my 40 Amp "Smart" Grizzl-E app, my last charging session reported max power 9.15kW. That seems to be about the average of the past three sessions.

That makes sense. The Grizzl E app is saying “here’s what I delivered: 9.15kw” but the Ford app is saying “here’s what I put into the battery after the electrical conversion losses 8.7kw”.

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