Poll on charging current 10-3kw

[Dylancch]

I bought a 10kw charger today and hooked it up to the car. I'm getting a steady 9kw. So I'm not sure if the charger is limiting that or the car. Anyways do you think it's harmful to maxout the charger for longterm use or should I turn down the charger to a 7.5kw charger so the car and the chargers only running at 80% instead of 100%

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[macchiaz-o]

Thanks for making it multiple choice... But unfortunately it limited me to two votes, so I did not vote.

Any of the options in the poll are fine.

 

[SnBGC]

I don't believe the on board charger is user configurable. ??

 

[Dylancch]

I don't believe the on board charger is user configurable. ??

No but my evse is

 

[Dylancch]

Thanks for making it multiple choice... But unfortunately it limited me to two votes, so I did not vote.

Any of the options in the poll are fine.

Changed

 

[SnBGC]

No but my evse is

Oh okay. The thread title threw me off....

I would select the 7.x kW choice...

 

[TheCats]

Are you hooked up to a 208V (one leg of 3 phase 240V) or a 240V system?

The on-board charger is rated at 10.5 kW (*), which appears to be 240V @ 44 amps. If you supply 208V, the current is still limited to 44 amps. 208V @ 44A is 9.152 kW.

* European destination cars with a CCS2 onboard charger appears to be rated at 11 kW. CCS2 has a three phase option, so the onboard charger is likely very different.

 

[Dylancch]

Are you hooked up to a 208V (one leg of 3 phase 240V) or a 240V system?

The on-board charger is rated at 10.5 kW (*), which appears to be 240V @ 44 amps. If you supply 208V, the current is still limited to 44 amps. 208V @ 44A is 9.152 kW.

* European destination cars with a CCS2 onboard charger appears to be rated at 11 kW. CCS2 has a three phase option, so the onboard charger is likely very different.

240.v

 

[kltye]

I would charge the battery as slowly as possible for your daily needs, and then add maybe 15% to that number for emergency use. No reason to keep the state of charge high if you don't need it.

 

[Mach-Lee]

You've previously said you have 40A service, if that's the case YOU ARE OVERLOADING your circuit charging at 9.6kW. You need to set it to 32A/7.6kW MAX on 40A circuits (80% rule). Your charge rate is limited by your circuit size and must be set correctly to avoid an electrical fire.

Also you can't just swap the breaker out for a bigger one. Breaker has to match the wire size.

 

[Dylancch]

I would charge the battery as slowly as possible for your daily needs, and then add maybe 15% to that number for emergency use. No reason to keep the state of charge high if you don't need it.

Charging from a wall outlet(240volt) is extremely low current at 10kw. I bet it's a .1c rating you think your putting in that's only 28 amps at 360ish volts dc on the battery. A 1.c rating would be at a fast charger putting in around 80,000watts

 

[Dylancch]

You've previously said you have 40A service, if that's the case YOU ARE OVERLOADING your circuit charging at 9.6kW. You need to set it to 32A/7.6kW MAX on 40A circuits (80% rule). Your charge rate is limited by your circuit size and must be set correctly to avoid an electrical fire.

Also you can't just swap the breaker out for a bigger one. Breaker has to match the wire size.

Breaker was replaced by an electrician and he oversized the wire previously because he new I wanted a 40amp evse

 

[Dylancch]

240.v

And FYI 208v is 2 legs of a star configuration 1 leg to neutral is 120v. Or unless your referring to 1 leg of delta configuration wich I believe is 277v

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