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LTLFTcomposite
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Re: Charging via 13amp

Mon Jan 17, 2011 4:47 pm

Has it been confirmed that the L1 charging cord differs between US and UK versions? Any change the charger in the car is voltage sensing?
LTL
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garygid
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Re: Charging via 13amp

Mon Jan 17, 2011 5:04 pm

The UK does not have a "Level 1" (120v) charging cord.

They get what we would call a "Level 2" (near 240v) charging cord.
Voltage in the UK is usually 240v (or 230v +/- 10%), I believe.
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Spies
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Re: Charging via 13amp

Mon Jan 17, 2011 5:16 pm

leafme wrote:The L2 EVSE in my garage is capable of passing 30a (listing maximum) and is fed by a 240v, 40a branch circuit (technically, the EVSE could be rated as high at 32a on a 40a branch circuit but it's not for some reason).
I actually came across the reason for this today researching something else but I don't have the links at the moment. Supposedly the J1772 Yazaki connector and cable initially failed UL testing at 32 amps but passed when tested at 30 amps.
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smkettner
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Re: Charging via 13amp

Mon Jan 17, 2011 5:23 pm

garygid wrote:The UK does not have a "Level 1" (120v) charging cord.

They get what we would call a "Level 2" (near 240v) charging cord.
Voltage in the UK is usually 240v (or 230v +/- 10%), I believe.
Yes I would like to have a UK cord. I would just install a 14-50P and start charging.
Where can I get one? ebay link anyone?
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DarkStar
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Re: Charging via 13amp

Mon Jan 17, 2011 5:26 pm

LTLFTcomposite wrote:Has it been confirmed that the L1 charging cord differs between US and UK versions? Any change the charger in the car is voltage sensing?
The UK and US vehicles both are J1772-2010 compliant, so the on-board charger will be auto-ranging. As soon as I get my car, I'll be checking out the included Level 1 EVSE to see if the PWM signal generator is auto-ranging as well. If so, I should be able to have instant 240 volt, 12 amp charging!
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LTLFTcomposite
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Re: Charging via 13amp

Mon Jan 17, 2011 5:30 pm

So the J1772 thingy signals voltage as well as current?
LTL
White 2012 SV delivered 10 Dec 2011 returned 25 Nov 2014 replaced with stopgap ICE Sentra
[35 months] [35K miles] [9 Bars]
2013 Volt replaced after 36 months/30k miles with ICE Rogue
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smkettner
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Re: Charging via 13amp

Mon Jan 17, 2011 5:32 pm

I think the on board charger is autoranging from 90 to 250v just like your laptop brick.
EVSE gives a signal that the connection is made and max amps to draw.
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garygid
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Re: Charging via 13amp

Mon Jan 17, 2011 5:37 pm

The UK unit (without internal modification) would only give you 13 amps, not the 16 amps that the LEAF is capable of using. So, approximately 10-hour charging instead of 8-hour. Still, good for many uses, but PERHAPS "illegal" to use here in the USA.

I expect (hope) that the SPX all-voltage, 12-to-32 amp (field-adjustable) L1/L2 EVSE will be ... better, and might even cost less.

No, the EVSE does not "signal" the voltage, but the LEAF's charger COULD measure the AC voltage, IF it wanted/was designed to do so.
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planet4ever
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Re: Charging via 13amp

Mon Jan 17, 2011 8:01 pm

garygid wrote:No, the EVSE does not "signal" the voltage, but the LEAF's charger COULD measure the AC voltage, IF it wanted/was designed to do so.
Surely it must be able to automatically adjust to multiple voltages. How else could you use the same port for L1 and L2 EVSEs?
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garygid
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Re: Charging via 13amp

Mon Jan 17, 2011 9:13 pm

The charger in the LEAF probably has a "universal" voltage input, accepting about 90v to 250v AC.

The LEAF's charger COULD measure the input voltage and draw 16 amps when the voltage is over about 200, and only 12 amps when under.

However, I think Andy indicated that (from a very quick look at the Service Manual) it looked like the charger would always try to draw 16 amps, if the EVSE's Control Pilot PWM signal would allow that much current to be used.

Presumably, a "more powerful" charger could use up to 32 amps.
See SOC/GID-Meter and CAN-Do Info
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2011 LEAF, 2014 Tesla S85
2018 & 2019 Tesla Model 3
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