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Post by Feng on Nov 14, 2014 15:13:49 GMT 11
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Post by gabzimiev on Nov 14, 2014 16:49:18 GMT 11
yes the unit only works until 40 degree C.....
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Post by kris on Mar 28, 2015 12:48:47 GMT 11
I want to see a movie in Leichardt this avo. Anybody know the status of my favourite fast charger today?
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Post by richardh on Mar 28, 2015 16:59:11 GMT 11
Used it today at 2pm. All good.
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Post by kris on Mar 28, 2015 18:02:48 GMT 11
Much obliged
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Post by Feng on Mar 28, 2015 23:53:03 GMT 11
Sorry, it went offline about ten seconds after I started using it tonight. I swear I didn't break it!
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Post by kris on Mar 29, 2015 9:16:26 GMT 11
Feng! I was gonna plug in again today after last nights success. You're such a killjoy. BTW forget the fancy LeafSpy app for gauging battery condition, a fast charger tells you all you need to know about where your 11 bar battery is at. New, George st used to push 140+ amps into my traction pack & the temperature never moved, now days its 121A max & temperature goes up a bar. Increasing cell internal resistance is a terrible thing.
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Post by Feng on Mar 29, 2015 10:57:03 GMT 11
Sorry! I had a moment of panic when I plugged the handle in and felt some resistance. When it went offline I unplugged it and looked at the pins and found one missing. I looked up pictures online to confirm that it's missing by design, which was a huge relief. I thought it was bent and broke off in my car! So no, I don't know what happened, it just died for no reason. I feel obligated to return tonight to see if it's still offline since I feel bad for my fellow EV motorists.
FWIW my cells are at about 80% health, 84% capacity.
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Post by kris on Mar 29, 2015 12:44:44 GMT 11
Want me to print up a sign "this Chademo broken by Feng"? On past performance it will be ages till it's fixed, I'm gonna give Goulburn st in the city a shot. Does anybody know if they have J1772 plugs there or do I have to take my EVSE & an extension lead?
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Post by Feng on Mar 29, 2015 12:50:10 GMT 11
Nooooo!
They're just 15A outlets in the Goulburn St car park. You won't need an extension lead if you park nose first and use a padlock, unless you want to lock the EVSE under your bonnet.
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Post by kris on Mar 29, 2015 13:00:51 GMT 11
Yeah I'm a lock the EVSE under the bonnet sort of guy. Even if I wasn't I'd probably still need the extension lead because the monster 15A plug on my EVSE won't fit into most shuttered outlets like the ones at Rouse Hill shopping centre.
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Post by richardh on Mar 29, 2015 13:18:57 GMT 11
Hi Kris, Can you tell me how the DC fast charger gives information about the battery health? Intrigued. Thanks.
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Post by markrmarkr on Mar 30, 2015 7:28:47 GMT 11
If you use Goulburn St, be sure to complain to the staff about any hybrids you find there.
If you have already been, can you tell us how it went please.
Sent from my SM-N9005 using proboards
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Post by kris on Mar 30, 2015 10:46:56 GMT 11
basically what I said in the post richardh. A new battery with low internal resistance will take about 140A from a fast charger initially & they tend not to warm up much. Older batteries, with increasing internal cell resistance, take less current from the getgo & a bit more of the charging current is converted to heat by the higher internal resistance. I'm not privy to the full complexity of the fast charging algorithm, but you can bet it limits charge current based on cell voltages which also tend to rise faster with the higher the internal resistance. In the parlance of battery aficionados, new low resistance batteries are said to be stiff (because their low internal resistance most closely approaches the zero internal resistance of a theoretical perfect cell). Older batteries are softer or spongy, meaning that higher currents (either charge or discharge) tend to shift the packs operating characteristics more. In the good ol' days, before all this fancy lithium technology appeared, a favourite tool of auto electricians for evaluating the health of lead acid car batteries was a thing called a tong tester. Said device was basically a short circuit with a light globe in parallel, simulating an ICE starter motor. The brightness of the globe gave a good indication of battery internal resistance, the brighter the globe the lower the internal resistance. Similarly, the higher the initial charge rate on a fast charger, the lower the internal resistance.
Yeah saw all those horrid prius taking up spots markrmarkr. There was also an ICE which had a rude little note under it's windscreen wiper, so the staff there are trying at least. Unlike CastleHill shopping centre where all the GPOs have ICE vehicles parked in front of them all the time. I liked Goulburn st, the reserved spots are on the ground floor, so no going round & round the different levels. The power is free & the parking itself only costs ten bucks on weekends. Just don't go eastbound along Goulburn 'cause the parking station is on the right & you can't turn in over the median strip.
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Post by richardh on Mar 31, 2015 21:50:42 GMT 11
Thanks Kris!
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Post by markrmarkr on Apr 1, 2015 20:02:52 GMT 11
Kris,
It's good to see they are trying at least. I have to say the times I've used Goulburn St I really didn't need to. But just liked the setup so much I just wanted to.
I wonder if they are using the note I gave them - A whole lot of copies. It's a pitty they arn't putting them under the hybrid's wipers too.
Were the hybrids from NAB, did you notice?
Mark
Sent from my SM-T805Y using proboards
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Post by Feng on Apr 5, 2015 17:36:14 GMT 11
It did it again! I thought it was fixed and tried it again. Ten seconds later it went offline again. I'm going to check it out later today or tomorrow to see if it resets. Somebody else might want to give it a go, I hope it's not my car causing it.
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Post by kris on Apr 5, 2015 23:33:19 GMT 11
I've decided fast chargers belong to the same class of self aware technology as photocopies, the likelihood of you getting what you want is inversely proportional to your need for it. It's therefore important not to show any anxiousness, act casual like you really don't care if it charges or not.
Don't remember any badging on those fraud hybrids Mark. I reckon a non plugin hybrid in an EV spot is an offence under the crimes act, false pretences.
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Post by Feng on Apr 8, 2015 1:26:06 GMT 11
The QC worked for me tonight. It did stop with a different error when it was almost 80% but worked again after a restart. The DTC code I had had something to do with a difference in voltage between what the car and charger were reporting and that causes charging to stop. Gabz suggested my battery pack needed balancing since I haven't charged to 100% for a while until last night so that might be an explanation. The terminals on the CHAdeMO port looked pretty dirty too so I don't know if that would interfere.
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Post by kris on May 12, 2015 11:40:37 GMT 11
Goulburn st has no power & it looks like it might be off for a while (street outside dugup & generator installed to run the parking stn lights). Generator is in a wire cage (to keep desperate EV drivers at bay?) Lucky to find the NRMA chademo at Strathfield working on the drive out of town, phew!
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