Very interesting, no experience but nice price and 'looks good'
I have had one. Very good chargers. My only complaint is the user cannot program them. So this makes it very important when you buy one to specify the exact voltage you will need when ordering.
Since you are using LEAF batteries, they use a bit of an odd voltage, and what voltage you use will depend on how many cells you have in series. So make sure you get that part right.
Leaf batteries are 66 AH, and you want to limit charge current to no greater than C/2 or 33 amps. So you could go as high as a 3300 watt Charger if you can afford it. But you might ask yourself do you really need a 2-Hour charge rate before dishing out the cash when a 1500 watt model or C/4 (4-hour rate) still gets the job done.
According to EVAlbum,com, Elcon is the second most used brand of charger for converted EVs, though well behind Zivan and with Manzanita Micro not far behind.
But the 1.8 and 3.3 kW models are rather different to the older models, much more compact for example, so these are a bit of an unknown quantity. I'd be interested to know what's inside them. I'm guessing wide band gap MOSFETs.
Alas, this only applies to chargers manufactured before late 2013. After that, they have an ARM processor, and I haven't looked at how to extract the firmware from those. Or even if it's possible.You can change the program within limits on your own. Coulomb has documented the process in the TCCH Elcon firmware thread.
Yeah I am pretty sure. They want money to change it. That is why it is imperative you order them with a specified algorithm.Really? I thought that I could change the profile with some software add on.
How did that charger turn out for you, Paul? Any update?We have had a bit of a discussion on the Australian EV Association forum regarding these chargers. I have now ordered the 3.3kw charger from China which is due for delivery after about 10th July.
I will keep you updated but my previous Elcon chargers have worked fine.
AC doesn't have positive and negative, dspite what a lot of electricians will tell you (especially in Australia, where many mains cables have red and black for active and neutral respectively, just as you would expect for positive and negative respectively). [ Edit: and I meant to say: I would assume that "null" means neutral (in Australia, light blue or black; note black is hot in the USA and some other places). I would also assume that "fire" is a poor translation of "active" (in Australia, brown or red). ]I then consulted the manual. For the AC input side, the A pin/hole is for the "Null" line and the B pin/hole is for the "Fire" line. The D pin/hole is for the GND line. Here in Aust the GND is commonly the earth line. However I have never heard of a "Null" line nor a "Fire" line. My assumption is that the Fire line is what I normally call the POSITIVE line and the Null line is what I call the NEGATIVE?
I would assume that A and D are both connected together, so you could use either, but you may as well use both connected together, to share the current. But it would be a really good idea to check this with a multimeter, with the charger turned off (and not having been turned on for the last minute or several).Problem 2 is that DC output side in the manual is described as "A.D" is positive and "B.C" is negative. I don't know if that means A OR D is Positive or that A AND D is positive. I assume that "A.D" being the Positive means that I can use either the A or D pin/hole for the positive and either the B or C pin/hole for the negative.
You should be able to sort that out by checking the earth pin; it should connect to the metal of the charger. Again, use a multimeter to find out which side of the letter is the indicated hole. Amazing and dangerous that they can make this ambiguous!Problem 3 is that on the female connector the holes are marked A, B, C, and D. The problem is that I can't tell which letter refers to which hole!
The nominal voltage is usually given as 7.5 V per module, or 3.75 V per cell. But I think I would give a nominal voltage of 3.70 VPC, so that you get a "standard" non-LiFePO₄ charge voltage range of up to about 4.1 VPC. It's all a bit mysterious how they select the charge profile. I'd want to get some details about it. Hopefully you can call them up and ask what to specify for Leaf cells. They are common enough that surely they would have a profile that is right for those cells.Nissan doesn't provide a "nominal" voltage for the cells, only a max voltage of 4.2 volt from what I could find.