Search found 467 matches

by 4Springs
Sun, 15 Jul 2018, 06:13
Forum: Hyundai
Topic: Hyundai Australia Kona EV info
Replies: 15
Views: 598

Re: Hyundai Australia Kona EV info

reecho wrote:
Sat, 14 Jul 2018, 14:57
And this car will put the biggest dent in all the Model 3 pre-orders that Tesla have in Australia.
If it gets here before the Model 3. Based on past experience I'm not holding my breath!
by 4Springs
Thu, 12 Jul 2018, 16:40
Forum: Hyundai
Topic: Hyundai Australia Kona EV info
Replies: 15
Views: 598

Re: Hyundai Australia Kona EV info

Hey - according to that article it has wireless inductive charging!! :o
by 4Springs
Thu, 12 Jul 2018, 16:36
Forum: Hyundai
Topic: Hyundai Australia Kona EV info
Replies: 15
Views: 598

Re: Hyundai Australia Kona EV info

I Repeat it's a hatchback. Yeah, you don't have to repeat it. I will though - it's a hatchback. A very nice looking hatchback that might just fit our needs. As long as it can tow (like the ICE Konas) and as long as the seats fold down to make a flat cargo space (unlike the ICE Konas). We'd be repla...
by 4Springs
Sun, 01 Jul 2018, 06:31
Forum: Renewable Energy and Storage (Non-EV)
Topic: Low Cost BMS for Home Storage Batteries
Replies: 5
Views: 322

Re: Low Cost BMS for Home Storage Batteries

I think the best thing to do is put them all in parallel and leaver them like that for a week while the all reach the same state of charge. Should make the balancing job a bit easier. I did this with the LFP cells for my car. 45 of them. The way I did it was to loosely put bolts in the terminals, l...
by 4Springs
Tue, 26 Jun 2018, 17:57
Forum: Renewable Energy and Storage (Non-EV)
Topic: Low Cost BMS for Home Storage Batteries
Replies: 5
Views: 322

Re: Low Cost BMS for Home Storage Batteries

Hi Christopher, This looks like a great project. I'd like to help, but the soldering puts me off, I've never been much good at it. I followed your link to the BMS you made for your car and read in the Wiki that another option could be to get the whole board manufactured. Would this add much to the ...
by 4Springs
Sun, 24 Jun 2018, 06:17
Forum: General EV Discussion
Topic: Offer for all members Friday 9am WST
Replies: 13
Views: 642

Re: Offer for all members Friday 9am WST

I'm not sure that the specifications are correct for the 220Ah version - they are exactly the same as the 460Ah version except for the weight. Even lists the capacity as 460Ah! No, hang on, I'm wrong. The dimensions are not the same, the 460Ah one is taller - as per the photos above and as per the ...
by 4Springs
Sun, 24 Jun 2018, 06:02
Forum: Renewable Energy and Storage (Non-EV)
Topic: Low Cost BMS for Home Storage Batteries
Replies: 5
Views: 322

Low Cost BMS for Home Storage Batteries

Looks like I will be getting some of the ex-AVASS cells (as per the the forum topic here: http://forums.aeva.asn.au/viewtopic.php?f=16&t=5574 ). The "Low Cost BMS" is a project I used in my car, and should be ideal for these - low cost but just fancy enough to do all that is required. As is the tend...
by 4Springs
Sat, 23 Jun 2018, 06:26
Forum: General EV Discussion
Topic: Offer for all members Friday 9am WST
Replies: 13
Views: 642

Re: Offer for all members Friday 9am WST

I'm not sure that the specifications are correct for the 220Ah version - they are exactly the same as the 460Ah version except for the weight. Even lists the capacity as 460Ah!
by 4Springs
Sat, 23 Jun 2018, 06:23
Forum: General EV Discussion
Topic: Offer for all members Friday 9am WST
Replies: 13
Views: 642

Re: Offer for all members Friday 9am WST

They are very light for LFP. I can see why they were going to use them in buses. I could make a 10kWh 'generator'. Plug it into the 240V to charge up, then it provides 240V output. Use it as a range extender for the Brumby (charger on while driving), and as an AC coupled home storage battery. The ba...
by 4Springs
Fri, 08 Jun 2018, 18:45
Forum: Parts & Suppliers
Topic: Heat Conductive Materials
Replies: 7
Views: 506

Re: Heat Conductive Materials

if yuo can be sure it won't leak out the bottom or the sides, loosen it off, fill 'er up, and tighten the clamp again. No, definitely can't seal the bottom or sides. Even if I could, I doubt that it would fill the spaces well, there would be air bubbles everywhere. I'm going to have to take the she...
by 4Springs
Fri, 01 Jun 2018, 15:34
Forum: Parts & Suppliers
Topic: Heat Conductive Materials
Replies: 7
Views: 506

Re: Heat Conductive Materials

There is also goop in a tube which might be more practical to apply. AS1803-310ML Farnzy has some about $40/tube 8497400. For those following along at home, the last line of Richo's post means that the online-retailer called Element 14 sells this product. He's nicknamed it Farnzy, presumably becaus...
by 4Springs
Wed, 30 May 2018, 16:12
Forum: Parts & Suppliers
Topic: Heat Conductive Materials
Replies: 7
Views: 506

Heat Conductive Materials

Does anyone know of a heat-conductive material suitable for ensuring heat transfer between my motor and cooling coils? The motor is 270mm in diameter, and is surrounded by copper tubing which coils around it. The motor is not smooth, and the coils are not even, so there is probably little actual con...
by 4Springs
Thu, 17 May 2018, 18:05
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 57
Views: 2563

Re: Prelude conversion project - some questions

Details on that heat exchanger? It looks a neat little unit.
by 4Springs
Sun, 13 May 2018, 06:03
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 341
Views: 16933

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

Oh dear... https://www.gumtree.com.au/s-ad/brisbane-city/building-materials/off-grid-5kw-syst-with-safe-supercapacitor-batteries-62p-w/1178196224 Very professional-looking organisation there. I'd be interested in their Lithium Iron batteries but there doesn't seem to be any info! http://polygreenso...
by 4Springs
Mon, 16 Apr 2018, 16:05
Forum: Charging Infrastructure
Topic: The Energy Retailers Strike Back. Will Cheap Off Peak Rates Kill Battery Storage?
Replies: 14
Views: 540

Re: The Energy Retailers Strike Back. Will Cheap Off Peak Rates Kill Battery Storage?

It won't be long until off peak is basically 10pm until 3pm. The battery only needs to be big enough to last until off peak starts for best economics. Our electricity product has two off-peak times, one is 10:00-16:00, the other is 21:00-7:00. Peak price is 30c, off-peak 14c, feed-in is 10c. I wond...
by 4Springs
Sat, 31 Mar 2018, 08:23
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 341
Views: 16933

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

https://youtu.be/m_hyyQ5-d0E Super capacitor charge test Nobody has commented on the contents of this video yet! I'm waiting with bated breath! I've charged a lithium battery or two in my time, but never a supercapacitor. The results look like what I'd expect with a battery - what would the differe...
by 4Springs
Fri, 30 Mar 2018, 11:06
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 57
Views: 2563

Re: Prelude conversion project - some questions

I'm wondering if a thermostat can be set up so that if you're parked in the sun all day, the AC can come on if needed. Seems quite energy intensive though. Doesn't sound too hard, you'll need a thermostat anyway in normal running. If you need it to run when nobody is in the car it would be much mor...
by 4Springs
Fri, 30 Mar 2018, 04:41
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 57
Views: 2563

Re: Prelude conversion project - some questions

I figure a heat exchanger just before the blower is a good place to chill the battery coolant. Being tied directly to the air conditioning, whenever the driver is hot enough to need AC, the battery will get some of it too. I'm no expert, but my thought is that having the heat exchanger after the bl...
by 4Springs
Wed, 21 Mar 2018, 17:24
Forum: Charging Infrastructure
Topic: Home charging outlets - load sharing
Replies: 5
Views: 360

Re: Home charging outlets - load sharing

My off-peak tariff runs from 9pm to 7am, so can pull 70kWh from the grid over that period. In the hypothetical future I'd like to have my families Leaf and Model 3 (which have done 20-30 km each commuting), and a friend's Kona (who has driven 200 km from Launceston to stay overnight) and have the a...
by 4Springs
Wed, 21 Feb 2018, 18:08
Forum: Charging Infrastructure
Topic: Plugshare - outlet types
Replies: 22
Views: 2016

Re: Plugshare - outlet types

Is a "Wall outlet 3112 " a 3 pin Australian GPO style socket ? I have installed a J1772 socket in my EV conversion. My charge cord is a J1772 with a regular 3 pin 15A plug on the other end to suit the 15A outlet in my shed. The closest public charge points (within battery range ) to me are listed a...
by 4Springs
Mon, 22 Jan 2018, 13:54
Forum: Nissan Leaf
Topic: 2nd Hand LEAF
Replies: 23
Views: 1716

Re: 2nd Hand LEAF

Doesn't have to be serviced by Nissan.
There is a mechanic in Smithton that will service them, so it might pay to call around smaller mechanics to see if there is someone who is willing to take it on.
by 4Springs
Mon, 08 Jan 2018, 17:13
Forum: For Sale/Wanted
Topic: Help required with school assignment
Replies: 16
Views: 7974

Re: Help required with school assignment

These 4.8kW 36V Series DC are pretty close. Rip off the brake and you have dual shaft?!? http://billsmachinery.com.au/product/drive-and-brake-motor/ Any idea what RPM those would do Richo? The power looks good as an approximation before we get any actual specs. His first post suggests that a dual s...
by 4Springs
Mon, 01 Jan 2018, 18:13
Forum: For Sale/Wanted
Topic: Help required with school assignment
Replies: 16
Views: 7974

Re: Help required with school assignment

Hi there, I’m new on here and have came to Ask for help and information for my daughter. Her year 12 project for automotive is an old ride on lawn mower, that was kindly donated to her for this assignment. Besides looking old and tired the engine is the only thing that’s really stuffed. I thought s...
by 4Springs
Mon, 01 Jan 2018, 17:31
Forum: Batteries, charging, management and monitoring
Topic: Labelling of Battery Compartment ???
Replies: 5
Views: 853

Re: Labelling of Battery Compartment ???

where does one obtain such labels , I have the usual lightning bolt stickers but they give no indication of chemistry, or do I just write "LiFePo4" on the boxes with a Sharpie ?? My interpretation led me to get some yellow labels made up: DSCN4254.JPG These were made by my local trophy shop. It is ...
by 4Springs
Mon, 01 Jan 2018, 16:46
Forum: General EV Discussion
Topic: Driving an EV in slow moving traffic?
Replies: 10
Views: 829

Re: Driving an EV in slow moving traffic?

I go between our DC conversion (Brumby) and our Outlander. The Brumby has no creep and no regenerative braking. It has a 'clunk' as described by weber, where if you start out from a standstill the motor gets up a bit of movement before all the play in the drivetrain is taken up. I can stop this clun...