Search found 2240 matches

by jonescg
Today, 10:01
Forum: Charging Infrastructure
Topic: How DC chargers work
Replies: 11
Views: 201

Re: How DC chargers work

Nope - just size them accordingly. 350 kW at 700 volts is 500 amps. As long as the battery was bigger than 500 Ah, that's only a 1 C discharge. Battery buffers for fast chargers makes even more sense when considering the instantaneous loads on the grid.
by jonescg
Yesterday, 20:49
Forum: Members Machines
Topic: Timh's 1965 Mk1 Cortina project
Replies: 9
Views: 95

Re: Timh's 1965 Mk1 Cortina project

Tim - if you don't mind, I'd be most grateful if you can throw a tape measure across the cells in the iMiEV pack. I need to know how much room there is for re-packing the module with more energy dense cells. The cell blocks in the foreground look to be about 600 mm wide and 360 long, and probably 17...
by jonescg
Yesterday, 14:05
Forum: Blade EVs
Topic: TO BLADE, OR NOT TO BLADE?
Replies: 9
Views: 153

Re: TO BLADE, OR NOT TO BLADE?

Best of luck with it!
by jonescg
Sat, 18 Aug 2018, 14:53
Forum: Nissan Leaf
Topic: Non OEM Leaf battery upgrade?
Replies: 14
Views: 216

Re: Non OEM Leaf battery upgrade?


At 2:10 he discusses the centralised BMS.
by jonescg
Sat, 18 Aug 2018, 12:27
Forum: Nissan Leaf
Topic: Non OEM Leaf battery upgrade?
Replies: 14
Views: 216

Re: Non OEM Leaf battery upgrade?

It is not only the guessometer that will be out, but the car may actually stop with 50% capacity left. You could make a resistor voltage divider arrangement off each cell (between it and the total pack) to trick the system into thinking the voltage is higher than it is and still monitor balancing, ...
by jonescg
Sat, 18 Aug 2018, 12:25
Forum: Nissan Leaf
Topic: Non OEM Leaf battery upgrade?
Replies: 14
Views: 216

Re: Non OEM Leaf battery upgrade?

Nice - any idea on price? US$0.85/Ah - or in Aussie dollars, about $118 each for the 72 Ah cells, $165 each for the 100 Ah cells and $222 each for the 135 Ah cells With a bit of research, maybe a clever simple cooling system could be added too. A few options are out there, depending on what fits be...
by jonescg
Fri, 17 Aug 2018, 21:05
Forum: Nissan Leaf
Topic: Non OEM Leaf battery upgrade?
Replies: 14
Views: 216

Re: Non OEM Leaf battery upgrade?

The plan is to leave the Nissan BMS exactly where it is, and just replace the cells. The Leaf BMS wiring loom is great because it's modular with HV wiring loomed back to a central unit. It should be far easier to swap the cells from underneath than the iMiEV where they are integrated into the tops o...
by jonescg
Thu, 16 Aug 2018, 16:26
Forum: Nissan Leaf
Topic: Non OEM Leaf battery upgrade?
Replies: 14
Views: 216

Non OEM Leaf battery upgrade?

Hi All, These look to be a generic brand Samsung SDI cell, and could be a winning formula for cost effective, high energy density storage. http://www.liyuanbattery.com.cn/en/product_detail-788672-1943470-81261.html Their 135 Ah cell promises 220 Wh/kg - about twice that of the original Leaf battery ...
by jonescg
Thu, 16 Aug 2018, 14:30
Forum: Members Machines
Topic: dogphlap's Jumbuck
Replies: 19
Views: 1407

Re: dogphlap's Jumbuck

I have this exact motor and inverter ready to go in the Prelude. Did you ever install it? Did you find the gearbox was essential? Need the clutch?
by jonescg
Thu, 16 Aug 2018, 11:17
Forum: Other
Topic: e-nv200
Replies: 4
Views: 173

Re: e-nv200

Nissan battery packs are very easy to retro-fit with new battery cells. Sounds like a project.
by jonescg
Thu, 16 Aug 2018, 10:32
Forum: Batteries, charging, management and monitoring
Topic: Zappi EVSE
Replies: 10
Views: 184

Re: Zappi EVSE

Those guys are corporate supporters of the AEVA - so hit them up for a discount.
by jonescg
Wed, 15 Aug 2018, 16:31
Forum: Charging Infrastructure
Topic: How DC chargers work
Replies: 11
Views: 201

Re: How DC chargers work

This is the basic layout of DC fast charger: DCFC circuit.jpg 1. Input precharge circuit to protect switching gear from high inrush currents. 2. Input full bridge rectifier 3. Input capacitors for smoothing the DC. 4. IGBT array for generating high frequency AC 5. Isolating transformer (can also be ...
by jonescg
Mon, 13 Aug 2018, 21:33
Forum: Renewable Energy and Storage (Non-EV)
Topic: Off-grid solar diagram / ideas
Replies: 8
Views: 263

Re: Off-grid solar diagram / ideas

If I'm not mistaken, the way this is set up, should the BMS decide to cut the contactor off it will remain off even when the sun comes out again. If the BMS is the last line of defence this might be fine. I think the PIP5048 can be set to stop drawing power at a setpoint voltage, like 43 volts or so...
by jonescg
Mon, 13 Aug 2018, 16:20
Forum: Technical and conversion discussion
Topic: TE Connectivity contactors
Replies: 16
Views: 756

Re: TE Connectivity contactors

That's US dollars. By the time the exchange rate, shipping and GST are added it was more like $41.
I got mine from Mouser.
by jonescg
Mon, 13 Aug 2018, 16:05
Forum: Renewable Energy and Storage (Non-EV)
Topic: Off-grid solar diagram / ideas
Replies: 8
Views: 263

Off-grid solar diagram / ideas

I've decided to start three threads on how the keen amongst us might set up a solar + storage system. Pending further input from the brainstrust here, this would be a fairly sensible way to do it: An off-grid setup: offgrid setup.png The PV array is set up as three panels in series, and as many of t...
by jonescg
Mon, 13 Aug 2018, 13:39
Forum: Technical and conversion discussion
Topic: TE Connectivity contactors
Replies: 16
Views: 756

Re: TE Connectivity contactors

Just ordered 2 of the FTR-J2AK012W relays myself.
by jonescg
Mon, 13 Aug 2018, 09:25
Forum: Renewable Energy and Storage (Non-EV)
Topic: Brighsun 220Ah cells
Replies: 20
Views: 1230

Re: Brighsun 220Ah cells

I have bought 16 Batrium BMS modules of the terminal + flylead variety. I'm having some regret because it would have been easier to use the dual flylead modules but it doesn't matter. I'm planning on using aluminium links like Steve. Thanks for the Alvania tip :-) My PIP inverter just arrived and I...
by jonescg
Sun, 12 Aug 2018, 17:23
Forum: Blade EVs
Topic: LONG DISTANCES IN A BLADE
Replies: 11
Views: 746

Re: LONG DISTANCES IN A BLADE

The three phase adapter only allows you to access single phase to supply the on board charger. It won't charge any faster, it just gives you more options.
by jonescg
Sun, 12 Aug 2018, 10:43
Forum: Electric motors and controllers
Topic: Which Motor?
Replies: 7
Views: 252

Re: Which Motor?

You will definitely need the gearbox - anything under 200 Nm is a bit weak for pushing 1000 kg of car around.
by jonescg
Sat, 11 Aug 2018, 18:12
Forum: The Lounge
Topic: Repair 10A-15A Converter?
Replies: 13
Views: 324

Re: Repair 10A-15A Converter?

L&H are great if you don't want to buy anything in a hurry, or at a good price...
by jonescg
Fri, 10 Aug 2018, 15:10
Forum: Technical and conversion discussion
Topic: 10kW Motorbike Conversion
Replies: 12
Views: 325

Re: 10kW Motorbike Conversion

My 4 kW scooter does 70 km/h, and that's honkin' on bobo. So 8 kW should manage 100 km/h (eventually).
by jonescg
Thu, 09 Aug 2018, 15:46
Forum: General EV Discussion
Topic: MX-5 Hybrid conversion
Replies: 8
Views: 269

Re: MX-5 Hybrid conversion

Geoff O'Toole in Sydney might be able to help - because he needs more things to work on :P
Sounds like a neat project - the motor will effectively be the transmission?
by jonescg
Thu, 09 Aug 2018, 11:40
Forum: General EV Discussion
Topic: Hydrogen
Replies: 25
Views: 1730

Re: Hydrogen

Yeah there's a whole industry dedicated to extracting, compressing and even liquefying gases. Hardly a surprise the industry sees hydrogen as their last chance for relevance in a changing energy/transport world. The heart of this issue is a viable export industry - we currently export billions of do...
by jonescg
Wed, 08 Aug 2018, 14:32
Forum: For Sale/Wanted
Topic: For sale daihatsu sirion 144v 24kv kostov motor zeva controller 45 thunder sky 100ah batteries with bms new 144vcharger
Replies: 3
Views: 252

Re: For sale daihatsu sirion 144v 24kv kostov motor zeva controller 45 thunder sky 100ah batteries with bms new 144vchar

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Just helping out.
by jonescg
Wed, 08 Aug 2018, 09:25
Forum: Hyundai
Topic: Hyundai Australia Kona EV info
Replies: 32
Views: 2044

Re: Hyundai Australia Kona EV info

I think the Kona can fit that much battery because the Leaf wasn't really trying...