Search found 425 matches

by brendon_m
Tue, 11 Feb 2020, 23:44
Forum: General EV Discussion
Topic: Aussie electric vehicle sales triple in 2019
Replies: 15
Views: 374

Re: Aussie electric vehicle sales triple in 2019

The kona is 64kwh. Even at double the magic $100kwh that's still only $12800 in battery cost. The EV kona is $65k and the ICE kona can be had for $25k but if you want to compare apples to apples the highlander kona with an ICE is $40k. Add $15k for battery and it's still going to be $10k less than h...
by brendon_m
Tue, 11 Feb 2020, 06:03
Forum: Hyundai
Topic: ABS and Autohold Question
Replies: 7
Views: 167

Re: ABS and Autohold Question

Auto hold should not interfere with ABS on any car. Chances are that you just didn't hit the threshold for ABS to operate. Essentially the ABS module monitors each wheels speed and if detects that a wheel is slowing faster than the car could possibly be slowing down (ie it's skidding /slipping) then...
by brendon_m
Mon, 10 Feb 2020, 19:15
Forum: Nissan
Topic: 2014 Leaf manuals available for glove box?
Replies: 3
Views: 127

Re: 2014 Leaf manuals available for glove box?

I can't help with manual but the "Google translate" app works pretty well for translating images from your camera on the fly.
Just hold the book in front of your phones camera and read the English text on the screen
by brendon_m
Sun, 09 Feb 2020, 20:06
Forum: Mitsubishi
Topic: Aftermarket iMiEV battery upgrade project
Replies: 157
Views: 21768

Re: Aftermarket iMiEV battery upgrade project

jonescg wrote:
Sun, 09 Feb 2020, 20:03
they forgot to include some key features :o
Like insulation, Don't worry that's an unnecessary expense. ;)
by brendon_m
Sun, 09 Feb 2020, 19:03
Forum: Mitsubishi
Topic: Aftermarket iMiEV battery upgrade project
Replies: 157
Views: 21768

Re: Aftermarket iMiEV battery upgrade project

nuggetgalore wrote:
Sun, 09 Feb 2020, 17:30
especially if not consistent with either plus or minus.
He corrected it to be only positive
jonescg wrote:
Sun, 09 Feb 2020, 11:42
Turned out it's just continuous between the case and battery (+).
Which is a lot less unnerving.
by brendon_m
Sun, 09 Feb 2020, 19:00
Forum: Mitsubishi
Topic: Aftermarket iMiEV battery upgrade project
Replies: 157
Views: 21768

Re: Aftermarket iMiEV battery upgrade project

It's live alright - 0.01 ohms. So if you put a globe (or other load) from the negative terminal to the case it'll light up globe. Because that's not ideal. If its "just" the case acting as a capacitor then a short between cell cases isn't going to let all of the smoke out only drain the cell over t...
by brendon_m
Sun, 09 Feb 2020, 14:47
Forum: Electric motors and controllers
Topic: questions regarding rewinding and stator insulation
Replies: 14
Views: 249

Re: questions regarding rewinding and stator insulation

Here's what I've got 415V x 10A = 4150W 50Hz 415V / 10A = 41.5 Ohms (total impedance and resistance) Impedance @ 50Hz = 31.42 Err, that's like an equivalent impedance for the mechanical load (plus a small winding resistance and reactance). Impedance @ 100Hz = 62.83 If the impedance doubled at doubl...
by brendon_m
Sun, 09 Feb 2020, 13:56
Forum: Electric motors and controllers
Topic: questions regarding rewinding and stator insulation
Replies: 14
Views: 249

Re: questions regarding rewinding and stator insulation

Edit 4 Ignore the numbers , Im not thinking straight apparently, thanks coulomb for helping me see clearly what was staring me in the face. Here's what I've got 415V x 10A = 4150W 50Hz 415V / 10A = 41.5 Ohms (total impedance and resistance) Impedance @ 50Hz = 31.42 Impedance @ 100Hz = 62.83 (Edit 3,...
by brendon_m
Sun, 09 Feb 2020, 13:25
Forum: Electric motors and controllers
Topic: questions regarding rewinding and stator insulation
Replies: 14
Views: 249

Re: questions regarding rewinding and stator insulation

But yes, Current gives torque. However at a higher RPM there would be a higher current draw to make that extra power. If the voltage stays the same and the frequency increases, the current should increase too That depends on torque Higher frequency can mean less amps Volts x amps = power = Torque x...
by brendon_m
Sun, 09 Feb 2020, 12:00
Forum: Electric motors and controllers
Topic: questions regarding rewinding and stator insulation
Replies: 14
Views: 249

Re: questions regarding rewinding and stator insulation

Alan82 wrote:
Sun, 09 Feb 2020, 11:39
I was under the impression is was frequency that gave you RPM?
That's right, my mind was stuck in DC world.
I did say I was rusty...
by brendon_m
Sun, 09 Feb 2020, 11:33
Forum: Mitsubishi
Topic: Aftermarket iMiEV battery upgrade project
Replies: 157
Views: 21768

Re: Aftermarket iMiEV battery upgrade project

Not that it changes the outcome but is it actually live or just capacitance?
by brendon_m
Sun, 09 Feb 2020, 08:58
Forum: Electric motors and controllers
Topic: questions regarding rewinding and stator insulation
Replies: 14
Views: 249

Re: questions regarding rewinding and stator insulation

The current draw is not what gives you rpm it's voltage. Current gives you torque. I'm a bit rusty on motors but... If you rewind the motor from 1400rpm@415V like that it will end up as a 1400rpm@100V. Meaning if you want to spin the motor at 8400rpm you will need more volts. What you want to calcul...
by brendon_m
Sat, 08 Feb 2020, 17:51
Forum: Mitsubishi
Topic: Aftermarket iMiEV battery upgrade project
Replies: 157
Views: 21768

Re: Aftermarket iMiEV battery upgrade project

It's sitting at about 344 V. Which is 3.91 V per cell. At the time I pulled the pack out the GOM was saying 31 km remains and was sitting on about 1/3rd charged. Interesting. I've been recording the voltages vs percentage in my outlander to try to create a bit of a graph for my NCM cells in my moke...
by brendon_m
Sat, 08 Feb 2020, 17:40
Forum: Mitsubishi
Topic: Aftermarket iMiEV battery upgrade project
Replies: 157
Views: 21768

Re: Aftermarket iMiEV battery upgrade project

jonescg wrote:
Sat, 08 Feb 2020, 14:45
Geez, no pressure. Only 100 iMiEV owners hanging on this thread right now!!
I'll have you know there's an outlander phev in my carport that might want a battery upgrade at some point and I'm following your progress closely. So you can add the outlander owners on top of that 100
by brendon_m
Fri, 07 Feb 2020, 16:41
Forum: Nissan
Topic: Importing Leaf ZE1 (current) model..
Replies: 19
Views: 659

Re: Importing Leaf ZE1 (current) model..

Well, $1000 to convert to English or an extra $20000 to get an English one from Nissan Australia
by brendon_m
Fri, 07 Feb 2020, 07:15
Forum: General EV Discussion
Topic: Aussie electric vehicle sales triple in 2019
Replies: 15
Views: 374

Re: Aussie electric vehicle sales triple in 2019

Bums in seats. Getting people in an EV and explaining the pros and how a lot of the cons are irrelevant. So more events like electrikarna and presence at community fairs and shows etc
by brendon_m
Wed, 05 Feb 2020, 10:40
Forum: Hyundai
Topic: Hyundai Kona road Noise
Replies: 11
Views: 563

Re: Hyundai Kona road Noise

It's just off brand dynamat, like black and gold cornflakes vs kellogs. There's a difference but lots of people are happy with the cheaper stuff
by brendon_m
Mon, 03 Feb 2020, 16:35
Forum: Technical and conversion discussion
Topic: VW T3 syncro conversion
Replies: 7
Views: 340

Re: VW T3 syncro conversion

Maybe @francisco.shi 's all in one custom motor and gearbox would be the answer
by brendon_m
Mon, 03 Feb 2020, 12:55
Forum: Batteries, charging, management and monitoring
Topic: Low cost BMS
Replies: 434
Views: 58662

Re: Low cost BMS

weber wrote:
Mon, 03 Feb 2020, 12:16
But I agree that the present-day EV Power spec of not turning on the alarm until 4.0 V leaves much to be desired
The other big downside is not being able to check an individual cell.
by brendon_m
Mon, 03 Feb 2020, 11:01
Forum: Batteries, charging, management and monitoring
Topic: Low cost BMS
Replies: 434
Views: 58662

Re: Low cost BMS

They most definitely don't start bypassing till the cell reaches 3.8v and stop bypassing at 3.6v. These units shift 5 amps with a cell voltage of 3.8v or higher The other cell top units start balancing at 3.5V but not full current and work up to the full bypass current (in my case 700mA) which I gu...
by brendon_m
Mon, 03 Feb 2020, 09:29
Forum: Batteries, charging, management and monitoring
Topic: Low cost BMS
Replies: 434
Views: 58662

Re: Low cost BMS

I have these https://www.ev-power.com.au/product/cbm100-180/
in my car and they work seamlessly and don't get noticeably hot when balancing. Although they are only 700mA.

Your ones almost sound like they are set up for halfway between lifepo4 and NCM chemistry. Or they were faulty/built wrong
by brendon_m
Sun, 02 Feb 2020, 21:31
Forum: Mitsubishi
Topic: PHEV Loss of Km Range with Battery.
Replies: 52
Views: 8465

Re: PHEV Loss of Km Range with Battery.

Is the BMU VIN coded? Or could you buy a late model BMU and "upgrade" in a plug and play fashion? Having to have the module coded would make it harder but even still it might be an option once warranties run out to get a boost in (or at least restore) electric range. I'd guess either way mitsubishi ...
by brendon_m
Sun, 02 Feb 2020, 16:43
Forum: Technical and conversion discussion
Topic: CLASSIC CONVERSION: 1975 Toyota Corolla KE30
Replies: 6
Views: 280

Re: CLASSIC CONVERSION: 1975 Toyota Corolla KE30

Starting with lead is probably a waste. You would be better off finding a second hand lithium pack, even a heavily degraded one and using that for testing. Lead is heavy hard to get a lot of power out of and it gases. All of which would complicate the build and in the long run lithium will cost less...
by brendon_m
Sun, 02 Feb 2020, 16:33
Forum: Mitsubishi
Topic: Aftermarket iMiEV battery upgrade project
Replies: 157
Views: 21768

Re: Aftermarket iMiEV battery upgrade project

On the plus side the leaf will be easier because it has a spaghetti junction bms rather than the cell top boards. You will be able to put the cells in however and just run the wires to wherever they need to go. On the down side it's easy to upgrade a leaf now by getting a later model pack and it mig...