Search found 34 matches

by leadwings
Wed, 08 Nov 2017, 15:57
Forum: For Sale/Wanted
Topic: WTB: 90Ah (or 100Ah) Winston cells x 9
Replies: 11
Views: 1273

Re: WTB: 90Ah (or 100Ah) Winston cells x 9

Terry, out of interest what meter do you use to monitor your battery SOC for your setups?
by leadwings
Mon, 30 Oct 2017, 13:55
Forum: For Sale/Wanted
Topic: WTB: 90Ah (or 100Ah) Winston cells x 9
Replies: 11
Views: 1273

Re: WTB: 90Ah (or 100Ah) Winston cells x 9

Thanks Terry. Our "change to a different camper" plans have changed, so no longer need a new set of cells.

BTW the 20A was an estimated max load - normally would be much less than that so the 0.2C capacity was what I was after.
by leadwings
Thu, 12 Oct 2017, 09:32
Forum: For Sale/Wanted
Topic: WTB: 90Ah (or 100Ah) Winston cells x 9
Replies: 11
Views: 1273

Re: WTB: 90Ah (or 100Ah) Winston cells x 9

I have a number of Winston & Thundersky (LYP & LFP chemistry) cells from a previous house battery bank. I also have some Sinopoly 100Ah cells the same size as the 90Ah Winston/Thundersky cells. What capacity/voltage drop at what CA rating are you looking for? T1 Terry Terry, I'm chasing some cells ...
by leadwings
Fri, 26 Aug 2016, 19:52
Forum: Members Machines
Topic: Lead Wing's BMW E30
Replies: 26
Views: 6468

Lead Wing's BMW E30

Having real trouble uploading photos today!

Image

by leadwings
Fri, 26 Aug 2016, 19:50
Forum: Members Machines
Topic: Lead Wing's BMW E30
Replies: 26
Views: 6468

Lead Wing's BMW E30

CAR UPDATE My EV has been going for 6 years now, so I thought I would post a list of the issues I have had. In general I have been very happy with the performance and reliability, and while there have been issues there have been less issues with it than our 2008 VW Passat!! (though admittedly the E...
by leadwings
Thu, 10 Nov 2011, 17:03
Forum: Members Machines
Topic: Lead Wing's BMW E30
Replies: 26
Views: 6468

Lead Wing's BMW E30

Must admit I don't exactly understand how RPM relates to power etc in a DC motor - really it seems to all relate back to the amps you are putting through. Data sheet for my motor here http://www.evmotors.com.au/products/download/fb144.pdf I drive in Perth in summer (40C) and have had no problems wit...
by leadwings
Wed, 09 Nov 2011, 22:56
Forum: Members Machines
Topic: Lead Wing's BMW E30
Replies: 26
Views: 6468

Lead Wing's BMW E30

Suspect I won;t be able to answer a lot of your questions, as I don;t have a gearbax conversion to compare it to. All I can say is it drives great. Was is the diff ratio for your donor? No idea, but standard 318i diff Top speed? Ive had it up to 120 km/hr and it was still pulling strongly. Suspect 1...
by leadwings
Fri, 29 Apr 2011, 20:00
Forum: Members Machines
Topic: Lead Wing's BMW E30
Replies: 26
Views: 6468

Lead Wing's BMW E30

Frankly I didn't do much "design" work. As I say above I had the battery boxes made by EV Works as they have to be 20g rated and have an engineer sign off on them. I am an engineer, but it's been many a year since I did any calculations! As for the rest, I was copying a pretty common drive train (45...
by leadwings
Fri, 22 Apr 2011, 00:13
Forum: Members Machines
Topic: Real-world EV Power Consumption
Replies: 8
Views: 1932

Real-world EV Power Consumption

Funny, I was about to start a thread on exactly this and then found yours. I have been measuring the perfromance from my car. I have a power meter on the power point that I charge at, and the odo from the car for km travelled. Graph is below. I am averaging between 250 and 400 Wh/km. This includes c...
by leadwings
Thu, 21 Apr 2011, 23:48
Forum: General EV Discussion
Topic: First time cheap conversion considerations.
Replies: 13
Views: 2277

First time cheap conversion considerations.

I'm don't have a favorite per se, I'll take what is available when the time comes. I'm just after a light car that looks decent. I would be a bit more selective with your donor car - if your going to put all that work in, pick something you will still want to drive in a few years. Realise you said ...
by leadwings
Thu, 21 Apr 2011, 23:43
Forum: Batteries, charging, management and monitoring
Topic: Charging Volt/Current Display
Replies: 11
Views: 1276

Charging Volt/Current Display

Oh yeah - and the swith turns it on/off, so it's not drawing current when not needed.
by leadwings
Sun, 17 Apr 2011, 20:55
Forum: Batteries, charging, management and monitoring
Topic: Charging Volt/Current Display
Replies: 11
Views: 1276

Charging Volt/Current Display

Finally got it all madeup and installed - works well. Press the little button and it switches between volts and current - handy to see the pack state of charge. Checked the voltage with my DVM and was within 0.2V, and the current with my clamp meter and it was with 0.5 of an amp. I have also stuck a...
by leadwings
Mon, 14 Mar 2011, 16:49
Forum: EV Motoring
Topic: OK Cheap DC Clamp Meter
Replies: 4
Views: 1907

OK Cheap DC Clamp Meter

Yes the auto-off can be turned off - from memory you hold the select button down when you tuarn it on.
by leadwings
Fri, 11 Mar 2011, 00:44
Forum: General EV Discussion
Topic: New bodyshells for classic roadsters and 4WDs
Replies: 7
Views: 5314

New bodyshells for classic roadsters and 4WDs

There is also aspect we probably didn't mention yet. And that's how the conversion would hold value. "Value" is a minefield - ask anyone who has undertaken a major restoration/conversion project. What you value it as will be very different to what the market will value it as. Agree a properly done ...
by leadwings
Thu, 10 Mar 2011, 18:16
Forum: EV Motoring
Topic: OK Cheap DC Clamp Meter
Replies: 4
Views: 1907

OK Cheap DC Clamp Meter

I wanted a cheap DC clamp meter to be able to get an idea of what currents were running where without disconnecting stuff etc. My car was built and up and running, so it was more a nice tool to have rather than a must have analytical tool, and being a TA I didn’t want to spend $100+ for a super accu...
by leadwings
Thu, 10 Mar 2011, 17:45
Forum: General EV Discussion
Topic: New bodyshells for classic roadsters and 4WDs
Replies: 7
Views: 5314

New bodyshells for classic roadsters and 4WDs

I looked hard for a kit car when I did my conversion - logic was fiberglass shell (light and no rust), cool body shape and often on a beetle chassis (very agricultural, but power nothing (no power steering, no vacuum brakes) and dead easy for parts/maintenance). Really wanted a Porche 356 replica, b...
by leadwings
Thu, 10 Mar 2011, 17:38
Forum: EV Motoring
Topic: Zivan Efficiency
Replies: 6
Views: 1194

Zivan Efficiency

Zivan Efficiency Test Managed to take some readings from my setup last night. I have a power meter plugged in at the 240V wall socket that measures what is coming out of the wall, then put a clamp meter on the line from the Zivan to the batteries. I run my Zivan at 10A from the wall max, so I’m not ...
by leadwings
Tue, 08 Mar 2011, 16:53
Forum: EV Motoring
Topic: Zivan Efficiency
Replies: 6
Views: 1194

Zivan Efficiency

Thanks Matt - I'm running mine at 10A max from the wall socket (just to make sure I don;t burn it out) so I guess I will be less efficient.

I should have my battery side ammeter set up soon, so can calculate the power on each side.
by leadwings
Sat, 05 Mar 2011, 00:06
Forum: EV Motoring
Topic: Zivan Efficiency
Replies: 6
Views: 1194

Zivan Efficiency

Has anyone loged their Zivan efficiency, ie kW from the mains to kW to the batteries?

From what I can tell it is around low 80%?
by leadwings
Tue, 15 Feb 2011, 01:42
Forum: Members Machines
Topic: Lead Wing's BMW E30
Replies: 26
Views: 6468

Lead Wing's BMW E30

rmlane wrote: Looks great - what was the mass change after the conversion?


Car is about 50 kg heavier than it was as a petrol car with a full tank. If I had managed to find a 6 cylinder version to convert, I reckon it would be less than 20 kg.
by leadwings
Thu, 27 Jan 2011, 18:11
Forum: Batteries, charging, management and monitoring
Topic: Charging Volt/Current Display
Replies: 11
Views: 1276

Charging Volt/Current Display

i wanted to do the same thing, i got some gauges from ebay,a box from dick smith and this is how it turned out.the other gauge is a temp gauge. i found my charger charged at a lower setting 6.4amps, now i have it set at 12.8amps and i can see when i walk pass the car what the charger is up to. i fi...
by leadwings
Thu, 27 Jan 2011, 17:59
Forum: Members Machines
Topic: Lead Wing's BMW E30
Replies: 26
Views: 6468

Lead Wing's BMW E30

this is a very nice car, very clean. did you have much trouble building the motor mounts? i was thinking of doing a direct drive with a kostov dual 9" with a soliton in either a BMW 3 serias or a Merc. i was thinking that i would just have to strip the car myself then take the car and the motor to ...
by leadwings
Thu, 27 Jan 2011, 17:48
Forum: Members Machines
Topic: Lead Wing's BMW E30
Replies: 26
Views: 6468

Lead Wing's BMW E30

a4x4kiwi wrote: I would like to do an E30 next if I can find the perfect motor. Still looking and it may take a while.


Motor I am using (Advanced DC FB-4001) works really well and matches the vehicle weight etc. Gives good performance (better acceleration than the petrol motor) even in direct drive.
by leadwings
Tue, 18 Jan 2011, 23:58
Forum: Batteries, charging, management and monitoring
Topic: Charging Volt/Current Display
Replies: 11
Views: 1276

Charging Volt/Current Display

I am not bringing this into the cabin - I actually want it under the bonnet in a box with the leads from the charger going through it, so I can see the pack voltage at any time when poking under the bonnet.

I purposefully don't want to mix LV and HV, or bing HV into the cabin.