Search found 564 matches

by 4Springs
Wed, 13 Nov 2019, 18:16
Forum: Renewable Energy and Storage (Non-EV)
Topic: 4Springs' Home Battery Storage System
Replies: 15
Views: 2051

Re: 4Springs' Home Battery Storage System

SP Pro inverter/charger is in! IMG_20191112_130207146.jpg Installation took two electricians about 4 hours. We set it up with a Wizard which had an option for 16 LiFePO cells. This set quite intelligent values into the unit, which gives me a good place to start. The BMS is monitoring the cells, but ...
by 4Springs
Thu, 31 Oct 2019, 18:06
Forum: General EV Discussion
Topic: AEVA Sydney EV Expo and AGM
Replies: 3
Views: 281

Re: AEVA Sydney EV Expo and AGM

We need photos!
by 4Springs
Tue, 22 Oct 2019, 17:02
Forum: Renewable Energy and Storage (Non-EV)
Topic: AGM for home storage?
Replies: 6
Views: 322

Re: AGM for home storage?

Today I was just googling around and bumped into this AGM battery bank . And it's a lot under the price of a powerwall. But obviously it doesn't come with any BMS or inverter. And yes I'm aware that I'd need to keep the discharge to 50% for any real cycle life. A lot of the year our house uses just...
by 4Springs
Tue, 22 Oct 2019, 16:48
Forum: Technical and conversion discussion
Topic: EV Sticker for Number Plates
Replies: 56
Views: 8884

Re: EV Sticker for Number Plates

Interestingly (owning 3 EVs), I only received one set of stickers (for the Leaf). Nothing for the other 2. I wonder how accurate their records are... or were they were overwhelmed by so many EVs on their records that they had to send the sticker out in several batches? 😆 The new requirements are on...
by 4Springs
Fri, 11 Oct 2019, 18:03
Forum: Mitsubishi
Topic: 2020 Outlander PHEV
Replies: 4
Views: 315

Re: 2020 Outlander PHEV

coulomb wrote:
Fri, 11 Oct 2019, 07:45
A friend recently paid a deposit on a 2020 Outlander PHEV. It seems that they are claiming some 100 km of all-electric range.
So, based on the the claims made for the previous model, 60 km real world electric range. Perhaps 80 if you're going downhill.
by 4Springs
Sun, 06 Oct 2019, 05:07
Forum: Technical and conversion discussion
Topic: EV Sticker for Number Plates
Replies: 56
Views: 8884

Re: EV Sticker for Number Plates

This thread started in Feb 2013, now Oct 2019 and in all this time no one asked the ONE obvious question... WTF ??? I just bought a Kona and just found out totally by accident that my number plates are incomplete to the point where I could get a fine ??? I'm on the phone to Hyundai Monday morning t...
by 4Springs
Sat, 05 Oct 2019, 06:10
Forum: Renewable Energy and Storage (Non-EV)
Topic: 4Springs' Home Battery Storage System
Replies: 15
Views: 2051

Re: 4Springs' Home Battery Storage System

Is there room for more cells in that space or will you settle for the 22 kWh? Ah, you noticed that space, did you? The first design was just enough space for these cells. But a big cupboard shouldn't be much more expensive than a little one when it is being built locally, so I increased the size to...
by 4Springs
Fri, 04 Oct 2019, 18:49
Forum: Renewable Energy and Storage (Non-EV)
Topic: 4Springs' Home Battery Storage System
Replies: 15
Views: 2051

Re: 4Springs' Home Battery Storage System

If I'm doing a grid-connect system then I need a good battery box. I decided that I don't have enough time to make one myself, and do have enough money to have one made. So this is what I came up with: IMG_20190922_154736387.jpg IMG_20190923_164943686_HDR.jpg Made by a local sheet metal fabricator. ...
by 4Springs
Fri, 04 Oct 2019, 18:20
Forum: Renewable Energy and Storage (Non-EV)
Topic: 4Springs' Home Battery Storage System
Replies: 15
Views: 2051

Re: 4Springs' Home Battery Storage System

A year later, and a fair bit has happened. The most important thing is that I found an electrician who is willing to work with my 'home made' battery. This means that I can use the battery in a grid-connect system. I had previously thought that I'd be limited to a UPS style system since I'm not an e...
by 4Springs
Sat, 31 Aug 2019, 06:18
Forum: Members Machines
Topic: 4Springs' Brumby
Replies: 223
Views: 40148

Re: 4Springs' Brumby

francisco.shi wrote:
Wed, 14 Aug 2019, 05:53
From what I have read up you need around 10psi minimum pressure to keep the cells from expanding during operation. That is about 270kg per pouch. I do not think 25kg extra will make much difference.
Wow - that is much more pressure than I had thought was required. Do you have a source for that?
by 4Springs
Sat, 31 Aug 2019, 06:16
Forum: Members Machines
Topic: 4Springs' Brumby
Replies: 223
Views: 40148

Re: 4Springs' Brumby

Do you put a few batteries where the fuel tank was? I believe it is under the tray where your current rear batteries are and quite well protected. The fuel tank was underneath the tray at the rear. I am using that space now for the chargers. The original battery design (lead-acid) had two battery b...
by 4Springs
Sat, 31 Aug 2019, 06:01
Forum: General EV Discussion
Topic: How to tell a kilowatt hour from a kelvin week henry
Replies: 25
Views: 1676

Re: How to tell a kilowatt hour from a kelvin week henry

I sometimes talk about the odometer on my car saying things like "It's done 60k km" I guess that is 60 Mm ? Like this post back in 2011: https://forums.aeva.asn.au/viewtopic.php?p=30690#p30690 Now I look at that post, I note that I didn't put spaces between the numbers and the symbols. Started out ...
by 4Springs
Sat, 31 Aug 2019, 05:47
Forum: Renewable Energy and Storage (Non-EV)
Topic: 3 phase supply but no 415v connections
Replies: 20
Views: 720

Re: 3 phase supply but no 415v connections

brendon_m wrote:
Fri, 30 Aug 2019, 21:48
Scrap that, I have maximum dardiness.
Screenshot at 2019-08-31 07-45-22.png
Screenshot at 2019-08-31 07-45-22.png (23.22 KiB) Viewed 670 times
by 4Springs
Sat, 17 Aug 2019, 06:12
Forum: General EV Discussion
Topic: Regenerative braking effect compared to traditional braking?
Replies: 6
Views: 620

Re: Regenerative braking effect compared to traditional braking?

This is interesting. I assume that regen cannot lock the wheels. This is because the retarding force is only applied when the motor is moving, and it gets less the slower the motor goes. If the wheels locked up then the motor would be stationary, and the regen wouldn't work. A sort of natural ABS. I...
by 4Springs
Tue, 13 Aug 2019, 18:38
Forum: Members Machines
Topic: 4Springs' Brumby
Replies: 223
Views: 40148

Re: 4Springs' Brumby

For the back box could you rotate the cells so they are flat on the 310mm? That would fit the 137mm perfectly. Then either put more cells in the back box and less at the front or make the back box smaller. I would also keep the cells all together. The gap in the middle will make it really messy to ...
by 4Springs
Mon, 12 Aug 2019, 19:16
Forum: Members Machines
Topic: 4Springs' Brumby
Replies: 223
Views: 40148

Re: 4Springs' Brumby

How am I going to connect these cells together? Francisco has posted a picture of how he has done it: Francisco_Al.png His cells are three in parallel. What you can see here is three cells connected to the left side of an aluminium block, then the next three cells connected to the right side of the ...
by 4Springs
Mon, 12 Aug 2019, 18:41
Forum: Members Machines
Topic: 4Springs' Brumby
Replies: 223
Views: 40148

Re: 4Springs' Brumby

The front two boxes are identical, and they will need to be re-made. They will be a bit longer in length and a bit shorter in height. Making new boxes means that the swap-over can be relatively quick, so the car will be off the road for a minimum of time. Front_Box.png These front boxes will be rela...
by 4Springs
Mon, 12 Aug 2019, 18:23
Forum: Members Machines
Topic: 4Springs' Brumby
Replies: 223
Views: 40148

Re: 4Springs' Brumby

The Brumby is still going well, but I'm thinking it might be time for a battery upgrade. The target range for this lithium (LFP)pack was 80km. My very first test took me just over 100km, in summer, fairly slow stop/start driving. That made the 80km target achievable under most conditions. The batter...
by 4Springs
Sat, 10 Aug 2019, 18:47
Forum: Technical and conversion discussion
Topic: Starting to research vintage Mazda conversion. Help appreciated.
Replies: 21
Views: 847

Re: Starting to research vintage Mazda conversion. Help appreciated.

As for motors, the links above have been useful, but is AC not a better system because it is easier to get regen happening, Of course along with a premium price? If you want regen you want AC. Do you want regen though? Depends on your roads and driving style. If you have lots of hills then you want...
by 4Springs
Fri, 09 Aug 2019, 18:41
Forum: Scooters, mopeds and electric toys
Topic: Are hybrid bikes worth the money?
Replies: 7
Views: 559

Re: Are hybrid bikes worth the money?

I've used a hybrid bike for about 10 years. Almost all on the paved road. The paved road here can be a bit gravelly some times, so the slightly wider tyres are useful. I blew out two tyres in the first month, then none for about 7 years, then two in about a year. I'm assuming that a pure road bike w...
by 4Springs
Mon, 05 Aug 2019, 15:43
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 506
Views: 35577

Re: Prelude conversion project - some questions

Ah, you're taking me back to that summer when I moved the charger from under the bonnet to under the tray where the fuel tank used to be. It's really nice to work on under there, lie on the ground and it's all laid out in front of me. I had enough room to add a second charger I had lying around, and...
by 4Springs
Sat, 27 Jul 2019, 07:42
Forum: Batteries, charging, management and monitoring
Topic: E63 LG 63Ah NCM battery group buy
Replies: 32
Views: 2622

Re: E63 LG 63Ah NCM battery group buy

Ah, now I see. The boards are basically soldered onto the nuts, then there is another piece of flat aluminium to take the pressure against the clamp. A very neat way to do it. They are round nuts though, so you can't put a spanner on them to tighten against. You're tightening the bolt against your s...
by 4Springs
Thu, 25 Jul 2019, 16:10
Forum: Batteries, charging, management and monitoring
Topic: E63 LG 63Ah NCM battery group buy
Replies: 32
Views: 2622

Re: E63 LG 63Ah NCM battery group buy

So I've just measured up my battery boxes, and they look like they would suit these cells. 5p 40s would theoretically fit, and would give me 47kWh with a 20kg weight increase over my current 20kWh pack. 4p 41s would fit with a lot more room to spare, and would give me 38kWh with a 20kg weight decrea...
by 4Springs
Wed, 24 Jul 2019, 19:31
Forum: Batteries, charging, management and monitoring
Topic: E63 LG 63Ah NCM battery group buy
Replies: 32
Views: 2622

Re: E63 LG 63Ah NCM battery group buy

Assembling the pack with the water cooling system and pouch clamping hardware is a little difficult. You need a special jig to hold everything in place while you assemble it. How necessary would the water cooling be? I'd assume that the NCM cells would be at least as good as LFP for internal resist...
by 4Springs
Wed, 24 Jul 2019, 16:28
Forum: Batteries, charging, management and monitoring
Topic: E63 LG 63Ah NCM battery group buy
Replies: 32
Views: 2622

Re: E63 LG 63Ah NCM battery group buy

It looks like you have three cells in parallel in each clamp? Or could you fit more? I'm thinking of 4 or 5 in parallel. What are the overall dimensions including the clamping hardware? I have one long battery box (in the back) and two short ones (in the front, for weight distribution). I think the ...