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by Richo
Yesterday, 13:01
Forum: Charging Infrastructure
Topic: Newbie question about practicalities of charging and range
Replies: 32
Views: 250

Re: Newbie question about practicalities of charging and range

The EV owner would pay a monthly fee to lease a battery, and then simply drive in to a service station and have it replaced rather than recharged, much the same way that LPG bottles are used. Yeah it was called "project better place". Epic fail. If ev's were common place with replaceable packs - ie...
by Richo
Yesterday, 12:35
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 21
Views: 180

Re: Soyachips’ Electric FZR250

The cost I’ve used for the Leaf batteries is probably way too low as I can’t even find any in Australia! Yeah I bought leaf cells for my Handi and shortly after the market dried up. Barring a few on fleabay at unrealistic prices. Don't forget that the leaf cells are 2nd hand. This is why this threa...
by Richo
Tue, 23 Apr 2019, 12:48
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 21
Views: 180

Re: Soyachips’ Electric FZR250

Is this right? 30 cells x 2.3V = 69V x 40Ah = 2.76kWh x 0.8 DOD = 2.208kWh / 88Wh per km = 25km Yep for the most part. The nominal for an LTO is usually 2.4V so 69V becomes 72V. I did see they claimed 2.3V - not too sure why. Just as a rule of thumb since it exists and are claiming it. https://www....
by Richo
Thu, 18 Apr 2019, 13:13
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 21
Views: 180

Re: Soyachips’ Electric FZR250

Headways will cost 20% more than LTO's.
by Richo
Thu, 18 Apr 2019, 13:05
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 21
Views: 180

Re: Soyachips’ Electric FZR250

All sounds very nice :mrgreen: So max is about 24 LiFePO4, 32 LTO, 6 SLA. The motor seems to be rated to 12kW peak, the controller more. So 20Ah minimum or >1.5kWh https://www.aliexpress.com/item/30pcs-20000-Cycles-2-3v-30ah-35ah-40ah-66160-LTO-2-4v-Lithium-Titanium-Oxide-Battery/32979869826.html Th...
by Richo
Thu, 18 Apr 2019, 12:37
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 41
Views: 1271

Re: EOI - New Yinlong LTO cells Australia

weber wrote:
Wed, 17 Apr 2019, 19:50
Badly underestimated how long it would take to finish the car.
:( My projects seem to work on LIFO.
So the car ends up basically last.
:(
by Richo
Wed, 17 Apr 2019, 12:29
Forum: Nissan Leaf
Topic: 2018 Nissan Leaf!
Replies: 29
Views: 8560

Re: 2018 Nissan Leaf!

Any links about that announcement?
TBH even $9,500 is worth buying one for conversions.
I'm assuming you're referring to the 24kWh packs.
by Richo
Tue, 16 Apr 2019, 12:39
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 41
Views: 1271

Re: EOI - New Yinlong LTO cells Australia

Richo wrote:
Mon, 15 Apr 2019, 13:02
And I doubt Yinlong would be in the same class as either of the above - so half ?!? 10-12 years
Well seems I'm WRONG
Yinlong bought out Altair Nanotechnologies in 2011.
https://www.electrive.com/tag/zhuhai-yinlong-energy/
by Richo
Tue, 16 Apr 2019, 09:45
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 41
Views: 1271

Re: EOI - New Yinlong LTO cells Australia

https://www.aliexpress.com/item/24pcs-LTO-2-4V-60AH-LTO-Baterie-2-3v-60Ah-6C-15C-Discharge-for-DIY-48v/32970087050.html These are claiming 25 years. Its even in bold :roll: 6C/15C 30,000cycles 25 years. (3cycles per day for 25 years) Price is on par with headway cells. Given its double life span th...
by Richo
Mon, 15 Apr 2019, 13:02
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 41
Views: 1271

Re: EOI - New Yinlong LTO cells Australia

.. the shelf life of the [LTO] battery won't be much better than any other battery. Hi Richo. Can you tell us why you think that? I've been searching, and I can find precious little about the calendar life of LTOs. Well the only one stating calendar life is Altair-nano. https://altairnano.com/produ...
by Richo
Wed, 10 Apr 2019, 12:54
Forum: Renewable Energy and Storage (Non-EV)
Topic: Is anyone using an arc welder with an offgrid system
Replies: 23
Views: 429

Re: Is anyone using an arc welder with an offgrid system

Sorry if this is not the right place for my question. Is there anything bigger to make it "like for like" so around 22kVA going off grid? I'm sure there is a limit on what western power provide as 3-phase to a residential house. Even with 3 separate circuits this is still 10kVA per inverter. Double ...
by Richo
Tue, 09 Apr 2019, 13:04
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 250
Views: 15919

Re: Prelude conversion project - some questions

... everything will be operational through the OR gate, including pumps, fans, relays etc. So that calls for a fairly hefty PAIR of diodes. We use a tunnel heatsink with a fan and 2 thermostats to keep 2 x 100 amp DC solid state relays cool A solid state relay is overkill in this case as bidirectio...
by Richo
Fri, 05 Apr 2019, 12:58
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 250
Views: 15919

Re: Prelude conversion project - some questions

francisco.shi wrote:
Thu, 04 Apr 2019, 12:33
2 10A diodes in parallel do not give you 20A capacity.
I'm still trying to get my head around why the diodes are wanted in the first place.
5A=5W
10A=10W
Are they for an in-dash auxiliary heater

I'm just saying...
by Richo
Fri, 05 Apr 2019, 12:37
Forum: Technical and conversion discussion
Topic: Hot rod EV - looking for advice.
Replies: 31
Views: 652

Re: Hot rod EV - looking for advice.

The original engine + gearbox is around 300kg, less fuel tank and ICE support systems (85kg nom.) the weight is around 1,000kg. It has a GVM of 2,130kg so less passengers and manditory chassis alterations I've got probably 850kg for the full EV system. (Remembering this will never be used as a ute,...
by Richo
Fri, 05 Apr 2019, 12:35
Forum: Technical and conversion discussion
Topic: Hot rod EV - looking for advice.
Replies: 31
Views: 652

Re: Hot rod EV - looking for advice.

... I was going to run an LS-series V8 so would be looking for performance similar to a VF SS Commodore. They are 304kW / 570Nm with 0-100 of 4.5sec. They are heavy, 1750kg, meaning 5.75kg/kW and 3.07kg/Nm. Excellent - that is something I can work towards. Any ideas what your car might weigh stock ...
by Richo
Fri, 05 Apr 2019, 12:25
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 41
Views: 1271

Re: EOI - New Yinlong LTO cells Australia

So https://www.aliexpress.com/ has some 2.4V 40Ah LTO Yinlong back in stock.
This is the ID number: 32983251937
Works out to about AUD$70 per cell delivered.
Looks like they have already sold quite a bit in the past week.
They do mention about shipping difficulties in the description.
by Richo
Thu, 04 Apr 2019, 13:10
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 41
Views: 1271

Re: EOI - New Yinlong LTO cells Australia

Can these cells really handle 15000 cycles with a 2CA/2CA charge discharge regime? Well that is conservative for an LTO. Just remember that the shelf life of the battery won't be much better than any other battery. For av eV 4,000 cycles is plenty after that the rest go down the drain... But as you...
by Richo
Thu, 04 Apr 2019, 12:53
Forum: Technical and conversion discussion
Topic: Hot rod EV - looking for advice.
Replies: 31
Views: 652

Re: Hot rod EV - looking for advice.

... I'm guessing power is less of an issue for EV's? Well no power is power weather its from electrons or petrol. You could put in a 60kW electric motor direct drive and it would drive ok be simple and reliable. You know all show and no go... But if you want to drag a Tesla off down the strip you'l...
by Richo
Wed, 03 Apr 2019, 13:04
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 41
Views: 1271

Re: EOI - New Yinlong LTO cells Australia

weber wrote:
Tue, 02 Apr 2019, 14:22
And I could paint the word "capacitor" on my cat. :)
Would you wash your cat after or let it lick the paint?
Just asking :lol:
by Richo
Wed, 03 Apr 2019, 12:58
Forum: Technical and conversion discussion
Topic: Hot rod EV - looking for advice.
Replies: 31
Views: 652

Re: Hot rod EV - looking for advice.

blwnhr wrote:
Wed, 03 Apr 2019, 04:13
What happens in the middle?
Well I expect that is where you are driving :lol:
by Richo
Wed, 03 Apr 2019, 12:53
Forum: Technical and conversion discussion
Topic: Hot rod EV - looking for advice.
Replies: 31
Views: 652

Re: Hot rod EV - looking for advice.

blwnhr wrote:
Tue, 02 Apr 2019, 17:35
... after seeing this at SEMA.
Well the details were a bit generic on that link - but I did find this:
https://electrek.co/2018/10/31/1949-mer ... owertrain/
So it runs direct drive - no transmission.

Did you have a target kW?
by Richo
Wed, 03 Apr 2019, 12:42
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 41
Views: 1271

Re: EOI - New Yinlong LTO cells Australia

And I could paint the word "capacitor" on my cat. :) I sooo want to see that. :lol: I think you're confusing a law of Australia with a law of logic or physics. There don't have to be any super capacitors in the box. Sure they do it's printed on the box and your cat ;) False or misleading claims, fa...
by Richo
Tue, 02 Apr 2019, 12:58
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 41
Views: 1271

Re: EOI - New Yinlong LTO cells Australia

Okay but the box, even the burnt ones, says capacitor. Did Arvio actually claim/admit somewhere they are really ALL LTO's or are we still basing it on our assumptions? So to my way of thinking Terry is asking about the safety of LTO's but referencing it to an incident that is a capacitor module. Giv...