Search found 933 matches

by T1 Terry
Tue, 28 May 2019, 15:41
Forum: Renewable Energy and Storage (Non-EV)
Topic: Offgrid solar project
Replies: 65
Views: 2395

Re: Offgrid solar project

Unfortunately no one has come up with a staged output parallel inverter set up, so the very light loads are spread across all the paralleled inverters making the delivery efficiency very poor at light loads. I've been trying to get the professor (at one of the Chinese factories my China contact has ...
by T1 Terry
Mon, 27 May 2019, 15:52
Forum: Tesla EVs
Topic: Tesla Model 3 - APPROVED by Australian Governing body for Sale
Replies: 2
Views: 259

Re: Tesla Model 3 - APPROVED by Australian Governing body for Sale

Now to see the price. I believe the quoted price was some where around the $78,000 mark when the AUD was at 75c to the USD. Now we are battling to hold 69cents to the USD the price might be well out of the range of most people.

T1 Terry
by T1 Terry
Thu, 23 May 2019, 14:40
Forum: Renewable Energy and Storage (Non-EV)
Topic: Offgrid solar project
Replies: 65
Views: 2395

Re: Offgrid solar project

Normally I suggest all cells are parallel first then those put in series to a make a string. So LTO/LiFePO4/Lipo all have different voltages so this is not possible. A series of small LTO performance cells then in parallel with a large general pack of LiFePO4 may end up "balanced". So 10A draw woul...
by T1 Terry
Thu, 23 May 2019, 10:04
Forum: Renewable Energy and Storage (Non-EV)
Topic: Offgrid solar project
Replies: 65
Views: 2395

Re: Offgrid solar project

If you needed a bigger battery pack, why wouldn't you add cells in parallel to the existing LTO pack? Are the different to LFP/LYP cells in a way you can't mix old with new?

T1 Terry
by T1 Terry
Mon, 20 May 2019, 15:37
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 68
Views: 4137

Re: EOI - New Yinlong LTO cells Australia

I can't see a sudden loss of capacity happening in the next 10 yrs that would render the cells unsuitable for the job Don't confuse calendar life with cycle life. Dendritic action I believe. So the cell WILL just "die" one day even though yesterday it had 90-100% of the claimed capacity. MTBF ~10 y...
by T1 Terry
Thu, 16 May 2019, 12:55
Forum: Renewable Energy and Storage (Non-EV)
Topic: Is anyone using an arc welder with an offgrid system
Replies: 104
Views: 3424

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

I wonder is the LCD display can be removed from the unit metal cover and the leads extended using Cat spec cable or similar. Possibly they have a device to output the information to the Ethernet or Bluetooth, depending how far away from the device you need to access the information. The PIP units ha...
by T1 Terry
Thu, 16 May 2019, 12:46
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 68
Views: 4137

Re: EOI - New Yinlong LTO cells Australia

Our longest running house power RV battery packs are just over 8 yrs old and test at 100% capacity using the same 0.5CA capacity testing Winston use according to their specs books that come with the cells. ... It will be interesting to see just how long these systems will maintain their 100% of the...
by T1 Terry
Tue, 14 May 2019, 15:20
Forum: Renewable Energy and Storage (Non-EV)
Topic: Is anyone using an arc welder with an offgrid system
Replies: 104
Views: 3424

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

Thanks Dave, looks like I'll have to stick with the PIP units and their heavier standby current. The PIP does have that ECO mode as well, but it just causes havoc with anything that uses a digital clock and the start up test current for a few of the freezers isn't enough to wake up the sleeping inve...
by T1 Terry
Tue, 14 May 2019, 13:42
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 68
Views: 4137

Re: EOI - New Yinlong LTO cells Australia

I'm assuming the 10 yrs is calendar age and not used cycle life. How many cycles do you think you got out of the 40 Ah Sky Energy LFP cells? Probably only 500 cycles. 700 at the most. I think most of the ageing has been due to time and temperature. They spent the first 3.5 years of their life on a ...
by T1 Terry
Tue, 14 May 2019, 12:31
Forum: Renewable Energy and Storage (Non-EV)
Topic: Is anyone using an arc welder with an offgrid system
Replies: 104
Views: 3424

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

Hi Dave, do you know if the SUMRY 5kva inverter you have can be paralleled with another SUMRY 5kva inverter? I have used the PIP 40/24MSP inverters in parallel with great success, but the standby current is greater than the standby current you appear to have with the SUMRY unit. I have also used the...
by T1 Terry
Wed, 24 Apr 2019, 18:54
Forum: Renewable Energy and Storage (Non-EV)
Topic: jonescg's home battery storage system
Replies: 30
Views: 4162

Re: jonescg's home battery storage system

Hmmmm...... If I'd known that was the price, I would have bought it while we were over there and found a spot in the Hino some where so we could bring them home. Freight would probably make it prohibitive now, the premium on shipping lithium batteries is the killer.

T1 Terry
by T1 Terry
Tue, 23 Apr 2019, 13:48
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 428
Views: 27892

Re: Prelude conversion project - some questions

The hose fittings were all available from an engineering mob is outer western Sydney back when I was doing engine transplants in various vehicles. They could make up any combination of pipe sizes, angles and 2, 3 or 4 way fittings, all machined out of brass and not very expensive. No idea if the mob...
by T1 Terry
Wed, 17 Apr 2019, 17:16
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 68
Views: 4137

Re: EOI - New Yinlong LTO cells Australia

the remaining $10 930, which had meanwhile been earning interest. At the current rate, maybe enough to go for dinner to celebrate ..... at the Scottish restaurant :lol: I'm assuming the 10 yrs is calendar age and not used cycle life. How many cycles do you think you got out of the 40 Ah Sky Energy ...
by T1 Terry
Wed, 17 Apr 2019, 14:46
Forum: Charging Infrastructure
Topic: Newbie question about practicalities of charging and range
Replies: 33
Views: 1406

Re: Newbie question about practicalities of charging and range

As far as the country area fast charging, are they on the grid or stand alone? I thought about this on my last trip to WA and back, a lot of gaps between the power poles out there. What I did see were a lot of solar arrays appearing at each servo. These servo's sort of double as the town store/pub/m...
by T1 Terry
Tue, 16 Apr 2019, 10:32
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 68
Views: 4137

Re: EOI - New Yinlong LTO cells Australia

You have to have faith Richard :lol: LTO shalt inherit the major market share .... well, until the next greatest thing comes along anyway. Could it be the new solid state batteries? As far as price comparison, we all had to take the LFP chemistry on faith that it would out perform and out last lead ...
by T1 Terry
Mon, 15 Apr 2019, 11:45
Forum: Members Machines
Topic: Damon’s Fiat 500e project
Replies: 73
Views: 9202

Re: Damon’s Fiat 500e project

I'm sure if you had a photo display of just how much effort you put into that conversion, those complaining would soon shut up. After all, their conversion was once a factory built vehicle once ..... I'm guessing they didn't realise just how much work went into building such a great conversion, it r...
by T1 Terry
Sat, 13 Apr 2019, 15:44
Forum: Renewable Energy and Storage (Non-EV)
Topic: Is anyone using an arc welder with an offgrid system
Replies: 104
Views: 3424

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

Never heard of the MUST inverters so no information or experience with them. The Projecta intelligent inverter checks the incoming 240vac wave form to ensure it is clean and the correct frequency and voltage. It will test load it and see if it can supply the required load while maintaining the clean...
by T1 Terry
Sat, 13 Apr 2019, 13:37
Forum: Renewable Energy and Storage (Non-EV)
Topic: Is anyone using an arc welder with an offgrid system
Replies: 104
Views: 3424

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

One solution may be to use a smaller inverter with an auto switch through when a stable 240vac supply is sensed on the mains input. That way all the low power devices can run on the smaller more efficient inverter and the bigger draw items powered by the big mother inverter as well as a supply to th...
by T1 Terry
Sat, 13 Apr 2019, 13:14
Forum: Members Machines
Topic: Damon’s Fiat 500e project
Replies: 73
Views: 9202

Re: Damon’s Fiat 500e project

What's the story with the ribbons? A very tidy conversion and the addition of the sway bar would have improved the handling quite a bit. I really notice the difference between my wife's ex taxi Prius and mine with the body stiffener braces and better sway bars. A real credit to you, had any one requ...
by T1 Terry
Wed, 10 Apr 2019, 07:54
Forum: Renewable Energy and Storage (Non-EV)
Topic: Is anyone using an arc welder with an offgrid system
Replies: 104
Views: 3424

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

The BMS we use for systems we install as off grid and grid back up. These go in houses, houseboats, caravans and motorhomes. We don't really sell them as a separate item usually, but if you go to the T1 Lithium web site I think Margaret (my wife and her business) could have some information and phot...
by T1 Terry
Tue, 09 Apr 2019, 16:08
Forum: Renault
Topic: First Zoe Service!
Replies: 27
Views: 1413

Re: First Zoe Service!

My two Priuses both showed all sorts of strange codes that ended up being the fault of the 12v battery. I replaced both of them with well used LFP 4 cell batteries and they haven't had a problem since. Ask around for some exhausted 40Ah EV cells and give them some gentle reconditioning charging and ...
by T1 Terry
Tue, 09 Apr 2019, 16:01
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 332674

Re: Weber and Coulomb's MX-5

wovenrovings wrote:
Mon, 08 Apr 2019, 18:25
I have 3 of those 40Ah Sky Energy cells if you want them. I check their voltage but they should be at about 3.2V. Haven't used them since the 4th one in the set died.
If Weber doesn't want them I'll put my hand up for them. They make great replacement 12v aux batteries for the Prius.

T1 Terry
by T1 Terry
Tue, 09 Apr 2019, 15:55
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 428
Views: 27892

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 T1 Terry
Tue, 09 Apr 2019, 15:50
Forum: Renewable Energy and Storage (Non-EV)
Topic: Is anyone using an arc welder with an offgrid system
Replies: 104
Views: 3424

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

One of the off grid house setups we did powers a stick welder from a 2440 MPP solar inverter supported by 600Ah @ 24v of Winston lithium cells.. . .. T1 Terry 2440 or 4024 ? What was the exact and complete reference please. PIP-4024 ?? You say you are on lithium WINTSON cells, so I guess LiFePO4, i...
by T1 Terry
Tue, 09 Apr 2019, 12:39
Forum: Renewable Energy and Storage (Non-EV)
Topic: Is anyone using an arc welder with an offgrid system
Replies: 104
Views: 3424

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

One of the off grid house setups we did powers a stick welder from a 2440 MPP solar inverter supported by 600Ah @ 24v of Winston lithium cells. It has been doing this for a few yrs now. We had another set up that had a main board fail. It was an intermittent failure, sometimes it would run for days,...