Search found 889 matches

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: 96
Views: 2276

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: 1123

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: 323361

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: 337
Views: 22317

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: 96
Views: 2276

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: 96
Views: 2276

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,...
by T1 Terry
Tue, 09 Apr 2019, 12:12
Forum: Technical and conversion discussion
Topic: Bus Conversions - a Reality
Replies: 5
Views: 1083

Re: Bus Conversions - a Reality

Drop me a PM and we can go from there.

T1 Terry
by T1 Terry
Fri, 05 Apr 2019, 14:11
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 337
Views: 22317

Re: Prelude conversion project - some questions

I'm guessing the diode pr are Schottky diodes. We use these quite a bit running around 40 amps through them and they do require the heatsink to dissipate the waste heat. We use a tunnel heatsink with a fan and 2 thermostats to keep 2 x 100 amp DC solid state relays cool and happy so we already had t...
by T1 Terry
Fri, 05 Apr 2019, 11:09
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 68
Views: 3150

Re: EOI - New Yinlong LTO cells Australia

4,000 cycles would be every day for 10yrs, but as you say, a hybrid would benefit more because they are continually high current charging and discharging. To get the 2CA would require 70 Ah capacity, so 2 x 40Ah in parallel x 110 to build a 250v nom. battery. 220 cells x $84.80 = $18,656 ..... back ...
by T1 Terry
Thu, 04 Apr 2019, 09:08
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 68
Views: 3150

Re: EOI - New Yinlong LTO cells Australia

In anycase - back on topic - I did find a youtube video of Yinlong doing destructive tests on thier LTO battery. Bit of a let down - no bangs, or balls of fire. https://www.youtube.com/watch?v=eAUYbSDEy6I In that video they show a cycle life test, but there are 2 different charge/discharge regimes ...
by T1 Terry
Wed, 03 Apr 2019, 11:33
Forum: For Sale/Wanted
Topic: Tesla for sale 30k jeg in gumtree
Replies: 20
Views: 1153

Re: Tesla for sale 30k jeg in gumtree

Sounds bizarre to me, lots of vehicles can get written off for basically cosmetic (but expensive) damage, especially as they get older. Also means the roadworthiness of cars is defined by there insurance cover - eg if it is not insured, it can't get written off, therefore it can be repaired? Only w...
by T1 Terry
Fri, 29 Mar 2019, 14:50
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 68
Views: 3150

Re: EOI - New Yinlong LTO cells Australia

https://powerforum.co.za/uploads/monthly_2018_09/after.jpg.4ac5c769f462582af40a7e5a015bfcef.jpg Was it ever determined just what chemistry batteries were in these things? They use LTO cells for pacemakers and nerve stimulators to relieve chronic pain, so I doubt they'd use something that went off q...
by T1 Terry
Fri, 29 Mar 2019, 09:20
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 68
Views: 3150

Re: EOI - New Yinlong LTO cells Australia

As a matter of interest on the safety side, is the chemistry of these cells as safe as the LFP and LYP chemistries in regards to explosion/fire? The last thing I'd want is a battery pack doing the Daisy Death thing https://www.youtube.com/watch?v=of01p0Q-yUM . If something failed in the cell managem...
by T1 Terry
Sat, 23 Mar 2019, 07:54
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 68
Views: 3150

Re: EOI - New Yinlong LTO cells Australia

I think they would be excellent as a replacement battery pack for the series 2 Prius Finally we have a use! what the battery's or the Prius? HAHAHAHA Mean and nasty people :lol: Still love both my series 2 Priuses or Pri or what every the term is these days. If I can modify them to tow behind a mot...
by T1 Terry
Thu, 21 Mar 2019, 10:23
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 68
Views: 3150

Re: EOI - New Yinlong LTO cells Australia

I think they would be excellent as a replacement battery pack for the series 2 Prius to extend the all electric and greatly extend the mixed mode range. The issue with LiFe cells is the high charge rate the regen pumps out, often seen as high as 180 amps on the scan gauge. That is a 4.5CA charge rat...
by T1 Terry
Tue, 12 Mar 2019, 11:49
Forum: Nissan Leaf
Topic: 2018 Nissan Leaf!
Replies: 31
Views: 9368

Re: 2018 Nissan Leaf!

The best thing the Australian prospective EV buying public can do is delay buying a price gouged 40Kw EV (of any brand) until the Global standard 60Kw battery versions are introduced to Australia at a realistic price! The problem with that approach is all companies these days are controlled by the ...
by T1 Terry
Wed, 06 Mar 2019, 11:24
Forum: Technical and conversion discussion
Topic: Lead acid to lithium conversion
Replies: 65
Views: 2866

Re: Lead acid to lithium conversion

Thanks for that, back to the big wheeled forklift. It seems the battery forklifts are all the small solid tyre type and I doubt they would be any good on the gravel driveway. I'll go back to my original search.

T1 Terry
by T1 Terry
Wed, 06 Mar 2019, 10:26
Forum: The Lounge
Topic: Hybrid drive caravan?
Replies: 7
Views: 537

Re: Hybrid drive caravan?

Weight would be the problem with a big caravan battery. a lot of our work comes from people who need to reduce their van weight by pulling out the lead acid batteries and installing lithium batteries. from there the inverter ends up getting upgraded and then the solar and in the end they have the ab...
by T1 Terry
Tue, 05 Mar 2019, 14:09
Forum: Technical and conversion discussion
Topic: Lead acid to lithium conversion
Replies: 65
Views: 2866

Re: Lead acid to lithium conversion

Í just need something to push caravans into the workshop to do the solar and battery install and then drag it back out. We used a one wheel caravan mover for a while but its steering gearbox tore the teeth off the gears with a rather front heavy van and now requires kick steering. The other issue is...
by T1 Terry
Tue, 05 Mar 2019, 14:02
Forum: The Lounge
Topic: Hybrid drive caravan?
Replies: 7
Views: 537

Re: Hybrid drive caravan?

Yes, as far as I understand it the caravan would become a driverless vehicle and at the moment that isn't legal, the vehicle may be able to drive without the driver input but there must be a licenced driver behind the controls to take over if things went pear shaped. Adding the lack of actual steeri...
by T1 Terry
Mon, 04 Mar 2019, 12:05
Forum: Technical and conversion discussion
Topic: Lead acid to lithium conversion
Replies: 65
Views: 2866

Re: Lead acid to lithium conversion

Do you think one of these beasts could push a 3 tonne caravan into a workshop on flat level ground? Buying one with an exhausted battery and repowering it would make a great workshop tractor if it could push/pull that sort of weight.

T1 Terry
by T1 Terry
Mon, 04 Mar 2019, 12:01
Forum: The Lounge
Topic: Hybrid drive caravan?
Replies: 7
Views: 537

Re: Hybrid drive caravan?

I'd much prefer a hybrid drive motorhome towing an electric vehicle or hybrid that I could control from the drivers seat. It would give the advantage of sharing the drive and increasing the regen braking. With the towed vehicle driving itself up the hills and taking care of its own weight with regen...
by T1 Terry
Sat, 02 Mar 2019, 14:05
Forum: The Lounge
Topic: Hybrid drive caravan?
Replies: 7
Views: 537

Hybrid drive caravan?

The was a link to this article on another forum I frequent and it has me thinking, is it legal and if it is, could a range extender trailer be built that could drive itself while extending the range of the tow vehicle? https://www.caravancampingsales.com.au/editorial/details/world-first-hybrid-drive...
by T1 Terry
Fri, 01 Mar 2019, 14:25
Forum: The Lounge
Topic: Solar Panel output: Rating versus Reality
Replies: 40
Views: 2706

Re: Solar Panel output: Rating versus Reality

We have arrived back home after our trip to WA in the Hino with the 6 x 270w Tindo house type solar panels flat mounted on rails mount to the roof. Looks kinda agricultural, but it worked better than we expected. The very best output we saw was 60 amps @ 26.6v or 1596w, not bad from 1620w of solar. ...
by T1 Terry
Fri, 01 Mar 2019, 10:47
Forum: Technical and conversion discussion
Topic: Lead acid to lithium conversion
Replies: 65
Views: 2866

Re: Lead acid to lithium conversion

If the cells won't hold better than 3.5v over night with nothing attached to discharge them, then they are not fully charged. Very important to fully charge the cells before the first use and equally important not to push any cell much over the 3.6v mark and hold it there for long periods if you wan...