Search found 67 matches

by CZal
Fri, 25 Aug 2017, 08:21
Forum: Batteries, charging, management and monitoring
Topic: Battery Replacement - MX-5
Replies: 27
Views: 3775

Re: Battery Replacement - MX-5

Thanks Adverse, Yes will ask others.... I've had to pull the price down as the US vendor is saying the cars are getting to be $5k - $8k more expensive at the auctions as they're getting more popular. Will do final negotiation when ready to buy, still hoping to get the same price if quick enough... E...
by CZal
Thu, 24 Aug 2017, 21:48
Forum: Batteries, charging, management and monitoring
Topic: Battery Replacement - MX-5
Replies: 27
Views: 3775

Re: Battery Replacement - MX-5

No comments good or bad? I thought I'd hear something along the lines of "You're soft, go the 6 or even better go the 7, 159V will really make her go!! " :D Bang for buck, the Tesla modules are the best value, so that's where I'm leaning. Mainly because I see that the BMS boards have been reverse en...
by CZal
Thu, 24 Aug 2017, 21:23
Forum: Batteries, charging, management and monitoring
Topic: Any info on these chargers?
Replies: 14
Views: 1984

Re: Any info on these chargers?

Hi Paul9, I agree with JonesCG in that it looks very much like a KingPan. (So much so that I'd have to expect that it is one...) I've had 2 x Kingpan 2000W chargers (144v nominal 10A output like you describe). Th 2Kw is a max rating. LiFePo4 144V nominal is a bit over 162.5V charging (45 x 3.6V) Wit...
by CZal
Tue, 01 Aug 2017, 18:37
Forum: Batteries, charging, management and monitoring
Topic: Battery Replacement - MX-5
Replies: 27
Views: 3775

Re: Battery Replacement - MX-5

So it looks like: 1. The Smart 3kWh Tesla packs look awesome but won't fit in the car 2. The volt packs will definitely do the job but aren't as sexy as the Model S packs and there's a question mark due to their age 3. The Model S packs have come up for a good per kWh price but I would still need to...
by CZal
Tue, 01 Aug 2017, 18:21
Forum: Batteries, charging, management and monitoring
Topic: Battery Replacement - MX-5
Replies: 27
Views: 3775

Re: Battery Replacement - MX-5

I'm surprised you couldn't tell from my rambling! So something else to add to the re-design! Well before tackling that I still need to settle on a base solution (yes based on bang for buck) I've covered most everything and I think the decision is getting to the pointy end now (this new Tesla opportu...
by CZal
Tue, 01 Aug 2017, 15:51
Forum: Batteries, charging, management and monitoring
Topic: Battery Replacement - MX-5
Replies: 27
Views: 3775

Re: Battery Replacement - MX-5

btw team I've gotten a bulk buy price on the following: http://www.ebay.com.au/itm/142458481269?ul_noapp=true (in deference to the running auction I won't disclose cost unless there's a genuine interest) I've requested a shipping cost from TGF These are the model S modules. Anyone want to join in pl...
by CZal
Tue, 01 Aug 2017, 12:27
Forum: Batteries, charging, management and monitoring
Topic: Battery Replacement - MX-5
Replies: 27
Views: 3775

Re: Battery Replacement - MX-5

Wow that's really interesting Peter, I still think my prob is on the battery side rather than in the controller. the car doesn't seem to be stalling, it's that the BMS modules alert that the batteries are out of (voltage) range. Yours don't sag the voltage and alert the BMS when you're pulling 500A?...
by CZal
Fri, 28 Jul 2017, 21:42
Forum: Batteries, charging, management and monitoring
Topic: Battery Replacement - MX-5
Replies: 27
Views: 3775

Battery Replacement - MX-5

Further to the original post then, I've put a spread sheet together of the (non LiFePo4) options. These are predominantly second hand Tesla modules and new Leaf modules from the US. All my dealings on Alibaba for LiFePo4 (or anything) seem really, really dodgy (incorrect Ah specs, the size/weight of...
by CZal
Fri, 28 Jul 2017, 21:20
Forum: Batteries, charging, management and monitoring
Topic: Battery Replacement - MX-5
Replies: 27
Views: 3775

Battery Replacement - MX-5

Thanks for the replies guys, Probably the only bit of information I haven't provided is that I had a bulged cell early last year that I replaced... That nice new cell may have been pushing current through the others if there was significant sag? I think the theories will keep me busy for a little wh...
by CZal
Tue, 18 Jul 2017, 04:55
Forum: Batteries, charging, management and monitoring
Topic: Battery Replacement - MX-5
Replies: 27
Views: 3775

Battery Replacement - MX-5

Hey Johny, Are they 38140s in your avatar? I seem to remember your cells being in nice ~12V packs... What's been your experience? (happy for you to PM me for a chat if you have time?) Also maybe people can riddle me this... My cells voltage sag under modest acceleration, which is why I'm looking to ...
by CZal
Tue, 18 Jul 2017, 04:29
Forum: Batteries, charging, management and monitoring
Topic: Battery Replacement - MX-5
Replies: 27
Views: 3775

Battery Replacement - MX-5

OK I received an email back from EVWest. The upshot is: They do deliver to Aus. They say that delivery to the port will be the most economical Price is in US and they'll accept Paypal so the conversion can all happen there. There isn't a BMS in the module, just cables so you can us your own. I've re...
by CZal
Sat, 15 Jul 2017, 02:52
Forum: Batteries, charging, management and monitoring
Topic: Battery Replacement - MX-5
Replies: 27
Views: 3775

Battery Replacement - MX-5

Thanks Adverse,

I've sent them an email today... let's see what happens...

C.
by CZal
Thu, 13 Jul 2017, 23:35
Forum: Batteries, charging, management and monitoring
Topic: Battery Replacement - MX-5
Replies: 27
Views: 3775

Battery Replacement - MX-5

Thanks for the quick reply Chris! I'm inclined to agree, they do look nice and powerful.... but 6 packs at $11.5k with delivery will kill my marriage http://forums.aeva.asn.au/smileys/smiley23.gif And I've still got to factor in a new charger... But let's play devil's advocate (only because I want t...
by CZal
Thu, 13 Jul 2017, 23:10
Forum: Batteries, charging, management and monitoring
Topic: Battery Replacement - MX-5
Replies: 27
Views: 3775

Battery Replacement - MX-5

I've summarised with pictures in this doc: New_Battery_Requirements.docx I would love to get the 4 pack of TESLA packs available for $5.5k US with $600 delivery shown here: http://www.ebay.com/itm/4-Tesla-Model-S-battery-modules-24V-21-2kWh-1776-Panasonic-18650-cells-/262288917272 20KWhrs at only 10...
by CZal
Thu, 13 Jul 2017, 23:09
Forum: Batteries, charging, management and monitoring
Topic: Battery Replacement - MX-5
Replies: 27
Views: 3775

Battery Replacement - MX-5

Hi team, It's time for me to replace my old battery pack and was wondering on people's thoughts to complete. I currently run 45 x 90Ah LiFePo4 Winstons They're all in series broken into 2 packs (front and rear of the vehicle) My drivetrain is a WarP9 driven by the ZEVA MC600S controller: • Max motor...
by CZal
Tue, 06 Nov 2012, 16:56
Forum: Members Machines
Topic: CZal's Mazda Roadster (MX-5)
Replies: 107
Views: 16417

CZal's Mazda Roadster (MX-5)

Thanks BigMouse, it's quite a journey! I'm afraid I've missed a lot in the blog as I just tend to do a bit of work here and there, rather than do a bit and then blog! But this shows that it's definitely do-able 'cause if I can do it, then really ANYONE can    http://forums.aeva.asn.au/smileys/smiley...
by CZal
Sun, 04 Nov 2012, 21:09
Forum: Members Machines
Topic: CZal's Mazda Roadster (MX-5)
Replies: 107
Views: 16417

CZal's Mazda Roadster (MX-5)

That was it for a while again, as we went away for a short honeymoon and then moved house. When we got back the weather had fined up and I managed to re-wire the motor so that it span the right way. After doing a little bit of driving up and down the drive way and balancing up the battery pack, it w...
by CZal
Sun, 04 Nov 2012, 20:19
Forum: Members Machines
Topic: CZal's Mazda Roadster (MX-5)
Replies: 107
Views: 16417

CZal's Mazda Roadster (MX-5)

Most of the drive components were in place while working on the heater and dash, so we decided to make a charge of at least getting the car moving. David (Irish Dave) came over and we spent the morning getting the BMS modules soldered up: http://forums.aeva.asn.au/uploads/866/IMG_0143_web.jpg Then i...
by CZal
Sun, 04 Nov 2012, 18:26
Forum: Members Machines
Topic: CZal's Mazda Roadster (MX-5)
Replies: 107
Views: 16417

CZal's Mazda Roadster (MX-5)

OK, back to the dash: I actually purchased a spare dash as the original had a cracked perspex cover and the new cover (well new from the wreckers)came with a dash behind it. The roadster's dash worked well here in that there were two dials that were obsolete. Oil pressure and Engine Temperature. I d...
by CZal
Sun, 04 Nov 2012, 18:08
Forum: Members Machines
Topic: CZal's Mazda Roadster (MX-5)
Replies: 107
Views: 16417

CZal's Mazda Roadster (MX-5)

Next came some of the interior works. Heater and Dash. I was originally hoping to reverse cycle the air-conditioning already in the car and I purchased a broken reverse cycle A/C unit off ebay for this purpose (I'm pretty sure I paid the princely sum of $1.25 for it) : http://forums.aeva.asn.au/uplo...
by CZal
Sun, 04 Nov 2012, 17:33
Forum: Members Machines
Topic: CZal's Mazda Roadster (MX-5)
Replies: 107
Views: 16417

CZal's Mazda Roadster (MX-5)

Then came a re-design of the rear battery box arrangement. The original design had the batteries directly where the petrol tank used to be, with a smaller box for the charger, bms and junction box. That worked for a long while, until we tried to put the roof down. The amount of clearance really wasn...
by CZal
Sun, 04 Nov 2012, 17:18
Forum: Members Machines
Topic: CZal's Mazda Roadster (MX-5)
Replies: 107
Views: 16417

CZal's Mazda Roadster (MX-5)

Next step was to install the Motor Controller (thanks EVWorks for providing great locally made products) and secure the control box to the front battery box.

Image

by CZal
Sun, 04 Nov 2012, 17:13
Forum: Members Machines
Topic: CZal's Mazda Roadster (MX-5)
Replies: 107
Views: 16417

CZal's Mazda Roadster (MX-5)

OK, another long break.... A long, long break. The car is moving along but so is life. So after a long sabbatical overseas and then coming home and getting married, the conversion continues http://forums.aeva.asn.au/smileys/smiley1.gif I've been working on the car and taking photos but not posting, ...
by CZal
Tue, 22 Feb 2011, 00:13
Forum: Members Machines
Topic: CZal's Mazda Roadster (MX-5)
Replies: 107
Views: 16417

CZal's Mazda Roadster (MX-5)

Hi all, Back to posting after a long break, as always real life getting in the way of the ideal! http://forums.aeva.asn.au/uploads/866/Before_Motor.JPG Ready to fit motor Thanks to all who responded relating to the battery questions. (Weber, I'd much rather a terse email than a $5k mistake, thanks m...
by CZal
Fri, 15 Oct 2010, 17:26
Forum: Members Machines
Topic: CZal's Mazda Roadster (MX-5)
Replies: 107
Views: 16417

CZal's Mazda Roadster (MX-5)

Thanks to all for all the useful information, I'm not concerned about any take over of threads. Batteries is the stage I'm up to in relation to this project so having this information here at this time is the right thing... (Obviously I'll have to learn how to bookmark the blog, as in weber and colo...