AEVA Forums

It does indeed show the symptoms of a high resistance joint on B45. This could be confirmed by taking the car for a short drive right after charging and logging the same cells. A few times my own BMS has alerted me to loose terminal connections left from when I was fiddling with the battery pack. Un...

Hi Barney,

If I am reading the data correctly B45 seems to be swinging alot higher than the other cells when on charge.

Is B45 one of the weak cells?

Maybe something amiss there I don't know for sure.

Can you use the cell loggers to measure the cells as they are approaching end of charge?
It would be useful to have this info just to check if the ones that are weak are getting fully charged.

Hi Barney,

What is your peak charge voltage?
That is, what is the highest voltage your charger gets to before switching off?

I agree Ian that converted cars would make for great racing. I have voted for Electrathon style vehicles because they are so accessible financially and allow a huge amount of design innovation. You can get on the track for $1500 (plus a squillion hours of your spare time). Speeds are still slow and ...

WAEVA have the WA Electrikhana happening on Thurs 26th April starting 3pm. The day after Anzac Day. Its an informal show & drive of electric vehicles at the RAC Driving Centre on Grogan rd near Perth International Airport. A skid pan is available for eV Challenge type cars to strut their stuff. The ...

Thanks for the info guys. That gives us something to work off. Could be more challenging than I thought.

Does anyone have experience converting a car with airbags?
I am helping a friend convert a late model Mazda RX8 to electric.

Before we start pulling it apart I would like to find out any regulatory and or safety issues with airbags.

Any informed advice gratefully accepted.

You guys interested to lend a hand in the pits for River Raiders team?

At this stage we have enough drivers but pushers and moral support also welcome.
Planning on two cars this year with new motors, three if we can swing it.

There are plenty of kids/adults willing to take the morning off school/work to attend and compete. Yours truely is excited anyway.

The WA eV Challenge is on again Monday October 24th. This year it is at the RAC driving centre near Perth airport, a real race track so things could get interesting. http://evchallenge.org.au/Ev_Challenge/Home.html Check out this video of last years event: http://www.youtube.com/watch?v=Es8R8XXw2CM ...

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Edit - moved to general discussion, more appropriate.

I have noticed the same thing on two cars now with Thundersky batteries. My EV Mighty boy was about two years old with LFP batteries and the capacity was down from 90Ah to about 75Ah. Admittedly that pack had a hard life and it used very early model LFPs. My current car I noticed the other day the B...

Darren Hamley has converted a Moke in Perth. He drives it every day and it is a great conversion. Mokes are very light weight and have plenty of space in the back for batteries, very simple. I suspect the crash safety rating would be somewhat less than a Jumbuck (which apparently is not saying much ;)

Advice from my experience: - Charge at night and use "Smartpower", ie time of use tariff. Much cheaper. - Use a timer to start the charging so it will usually be finished at about the time you want to drive in the morning. This will keep your batteries (and maybe your bum) warmer on the cold morning...

Temperature does have a big effect on LFP cell performance. If you can keep them above 20 degrees you will notice much better performance. Unfortunately they don't warm up much with use, unlike an IC engine.

Good to see some punters are taking up the Proton Jumbuck for conversion :) It is of course the perfect candidate. Front wheel drive for easy engine installation, rear tray which can be cut to drop the battery box into, good load carrying GVM, simple layout. My car has an almost perfect 50:50 weight...

As long as the peak charge voltage is not more than about 140V for a 38 cell LFP pack it should be fine.

I sourced these power steering pumps for EV Works and still have the first prototype in my Jumbuck. I have a switch on the dashboard to switch it off but generally leave it on all the time. The oil actually flows freely through the PS system until you put a load on the steering by turning it, then t...

Unfortunately the ZAPI controllers had a bit of a reputation for smoking. It is a shame as they looked good on paper. I nearly bought one years ago when I was converting the Mighty Boy. The regen feature was attractive but I subsequently found out that it doesn't work well with series DC motors anyw...

I have a Wicom BMS for sale for a good price.
It is for 32 cells and has the touch screen.
It is unused, purchased late last year, I had every intention of testing it but got waylaid.

Below cost price!
PM or email me about it.

If anyone is interested I have a Wicom BMS for sale for a good price.
It is for 32 cells and has the touch screen.
It is unused, purchased late last year, I had every intention of testing it but got waylaid.
PM or email me about it.

312V controller 94-96 cells, I am running 90 cells~288V currently, due to upgrade to 94 shortly. I have in the past seen 350A at 270V on the meter but the current controller has been derated to about 280A peak. It is still pretty punchy esp. for overtaking. The motor does get quite hot on a 100km ru...

Scotto, It may be worth having a look at my car as a baseline. Thanks for the mention Richo. I understand you are in Perth. If you can make it down to MR I would be happy to show you and discuss BLDC details. I have updated the page with more info: http://www.ev-power.com.au/-ROD-S-GARAGE-.html I ha...