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These border issues are getting worse eh No worries, maybe a few more tired EV packs will come up in the future that I can scavenge a few cells from ... or maybe even the whole pack if the price is right

T1 Terry

What price each? I'll take as many as you will part with if the price is good .....

T1 Terry

Hi, If only the was an electrical device that could be incentivised /subsidised that could soak up a lot of the excess solar energy during the day and be hooked up so it can push power back into the grid when it's in high demand.... Wow! I had an idea for such a device: I thought make it out of nic...

RIP Jack, 65 is way too early to fall off the perch. His EVTV weekly shows on the interweb was my entry point into the whole conversion world ... and probably my caffeine addiction so I could stay awake through a whole episode. Stopped watching it when his co presenter left, it just got too slow aft...

With my set-up being a hypoid design, the pinion bearings and gear teeth were originally submerged in the oil as well as a oil catch port as part of the cast iron that collected the oil tow from the crown wheel and fed that through the pinion bearings as well, I guess to ensure there was oil flow th...

Any news Chris? Any idea of price?

T1 Terry

With NMCs, the balancing is done at any voltage, so the end of charge situation is different. It is spending hours in the last top-up phase. I've found that the cell voltages are the same (about 4.02 v) 24 hours after charging is finished. With the balancers operating all the time, how do you deter...

It is a bit big. You would need 4 units to do a 14S lithium pack which would be almost the same volume as a cell. Not exactly sure how you would do a 14 cell in series pack, 16 in series required 5 units, one for each 4 cell group and one to balance the 4 x 4 cell groups. If you balance in 2 series...

We use these https://www.amazon.com.au/Battery-Balancer-12V%C3%974-Batteries-Equalizer/dp/B01JJ4X8CO/ref=asc_df_B01JJ4X8CO/?tag=googleshopdsk-22&linkCode=df0&hvadid=341791744052&hvpos=&hvnetw=g&hvrand=8983623791352116293&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9070827&hvtargid=pl...

antiscab wrote: ↑Sun, 23 Aug 2020, 09:58 Dan do you need the older blue case size 40Ah cells? Or the newer 115mm wide grey case size cells? I have a few of the former

How many do you have? I'm interested as I need a few as well.
Chris, what is the physical size of these cells and how many do you have?

T1 Terry

Wow, that is a very high oil filler/level plug, is that standard? I would have thought that much oil being churned up by the crown wheel and pinion would cause issues with seals ...... The diff in my big bus project has been rolled over and because it is a hypoid set up, pinion is below the centre ...

Wow, that is a very high oil filler/level plug, is that standard? I would have thought that much oil being churned up by the crown wheel and pinion would cause issues with seals ...... The diff in my big bus project has been rolled over and because it is a hypoid set up, pinion is below the centre l...

Does your BMS sense high cell voltage to stop the charging as well as the total battery voltage? The BMS we built for house battery use has the high cell voltage stop as a secondary protection and drives a timer. The timer can be set anywhere between 1 minute and 1 hr, it then senses for another hig...

Not good news at all Chris, but as one door closes another will open, just make sure you get through it before it slams shut ;) Any talk over that side of the island about setting up a battery plant using the lithium we are digging out of the ground? Or aren't we actually digging it up yet or refini...

Thanks Gents - just the info I was looking for. Definitely not an investment decision I get that :) And I definitely wouldn't throw that sort of money at a real bunky, would need to be a rust free reasonable car to start with. A ute is most practical both for ev setup and later use in my situation....

The last 48v system we installed had 2 different capacity solar arrays but also ran 2 PIP inverters in parallel. We conected one array to one inverter and the other array to the second inverter. Each show a different harvest but they both go towards supplying the load and recharging the lithium batt...

As to the inputs of those MPPTs, generally there's no problem with putting two separate arrays of equal voltage in parallel, but any more than three strings in parallel will need fuses on each string. I think that's right @weber ? No. Any more than 2 strings in parallel requires a fuse in each stri...

If you have multiple strings of series connected panels in parallel, you will need blocking diodes at the point the series strings join together in parallel to stop the panel series strings in full sun back feeding into the shaded strings. I know some here argue that blocking diodes are not required...

Yet another after thought, Maybe a 3 speed Borg Warner or Holden Trimatic auto trans from a V8? that way with my current Diff ratio's, i would have 1st gear for crawling off road and hill climbs, 2nd gear for running around town and 3rd for the Freeway. no matter which Auto trans i go with it will ...

If you Google 2 speed EV transmission, there is a heap of sites to look through there and https://www.diyelectriccar.com/ have quite a few threads on EV transmissions

T1 Terry

Keep in mind that is USD not AUD and does not include GST and other possible landing costs, Australia is not mentioned as one of the countries where the import duties are included in the price. T1 Terry that is in AUD and free shipping to Oz LFP4.jpg In the next part down in "About customs duties a...

Keep in mind that is USD not AUD and does not include GST and other possible landing costs, Australia is not mentioned as one of the countries where the import duties are included in the price. The cell age in the box does not effect the useable capacity as a house power set up because the discharge...

What are the diff ratios now? The most energy efficient gear in a manual box is 4th gear because that is direct drive, no losses through the cluster gear and the strongest selection in the gearbox. If you can find diff ratios for front and rear diffs that would see around 7,000 rpm at 110km/h in 4th...

The losses through the cell inter-connectors is so small I doubt you could actually measure it accurately .... well as long as the terminals and links are polished up to remove any oxidisation and coated with a suitable anti oxidant paste such as Alminox.

T1 Terry

About the only way you could utilise the inverter and electric motor heat for cabin heating is to modify the air conditioning to reverse cycle, but you would need to have air con in the first place. The reverse cycle air con can be anywhere up to COP 4, 4 times the heat energy for the electrical ene...