AEVA Forums

Batteries are tested 18650s sourced mostly from laptops packed in 40 packs of 60p. I am enclosing them individually in aluminium casing and sandwiching custom liquid-cooled plates between each. Additional parallel packs can be added to share the load/extend range. Currently, max continuous load per...

Welcome Kingglade Hopefully the local branch can help you in the engineer sign off department On your proposed components: the Curtis 1231C is a very old analogue unit. unless you already own it, I would suggest getting something more modern. The main issue is they're all likely to be close to end o...

is that 6months to flat or 6 months to a damaged battery for the model 3?

the former is acceptable, the later is a serious issue

Not mine, but saw this:
https://www.gumtree.com.au/s-ad/greenwo ... ved_search

$16k for a gen 1 leaf aust delivered with a new 24kwh (I assume) battery

If it really does support pylontech batteries, then you could use a BMS that uses the same communication standard

Orion and Zeva come to mind, there are no doubt others

Round trip efficiency on compressed air is pretty bad, around 45%, gets worse when trying to go higher pressure to get the volume down. Not terrible for storage between seasons in the right circumstances. Energy density is terrible too, both in weight and volume. Worse than hydro. 100kwh usable you'...

is this on the m3?

good to know critical systems don't rely upon the computers

I wonder if lead acid would be a reasonable option for this situation. at 160kwh, deep discharges would be rare (unless it's part of a VPP) 50 x 300Ah Gel batteries would be around $25k with a 50kw DC fast charge, that would only be a C/3 discharge rate (more like C/3.5 or C/4 if the grid is contrib...

what if you used a battery charger as the load? there's heaps of cheap 48v chargers out there - and then it doesn't matter if you leave it on the whole time the generator is running or not

what if you were to scale things down a bit? maybe go for a DC not so fast charge a couple of old leaf batteries would get you to 30kwh, keep the 13kwh of solar (obviously this isn't the expensive part) you could 50kw fast charge till the battery is dead, then slower charge at the combination of ava...

If you're interested in more A123 cells, I have around 80 or so in my shed

Why wouldn't the 3-phase version of the zappi be able to work on 2-phases (also, I've never heard of a 2-phase connection in Australia, is this on a SWER line?)

The zappi would measure each phase independently, so the 3rd phase would just be treated as 0 power all the time

The video has been corrupted. You may be able recover more of it with something like virtualdub

Getting 130km to show on the guessometer, and actually getting 130km are two very different things. A battery with all 16kwh remaining can do it.

[ Edited Coulomb: Changed topic subject following topic split; changed on many subsequent posts as well. ]

130km on a charge, holy moly, that's the best I've seen yet (and I bought mine brand new)

Are you planning on telling western power about the installation? If not, does it really matter? If yes, why not just ask western power? Over on quality Solar fb group, the installers commonly say that in WA export limiting isn't presently an accepted solution, and the 2.5kw maximum difference betwe...

Where are you located Sam?

However I am a bit perplexed as to why it can take 6.6kW of solar but only charge the battery at 2.5kW and output 2.5kW. I assume that it can do those simultaneously so, 2.5kW goes through to the inverter while it uses another 2.5kW for battery charging. Or even better would be to use 2.5kW for cha...

As far as a cottage industry is concerned, rather than transporting car or battery pack to WA or QLD, we could pay the experts to come to the cars. Either to just supervise the DIY or do the whole job. as someone who has attempted this with Vectrix scooters a few thoughts come to mind: it works bet...

I have about 7.5 kW on the roof now). Now my two arrays are within the solar voltage and current limits, but would max out on a cool, sunny day. Decisions... what inverter do you have at the moment? how many mppt does it have? this is the one I was talking about: https://solarbatteriesonline.com.au...

wow that's crap - it would be a little heater - imagine summer

that goodwe dc-dc unit keeps looking better and better

posting here, because notes online are google searchable and much less likely to go missing than if I put them on my laptop somewhere I have a JSI-2000 that reported a failed output relay. JFY accepted my warranty claim and then fell off the face of the earth (though this happened right before chine...

retrofitting battery cooling may be possible. I wonder how similar in shape a zoe battery is to a leaf

My thinking was, the capacitor pack acting as the traction battery and a constant drain of 40 amps once the voltage exceeded (?) volts and that fed into the 40Ah aux LFP battery in the spare wheel well. If the LFP cells were swapped out for LTO cells, could they be charged faster? I can't imagine a...

optimal ICE sizing in a hybrid application is a bit of a balancing act. peak efficiency (which is what matters in a hybrid) improves as engine size goes up. energy lost to maintain temperature also goes up too. That's one of the reasons the engine size in the prius has been getting bigger as time go...