AEVA Forums

why not just bypass the dud cell? it's only 2.5% less range and power

better to keep bypassing duds, then eventually replace the whole pack in one go

Here's another one, though battery isn't new. 2013 Nissan Leaf 1 Sp Automatic 5d Hatchback- Pure electric, https://www.gumtree.com.au/s-ad/seville-grove/cars-vans-utes/2013-nissan-leaf-1-sp-automatic-5d-hatchback-pure-electric/1252038824?utm_source=copylink&utm_medium=social&utm_campaign=socialbutto...

Not likely, the mppt just moves away from maximum power point if the actual power gets too high.

More likely that unit wasn't well designed from a temperature for back perspective

Ah ok. I was hoping to have a 190w string and a 250w string in parallel (with a diode ?) and that the inverter would just see that ~4A and 6A as 10A combined at whatever voltage they averaged out to. It sounds like I need to source another 10x 250w panels with near enough the same voltage and curre...

I use these: https://www.aliexpress.com/item/32967792648.html?spm=a2g0o.productlist.0.0.32d747dcTYKuud&algo_pvid=2f07c475-25dc-4183-ba2b-7e5d82baeda2&algo_expid=2f07c475-25dc-4183-ba2b-7e5d82baeda2-2&btsid=0ab50f4415934828058895866e7369&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_ and f...

it's a shame they don't fit in the prelude

I think once the cars are out of warranty, there will be somewhat more of a community effort in the same vein as gen 1 leaf and imiev

The 1st gen EVs (leaf, imiev, i3, etc) came to australia with type 1 ports, so the first roll out of charge stations were type 1. There are still a significant number of type 1 charge stations in Australia, though no new ones are being installed. But are there any Type 1 sockets installed? The only...

The box of bits comes with the car, and is all the parts needed to go up to 48 cells (or 45 x CALB CA 200Ah cells if you wanted to do a full replacement)

Hi All, I recently got my Ford Focus working again. Brief recap - A previous owner let the original battery go flat (0v). The car was subsequently sold and the original battery binned. I acquired the car sans battery, and have now installed a new (to me) battery. Details: looking at 50km range (mayb...

Hi Dave,

I do know the Zoe is extra picky about the resistance to earth (likely because there's no isolation between mains and battery)
not normally an issue in winter (when the ground is damp and the resistance at it's lowest)

do lets us know how you go with Renault.

Matt

Do you mean that Australia uses also J1772 Type 1, just like the US and Canada? In this case, we already have what you need: on the Kickstarter page those are "chRget 1" and "chRget 3" kits with a different number of add-ons https://www.kickstarter.com/projects/chrget/chrget Or maybe you mean an ad...

I concur, looks pretty cool.

For a plug that you would keep in the car for the odd opportunity charge, this is way better than keeping one of every conceivable adapter.

My only suggestion, would be to add a J1772 type 1 input, as Australia has both forms rolled out

No wonder they alternate

10kwh/100km is amazing

Yep, more or less. Do measure the rpm the motor spins at when the field is separately powered, and the motor controller is full on. If the motor is spinning faster than this when you connect the 2v battery to the field, the Regen current may be too high for the motor controller, which may damage the...

ah, what you are asking is very difficult with a series wound motor to achieve speed regulation would mean powering the field winding directly (ie 2V or so at 500A). you might get away with doing this with a 12v controller, powered off your 12v battery, though you would be controlling this manually....

The zappy h1 controller I remember being able to do Regen from a series wound motor.

You would need to move the brush timing back to neutral, and run a lower voltage.

Tbh, it's not worth trying to get Regen out of a series DC motor

That's some pretty thin wire, no wonder the voltage drops. The solution is to go to a 4 wire setup. I would trace out on the circuit board where the voltage measurement is, and connect that to the tabs separately. The other alternative is to lower the low volt limit by 0.3 to 0.4v, assuming the curr...

how good are the connections at the tabs during testing?
At 20A, the change in terminal voltage shouldn't be measurable

Two motors increases your power losses which are generally considered to be around 20% (in this case x2 for the dual motor) and confirmed by the EPA’s figures......it’s basic physics. That depends upon whether core (magnetic) or copper (resistance) losses dominate going to two motors doubles the (u...

yikes.
can the car run a module down?

sometimes with insurance, less is more.

Good that Budget direct are going to state that they definitely do cover in that situation
At present it's more an assumed situation (same as when a petrol car catches fire and burns a building down - which happens quite often)

check the 12 cell module attached to it - the shunt may have failed on (0.1A * 300 hrs)
it's probably not, but easy to check when you first crack the battery open.
would also mean you could just charge the cell group back up instead of bypass

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...