Recent content by wattmatters

Measuring SOH requires a controlled deep discharge and full recharge of the battery. Unless that was done then the SOH is just a number from the on board guessometer.

I would not recommend it, unless the car and battery is out of warranty or you care little about that. It's not that it wouldn't work, it's just that if issues do arise, keep in mind that the car's data is all uploaded to SAIC's servers. They know what the car has been doing. For me it's...

I have tested the Sigenergy EVDC module with both our MG4 (2023 Essence 64) and ZSEV (2023 Excite). It works but MG provide no statement about impact on warranty and there is every chance it could be used to void warranty. Note that when testing one mode with the EVDC it resulted in a HV...

Our energy bills for a large all electric home (pool pumps, 2 x ducted aircon, large shed, water supply and waste water pumps) and two EVs for last six months: We are currently $141.12 in credit. I've not actually had to pay an energy bill for ages. The current period from 1 April we are in...

Yes.

We have both a 2023 MGZS EV (gen 2 Excite base model) and a 2023 MG4 (Essence 64 kWh model). Australia. Quite different cars suiting different personal preferences. I suggest you drive each beforehand. If driving dynamics is important to you, then the MG4 is your pick, no question. If you...

Is that the inverter limit or the PV limit? And can it be higher with approval and zero export?

Is that a regulatory limit of some kind, or just a small roof? Relatively small power panels being a bit over 300 W. Modern panels are more like 500 W each. The calculus for how much solar and battery to get requires an assessment of a whole range of factors as well as an understanding of what...

The car is consuming energy while idle. How much depends on what it is doing. Aircon systems will definitely draw power. In Australia cabin heating will use a chunk of power as we do not get heat pumps, just single direction aircon. Aircon consumption will vary depending on a range of variable.

And yet you can buy them and they are marked compliant with ANZ standards. https://sydneytools.com.au/product/bayer-bex40m15a-40m-250v-15a-heavy-duty-extension-lead https://detaelectrical.com.au/products/deta-40m-15a-extra-heavy-duty-extension-lead

My voltage drop was acceptable (better than the maths would suggest). It worked well. Just used for powering the battery charger. The issue is availability of pre-made items. If you want 2.5 mm² wire, then it'll most likely be fitted with a standard 15 A plug/socket.

Very similar to what I was doing. My 40 m long extension lead was 15 A pins/socket (different to normal 10 A plugs/socket) using 2.5 mm² conductors and I ran it at perhaps 1.2 kW. I had minimal voltage drop, and nothing ever generated much heat. I also had an overcurrent protection device at the...

Lid or no lid, if it's generating that much heat at a plug/socket interface then it's not safe to use.

Fuel stations in the early days were not govt subsidised though. This is a different transition and without massive govt policy support and $$$, it will take far too long. A truck vs horse and cart transition was a completely different paradigm, the massive increase in transport effectiveness...

It's a forestry truck, don't know if a Windrose is built for that sort of duty. The truck they used ended up with an effective 200 km range. That's just not going to cut it. A truck sitting there not moving its load or unable to deliver is losing money. As to charging, we simply don't have the...