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  1. wattmatters

    MG4 Battery Degradation

    My scanner says 100% at 21.6k km and a few months shy of two years since manufacture. Not that it means much since SOH numbers come from an unknowable black box.
  2. wattmatters

    Selling MG4 64 essence in Australia. Has anyone done it?

    Redbook: https://www.redbook.com.au/cars/results/?q=(And.(C.Make.MG._.Model.MG4.)_.YearRange.range(2023..2025).)
  3. wattmatters

    MG4 in Australia

    Presumably as accurate as the data it is reading from the car.
  4. wattmatters

    Cyclone Alfred - Brisbane Australia

    Still raining, roads still cut. Grid power hasn't been interrupted fortunately (poco sent a warning out yesterday to expect it) but even so I've been making use of the V2L, charging the car up during the free energy period 12-2PM each day and discharging to the home battery to supplement the...
  5. wattmatters

    Cyclone Alfred - Brisbane Australia

    It now looks like we have hit that period where the rain is just going to be non-stop. The bridge across the river has now gone under and is closed and several areas are now isolated and will be for quite some time. I expect later today we'll be cut off from the main highway. And yet the worst...
  6. wattmatters

    V2G Vehicle-to-Grid capability

    The unit next off the block here most likely to be V2H/G capable/certified is the Sigenergy DC charger. It's not a standalone unit, needs to be part of the Sigenergy stack (inverter + battery) and costs ~A$7k for the 12.5 kW unit and A$8.5k for the 25 kW unit. It would also require the car...
  7. wattmatters

    Cyclone Alfred - Brisbane Australia

    Turned out I only drained 2.4 kWh from the drive battery. Weather was weird, just as Coulomb described: Which meant that we actually got a bit more from solar PV that I thought. Anyway, with the car's help the home battery was fully charged by 3:45 PM and the car is still at 89.3% SOC, so I'll...
  8. wattmatters

    Cyclone Alfred - Brisbane Australia

    At end of the free period the car got to 93% and the home battery got to ~ 90% so now I'm sending some of the car's excess charge back into the home battery via V2L and a charger. Set the car's discharge limit to 80% SOC but it won't need that much. Charging at ~1.6 kW into the home battery...
  9. wattmatters

    Cyclone Alfred - Brisbane Australia

    Sucking down the juice in prep:
  10. wattmatters

    Cyclone Alfred - Brisbane Australia

    We are about to hit the 12-2 PM free energy period so will be charging up the home and car batteries as much as I can. Home battery likely won't get to full charge today because of poor solar output (it didn't get there yesterday either) so I may dump some back from the car into it later...
  11. wattmatters

    Cyclone Alfred - Brisbane Australia

    Alfred is tracking back north again, these systems are so unpredictable... We are a fair way south and outside the expected danger zone but expect a LOT of rain with moderate to major flooding over the coming days. Hope all our northern friends stay safe.
  12. wattmatters

    Best miles per kilowatt hour figure

    Infinite miles/kWh. Dorrigo to Thora.
  13. wattmatters

    Keeping track of my MG4 (efficiency)

    Updated with February data:
  14. wattmatters

    MG4 in Australia

    This is our long term economy and normalised range estimate since I started capturing the data with Home Assistant: We live northern NSW so a mild to hot climate at times. Spikes in economy rate will be due to long highway journeys up/down the Pacific Motorway. Overall the general trend has...
  15. wattmatters

    MG4 51kWh LFP Battery Health

    Not sure about over there but here the 51 kWh LFP MG4 has a max DC charge rate of 88 kW.
  16. wattmatters

    MG4 51kWh LFP Battery Health

    Yes, but even based on lab test result the NMC cells in my MG4 will outlive the car.
  17. wattmatters

    Squeaky Bum Time!

    Driving home on a long trip when a planned charge stop has non-functioning chargers...
  18. wattmatters

    MG4 in Australia

    Not here. They are capable, they just don't enable it. If you are lucky to get a working Evie charger on the highway. Most of them up our way are junk, to be avoided. I've used the RFID card perhaps 3 or 4 times, most networks here don't support it. Evie have introduced plug n charge with...
  19. wattmatters

    MG4 in Australia

    Except that Tesla SCs require non-Teslas to have mobile phone coverage to use an app to start a charge session. When there is no phone signal you are SOL. Optus was dead that day. Phone signal is an issue at two Tesla SC sites I've used, Thrumster and Chatswood - the signal is poor and...
  20. wattmatters

    MG4 51kWh LFP Battery Health

    Everything degrades over time, it's just a matter of the rate.
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