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  1. shpub

    Overdrive - why not?

    According to In-depth: the Formula E powertrain explained "Formula E cars has two speed boxes - a lower speed gear for slow hairpins and starts but as of 2020 no Formula E car has a multispeed box." They certainly has 5 speed boxes initially but the option of single speed was allowed with the...
  2. shpub

    High Voltage (HV) Battery - Best Charging Practice?

    I am not so sure that what they found is actually relevant to EV use. The full paper is here: Radware Bot Manager Captcha Note the high temperatures used in the testing with battery temperatures of 55 deg in some cases and taking the battery voltage down to an SOC of 0. The batteries were...
  3. shpub

    Charger Rip Off

    No they didn't. Newport Pagnell superchargers for example are Tesla only. This is all Tesla superchargers... according to Tesla. This is open Tesla superchargers. Again according to Tesla
  4. shpub

    Charger Rip Off

    AS for which are open Tesla, the Tesla app knows you have a non-`tesla and will show only open Tesla chargers. If I am planning a longer journey I will often confirm with Zap Map and use Chat to confirm that non teslas have charged there.
  5. shpub

    Charger Rip Off

    It also depends on the current capability of the cable itself. If the cable is rated at 16A then you only get 3kw ish per phase. So if your car as a 7kw single phase charger, then the 16A cable will limit it to 3kw(ish) anyway. So the number of phases the EVSE can provide, the number of phases...
  6. shpub

    High Voltage (HV) Battery - Best Charging Practice?

    Coulomb counting is not that accurate either if you want to calculate a battery SOC. It's accurate in that you can measure the current going in and out which will tell you how much can be extracted. Liion EV batteries are around 90% efficient at best, but it is very dependent on a lot of...
  7. shpub

    High Voltage (HV) Battery - Best Charging Practice?

    The car thinks it knows the SoC but it is a guess that could be 10% out. SoC is really difficult to measure, especially in an environment where the battery is constantly being discharged and charged at differing rates.
  8. shpub

    MG ZS incompatible with Tesla Superchargers for ‘safety reasons’

    I documented the whole saga for the MG5 (started in 2021) here in 4 FAQs: MG5 Supercharger problems: FAQ 1 - Timeline of events
  9. shpub

    High Voltage (HV) Battery - Best Charging Practice?

    Plug it in when you need more miles. Drive it when you have miles. Life is really too short to do anything else. You will need a 100% AC charge to balance the batteries which is a good thing which really blows this idea of never going to 100% out of the water. DC charging to 80% is a good...
  10. shpub

    Mg 5 inverter (on board charger)

    There are multiple versions of that CCU and they vary in terms of the power and voltage outputs and also include V2L capability. No you can't get a newer unit and retrofit to get V2L. It would make sense to "vin lock" them so that the wrong unit does not go and do some thing silly like charging...
  11. shpub

    Quick disconnect for MG5 battery

    Just switch the car off. Yes.
  12. shpub

    Newly purchased MG5 battery module fault

    1B2500 is not a valid code or at least it is not one in the MG5 manual. It could be an incorrect decoding from the OBD reader. There is a PID2500 which is an internal PEB fault with the electronics supply voltage. It may be that. Given that the 12v battery died indicates that the Charger may...
  13. shpub

    Newly purchased MG5 battery module fault

    I don't know what your experience or background is but so forgive me if this is a bit granny sucking eggs. Just to confirm the system is full of 400v sources which if touched will kill you. You need the right ppe and to follow the procedures for isolating the battery. Assume nothing. If the...
  14. shpub

    Warning for us Supercharging MG5 owners - always use the Tesla Supercharger app!

    This came up on a private forum so I have copied it here as I cannot link to it. As I am not sure that MG5s or other models have the ability to stop a DC charge from the car - I always stop it at the charger or app - it could be a real issue for us. It talks about problems with BMW i3 but has...
  15. shpub

    Tesla Supercharger Issue MG5 LR

    its pinned at the top of the mg5 forum. https://www.mgevs.com/threads/mg5-supercharger-faq-2-what-upgrades-does-my-mg5-need-to-use-a-tesla-charger.17570/
  16. shpub

    Tesla Supercharger Issue MG5 LR

    Check the FAQ out and you will find that there are two "Tesla" updates. One is a recall and the other is not. The recall software which Wilsons has said they did used to cure the Tesla problem but doesn't anymore after Tesla "updated" their chargers and you need the other fix as well.
  17. shpub

    Impact of KERS on tyre wear

    But us MG5 owners do not have a OPD option. So us drivers have to use our feet to transition between regen and friction brakes.... Apology accepted but not that you needed to. If I could give you 20 trophy points I would!
  18. shpub

    Impact of KERS on tyre wear

    It's not a fallacy. It is how many drivers worldwide drive. They anticipate when they need to slow or stop and do it gently and smoothly instead of braking hard at the last minute. What that starting level actually is depends on the driver and what the driver can comfortable control. The...
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