Recent content by wattmatters

July update. Not much mileage this month but charging was super cheap as I only used solar PV or free grid energy.

Which model and battery? I can't see how a service software update can affect range. It's not like they can change the laws of physics.

Range estimates depends on recent driving, environmental conditions and which drive mode is selected. If the car recently did some high speed driving or cold/wet weather driving, then it will show a lower estimated range. Also changing drive mode changes the range estimate.

You're introducing irrelevant info to the question of whether the MG's V2L is going to overload whatever you plug into it. The V2L will only supply the load placed upon it. It can't "push" more current than the appliance plugged in will consume. If the appliance or load demands more power than...

Exactly, and individual circuits have fuses/circuit breakers as well. But the point remains, just because an inverter can supply X kW doesn't mean it will. It will only supply power to meet the load placed on the circuit (up to the inverter's capacity limit).

Nope.

A supply only supplies what the load draws. My 15 kW home is connected to a grid capable of supplying hundreds of kW of power. My home doesn't catch fire or blow up.

My MG4 with an NMC 64 kWh battery will do an equalisation no matter the upper SOC setting used. e.g. If I set the battery to charge only to 70%, it will end the charge session with a typical short period of equalisation. You can do that with NMC cells. Not the case with LiFePO4 which definitely...

This is the MG4 ChatGPT Tech assist answer to the question: What is the V2L spec of the MG4?

These are questions for MG to answer. All I can do is report what it's actually capable of. It's not like they undersell the other capabilities such as charging rates. They don't provide a spec at all for V2L. Remember it's the V2L adapter that sets the rate limit, not the car's on board...

2-12 minutes is pretty normal. If it's been a long time between equalisation charges then it can take an hour or more.

When I arrive home I get out of the car, open the charge port, plug in and lock the car. That's it. My charge station looks after the rest and is set to start charging based on settings, either to charge from excess solar PV or during free grid energy period.

Cooling and phase changes have dramatically different levels of energy transfer. It takes way more energy transfer to freeze water than it does to cool water temperature down. e.g. dropping water temperature by 8°C is only 1/10th of the energy transfer required to change state from liquid at...

Range estimates are based on recent driving. If your recent driving has been city/suburban, then that's what it is basing the range estimate on. As you start doing highway speeds then it's accumulating km at a new economy rate and adjusting the range estimate accordingly.

They are confusing BMS recalibration and state of health check with equalisation. A battery BMS recalibration/health check requires the occasional deep discharge followed by a full slow (i.e. AC) charge. Equalisation just needs charging to 100%, the SOC it starts from isn't relevant.