Recent content by wattmatters

Another factor would be the higher AC charging efficiency of the 77, being 3-phase 11 kW. WLTP testing is based on AC charger energy throughput and 11 kW 3-phase is more efficient than single phase charging.

WLTP is from the manufacturer. Perhaps the LFP battery consumes more energy in WLTP testing (e.g. for cold weather numbers as LFP loses more capacity than NMC in cold conditions)? The 51 is only 16 kg lighter than the 64.

Would a 77 typically have more highway miles than a 51? I was referencing the EV database: https://ev-database.org/car/1973/MG-MG4-Electric-77-kWh https://ev-database.org/car/1708/MG-MG4-Electric-64-kWh https://ev-database.org/car/1707/MG-MG4-Electric-51-kWh

The posted economy rate specs have the 77 at a little over 1% higher consumption per km than the 64.

I typically get between 16.5 and 18.5 kWh/100 km when driving the freeway between Coffs and Sydney at posted limits (mostly 110 km/h actual speed). The difference is usually wind and temperature conditions. Air drag increases with the square of speed, and the power demand increases as a cube...

The car's discharge feature is for V2L only. I have the Sig EVDC module as well. No plans to use the bidirectional capability other than for long grid outage support.

Yesterday was rainy with sun poking through at times. Love the free energy we get in the middle of the day. Also a bonus period in the evening where we get $1 for not importing and extra for exporting some. 25-Apr PV Import (Free) Export Consumption kWh 22.5 27.6...

In that case you would be better to put a power/energy monitor on your charge station circuit if it doesn't have something already built in. It's the energy put through a charge station you are paying for, not what ends up in the car's drive battery. Another option is to use ChargeHQ. It...

Just on this, I have a sensor set up in my Home Assistant which counts the days since my car was last at 100% SOC. MG4 Essence 64. It's a tool I have to check it hasn't been too long. Usually it looks after itself without me needing to schedule it as I'll typically give the car a full charge...

What info do you need? While driving the car is always sending data to the SAIC server, so that part is covered, e.g. odometer readings. That doesn't tell you what the km were for though (e.g. personal v work). For charging energy it would be better to use data from your charging source(s).

Not usually, unless you are high mileage and DC fast charge a lot. If the car really needs an equalisation, it will tell you. Else normal charging to 80% SOC will take care of it, provided it's the car's BMS which stops the charge session and not the EVSE (or service controlling it) as that...

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...