Charging Phev battery

[Manu99]

I have had a my MG HS +EV(phew) for five weeks now.
I drive it mainly on battery.
Is there a maximum that I should be charging the battery to?
Is there a minimum I should let the battery go down to before I charge?
Is it ok if I charge several times a day?
Thanks
John

 

[Cafeg]

I charge mine to 100% everyday. its just over 1 year old and battery still has full capacity.
Mine is also driven in EV mode all the time.

 

[Jto]

Should have purchased full EV car both of you. If you do not use the engine you could be asking for trouble in the future.

 

[ronmaz]

Because the battery in the HS PHEV doesn't support fast or rapid charging, charging it to 100% is fine and driving it down to 0% is also fine. The battery will never be totally empty even though it may show 0% as the car keeps some in reserve. Fully electric vehicles (BEVs) recommend only charging to 80% and not below 20% because fast and rapid charging to 100% can reduce battery life over time but we don't have to worry about that because ours is a slow charge. Having said that though, all batteries will degrade over time (years) but the HS PHEV will do so at a much slower rate.

You should use the petrol engine, at least once every week or two. Just drive it for 5-10 kms on petrol to keep the engine in good condition and the oil circulating.

 

[Manu99]

Because the battery in the HS PHEV doesn't support fast or rapid charging, charging it to 100% is fine and driving it down to 0% is also fine. The battery will never be totally empty even though it may show 0% as the car keeps some in reserve. Fully electric vehicles (BEVs) recommend only charging to 80% and not below 20% because fast and rapid charging to 100% can reduce battery life over time but we don't have to worry about that because ours is a slow charge. Having said that though, all batteries will degrade over time (years) but the HS PHEV will do so at a much slower rate.

You should use the petrol engine, at least once every week or two. Just drive it for 5-10 kms on petrol to keep the engine in good condition and the oil circulating.

Thanks for the info.
I've been scared to do that, now I've got the info I won't be.
I use the petrol engine when I'm going on a fast drive on the freeway or i am getting low on the battery. At least three times a week.
On my first top up with petrol I filled up the tank with 27 litres on a 37 litre tank.
I did 1100 kilometres. so that's 2.45 litres per 100 kms
That's not bad seeing as I used the petrol more than i needed to.

 

[Cafeg]

Should have purchased full EV car both of you. If you do not use the engine you could be asking for trouble in the future.

Not really, at the time I purchased electric was out of my reach money wise. I am happy with the phev I purchased. I drove a full electric mg when they serviced mine last month and I was glad to get back to my PHEV

 

[Archev]

Not really, at the time I purchased electric was out of my reach money wise. I am happy with the phev I purchased. I drove a full electric mg when they serviced mine last month and I was glad to get back to my PHEV

Interesting - my brother in law has just bought an electric Renault Austral ?
He’s chuffed to bits with it, loves driving electric, none of this charging by cable nonsense and it’s a bit easier than his former Range Rover sport on petrol.

 

[midician]

I treat mine like my phone - charge it every day . I have a standard timer on the wall socket which limits charging to off peak or shoulder times , so I don’t end up charging at peak rates. As my daily commute is less than 20km this suits me just fine. I could , at a push , charge every other day , but I just like to keep the routine simple. . Plug in when I return for the day .

You can’t overcharge the battery- it has a sophisticated battery management system which does just that - it looks after the battery no matter how long you plug it in for.

 

[midician]

If you live on a hill and the start of your day is driving downhill for a considerable time, you could recharge to about 61km range. This is because if the battery is fully charged, it does not like regenerative charging going downhill, and the ICE engine will kick in to slow you down. A quirk, I know, but it makes sense if you think about it....

 

[combattrroll]

Thanks for the info.
I've been scared to do that, now I've got the info I won't be.
I use the petrol engine when I'm going on a fast drive on the freeway or i am getting low on the battery. At least three times a week.
On my first top up with petrol I filled up the tank with 27 litres on a 37 litre tank.
I did 1100 kilometres. so that's 2.45 litres per 100 kms
That's not bad seeing as I used the petrol more than i needed to.

You will find it beneficial to use a 3 pin plug socket charger to trickle charge your battery overnight I use a 10 amp lead as it protects the plug socket rated at 13 amps overall charging at a slower rate does take longer but a cheaper off peak rate at night it shouldn't be a problem charging slower and longer put considerably less strain on the battery cells along with less heat and yes charging to 100% and using the full amount of battery range is exactly what the car has been designed for although I tend to flick between EV for longer journeys and PHEV when pottering about locally but yes I give the engine a good run on the motorway at least once a week.

 

[Cafeg]

I use a 3 pin plug to charge my PHEV every night so its ready for the next days running. In the morning I let it run the petrol motor for 5 - 10 mins for a start off before changing to EV. I also read that the petrol tank is pressurized which stops the petrol going stale since we dont fill very often.

 

[Nicola82]

Hi, on my hs phev purchase on January 2025. I driving usually on ev mode now the estimated range is down of 1mile at full charge battery? It is normal? There's possibility to change icon from mileage to percentual? I had 10000 miles

 

[combattrroll]

Hi, on my hs phev purchase on January 2025. I driving usually on ev mode now the estimated range is down of 1mile at full charge battery? It is normal? There's possibility to change icon from mileage to percentual? I had 10000 miles

Hi Nicola did u mean your car is showing an EV electric range of just 1 mile after a full charge overall you shouldn't get 1 mile as the regen will boost it up. Have you got the App is the battery showing 100% as being fully charged overall the car should be showing the correct range as indicated by the car's battery so either the cars not charged the battery isn't full of the display on the cars system is incorrect have you tried driving it purely on EV mode and re setting the trip to see how many miles you are getting the hybrid mode should kick in so you can also monitor the fuel to see if your using more fuel than usual if also speak to MG if it continues to persist is your charging lead ok is their any damage to it ? I guess it's a process of elimination

 

[ronmaz]

I think Nicola means that after having the car since January 2025, the electric range when full is showing 1 mile less than it did back in January 2025. All batteries degrade over time so the full range will degrade very slowly over time. I have had my 2022 model phev for 3 years. When new the full electric range was 63 kms, now after 3 years it's 61 kms. Totally normal and to be expected.