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Electric Vehicles in Thailand

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4 minutes ago, brfsa2 said:

I wish I could go to 100% to have longer time on the road... normally I have stop at 90% when charging speed drops dramatically to below 10kW I usually hit the road at 90%

90% -> 10% only gets me 220km on highway. (SOH is already 93%, so battery is now only 54kWh)

These BYD cars can't sustain long highway drives, after 1-2 hours the battery and drive train are hitting the thermal limit of the cooling system.

I noticed on a recent trip that I still get slow speeds like 60-70kw at most from low SOC, then it goes very slow after 30 min of charging. I cannot reiterate more, these BYD cars really cannot sustain long trips. maybe the Seal or Sealion 7 might be able to do better, but Atto3 and Dolphin are <S H I T>!

Screenshot 2026-04-24 at 10.11.42 AM.png

Bummer, as our ZS is really consistent, till it hits 95%, then it really slows down, so we rarely get to 100%. If someone is waiting, we'll leave at 90%, as usually done eating by then anyway.

We usually start charging around 30%, rarely making it 3+ hrs of any leg driving. If we can average 70-80 kph, that's only 200-250 kms. Not too many stretches of highway we're on that allow 120 kph, since we usually head south, if just not going to BKK, <300 kms to see daughter.

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  • JBChiangRai
    JBChiangRai

    There's no point arguing with these anti-EV people, even when you educate them over their mistakes, they just repeat their baseless opinions somewhere else.  Frankly, it's tiresome.   I can'

  • JBChiangRai
    JBChiangRai

    Your assumption Thailand will follow, is I believe, false.   Two completely separate markets with separate circumstances.   What kickstarted the EV revolution here was BYD & GW

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4 minutes ago, brfsa2 said:

I cannot agree, I would never even say Atto 3 is good for City if you have to take the highway daily.

where i live (in nakhon somewhere), there aren’t really highways, only sometimes you can drive up to about 90 km/h 🙂

personally, i think the atto 3 is a good choice for most people, also the prices have dropped quite a

lot in the last two year ...

with my sealion 7 awd, i usually get a range of around 500 km, but that’s in a much higher price range than the atto 3 ...

38 minutes ago, brfsa2 said:

I wish I could go to 100% to have longer time on the road... normally I have stop at 90% when charging speed drops dramatically to below 10kW I usually hit the road at 90%

90% -> 10% only gets me 220km on highway. (SOH is already 93%, so battery is now only 54kWh)

These BYD cars can't sustain long highway drives, after 1-2 hours the battery and drive train are hitting the thermal limit of the cooling system.

I noticed on a recent trip that I still get slow speeds like 60-70kw at most from low SOC, then it goes very slow after 30 min of charging. I cannot reiterate more, these BYD cars really cannot sustain long trips. maybe the Seal or Sealion 7 might be able to do better, but Atto3 and Dolphin are <S H I T>!

Screenshot 2026-04-24 at 10.11.42 AM.png

Yeah, i think Atto and Dolphin are more suited to urban driving but don’t put all BYD cars in the same bracket.

I am perfectly happy with my Seal with an 82.5 kw battery which gives me around 520/500 km range with normal driving.

Happy with the charging speed:

IMG_8738.jpeg

and while the charging curve does drop off when the battery is getting full it is better than most.

IMG_8739.jpeg

1 hour ago, brfsa2 said:

WOW, I love you for that post, I hated the fact I couldn't get Gpack on the atto3 before. this is great news

THANK YOU!

Well, hurry up and attempt installation....😊🙂...and does the app loading password given in the video work. Looking forward to how it works out for you.

On 4/23/2026 at 11:15 AM, brfsa2 said:

Not really! I can easily disagree. Trust me, for me it really sux so much to have a slow charging car.

My longs trips (900km) are:

- Drive 2-3 hours

- Charge 1 hour

A trip that used to take me 11 hours on the Diesel Fortuner, now takes me 15 hours on the BYD Atto 3.

The 88kw charging speed for the atto3, is only during when the battery is below 60% and nobody else using the charger. Most of the time it's going to be 56kW until mid battery and then 20-30kw to reach 100%,

it really, REALLY sux to wait 1 hour every time I need to charge from 10-90%, want to go 100%? sure, it's 1.5 hours.

That is why this I keep saying BYD are toy <deleted>ty cars.

my next car will be 875V and able to charge at 400kW or even 500kW... and 100kWh battery

Because you are charging wrong. 20 to 80 percent is the fastest way. Saves you massive amount of time

3 hours ago, Andrew Dwyer said:

Yeah, i think Atto and Dolphin are more suited to urban driving but don’t put all BYD cars in the same bracket.

I am perfectly happy with my Seal with an 82.5 kw battery which gives me around 520/500 km range with normal driving.

Happy with the charging speed:

IMG_8738.jpeg

and while the charging curve does drop off when the battery is getting full it is better than most.

IMG_8739.jpeg

YES, I ENVY YOU.

The SEAL is another league compared to the Atto3 poor man car.

Just the fact you can still pull 44kW at 99% tells everything. And even able to use 150Kw from start is a game changer compared to the Atto3, the poor Atto 3 would be pulling 8kW at 99%.

I'm not charging wrong, LFPs are fine to charge to 100%,

a suggestion saying that 20-80% applies to NMC batteries, besides, 20-80 only gives me 180km range on the highway, and maybe 280km on the city.

2 hours ago, Pib said:

Well, hurry up and attempt installation....😊🙂...and does the app loading password given in the video work. Looking forward to how it works out for you.

I already side loaded

So y'all telling me my 'low old tech' 2022 MG ZS (CATL) small battery is pretty good then. I've timed the charging, as every 1% clicked to the next, and fairly consistent 40-45 secs per %. Till it hits 90%, then 1 min, then at 95%, drops to 2 mins for about 2%, then sloooowww. Last 5% takes about 20 mins total, so scratch waiting for that.

Will only load at 76kW, but fast enough, as usually done before or about same time we're done eating.

Daughter has Atto 3, and hasn't complained, but she charges while she's eating and or shopping also. Her condo doesn't have charging. Doesn't take road trips, so not an issue with her.

5 hours ago, brfsa2 said:

YES, I ENVY YOU.

The SEAL is another league compared to the Atto3 poor man car.

Just the fact you can still pull 44kW at 99% tells everything. And even able to use 150Kw from start is a game changer compared to the Atto3, the poor Atto 3 would be pulling 8kW at 99%.

My Atto 3 Extended Range charges at 30-32KW at 99% but about 15 to 30 seconds before reaching 100%/full I can "sometimes" see the charge rate taper off to 16KW and/or 8KW for a few seconds....that period of 8KW or 16KW charging only last a few seconds. Other times the charge rate is still at 30KW when hitting 100%.

Since the charge rate only updates approximately every 30 seconds (it's not like every few seconds) the final minute or so of charging (i.e., around 99% SOC) can sometimes show a 30KW charge rate and other times less than 30KW "all depending" on if an update of the charging rate happens to occur/display before the charging terminates at 100%.

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My issue with buying a brand new car is that it is getting to the point where you don't fully own it, even if you pay it off. You have all these subscriptions for certain features that are in the car but you can't access them unless you pay extra. The company that sold you it has a kill switch to your car if they so wish to activate it for any reason. Many don't work properly unless you have updated the software to the latest upgrade, which of course costs. What do you do when they stop supporting that car's software?

These car companies are now making it increasing difficult to repair a car, or even diagnose it, unless you take it to the dealership... many independent mechanics are warning people about new cars made from the start of 2026. These car/insurance companies have subscription deals etc. that give you a little discount but can track your movements, speed, regular routes, location and all sorts... just privacy invasive IMO.

I think I'll stick with older cars for as long as possible and they are become bargains... but eventually you won't have a choice and everyone is being forced into this whether they like it or not.

54 minutes ago, Sir Dude said:

just privacy invasive IMO

Yeah I mentioned this before but apparently EV owners have 'nothing to hide' so are not concerned about privacy and mentioning such privacy issues is 'polluting' the thread 😂

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59 minutes ago, Sir Dude said:

My issue with buying a brand new car is that it is getting to the point where you don't fully own it, even if you pay it off. You have all these subscriptions for certain features that are in the car but you can't access them unless you pay extra. The company that sold you it has a kill switch to your car if they so wish to activate it for any reason. Many don't work properly unless you have updated the software to the latest upgrade, which of course costs. What do you do when they stop supporting that car's software?

These car companies are now making it increasing difficult to repair a car, or even diagnose it, unless you take it to the dealership... many independent mechanics are warning people about new cars made from the start of 2026. These car/insurance companies have subscription deals etc. that give you a little discount but can track your movements, speed, regular routes, location and all sorts... just privacy invasive IMO.

I think I'll stick with older cars for as long as possible and they are become bargains... but eventually you won't have a choice and everyone is being forced into this whether they like it or not.

Choose wisely, as we have no subscriptions at all. Not even sure if MG ZS even has any as an option. Still have free SIM, which we never use, and I actually thought that expired after a year or so. Wife pointed it out the other day, still active.

Anyone can fix and maintain their vehicles ... if you know how.

Privacy ... car is the least of my concerns. We're tracked in ever movement & purchase we make. CC/debit card/ATM, CCTV, member cards, if having, your phone tracks your every move. Turning everything off doesn't help, they're still tracking you.

1 hour ago, KhunLA said:

Choose wisely, as we have no subscriptions at all. Not even sure if MG ZS even has any as an option. Still have free SIM, which we never use, and I actually thought that expired after a year or so. Wife pointed it out the other day, still active.

Anyone can fix and maintain their vehicles ... if you know how.

Privacy ... car is the least of my concerns. We're tracked in ever movement & purchase we make. CC/debit card/ATM, CCTV, member cards, if having, your phone tracks your every move. Turning everything off doesn't help, they're still tracking you.

IMG_20260425_124852.jpg

MG iSmart Subscription

You must be very special for MG to give you a free lifetime SIM card and lifetime app subscription.

2 minutes ago, matchar said:

IMG_20260425_124852.jpg

MG iSmart Subscription

You must be very special for MG to give you a free lifetime SIM card and lifetime app subscription.

Haven't hit the 5 yr mark, so that explains the active SIM. We don't use iSmart now, so in 1.5 yrs, it won't be no loss.

6 hours ago, KhunLA said:

Privacy ... car is the least of my concerns. We're tracked in ever movement & purchase we make. CC/debit card/ATM, CCTV, member cards, if having, your phone tracks your every move. Turning everything off doesn't help, they're still tracking you.

My point exactly.

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7 hours ago, Sir Dude said:

These car companies are now making it increasing difficult to repair a car, or even diagnose it, unless you take it to the dealership...

I agree my old ICE car was so simple to work on.

I knew how to Change the Engine Oil and Filter every 5,000–10,000 miles

Replace Engine Air Filters

Flushing Coolant/Radiator Fluid

Transmission Fluid Changes

Changing Spark Plugs

Replacing Accessory Belts

But on my new electric car I don't know how to do any of those things

44 minutes ago, Bandersnatch said:

I agree my old ICE car was so simple to work on.

I knew how to Change the Engine Oil and Filter every 5,000–10,000 miles

Replace Engine Air Filters

Flushing Coolant/Radiator Fluid

Transmission Fluid Changes

Changing Spark Plugs

Replacing Accessory Belts

But on my new electric car I don't know how to do any of those things

I can sincerely sympathize !

Back in my early history I had a girlfriend who on a whim purchased a 1936 Austin Seven.

The elderly woman owner sold it "as is" which turned out to mean it had a broken back axle but also two spares were under the back seat along with a comprehensive "Owners Manual" which as part of routine maintainance gave details on how to perform a valve grind when needed.

After making the repairs I got the honor of driving it as a reward for mechanical repairs etc. A lot of fun !

Over the decades the basic simplicity of ICE vehicles got increasingly complicated to the point now the life expectancy is warranted to same as disposable life of 5 years approx.

Even ICE propelled vehicles are missing dip sticks to check transmission fluids because absence is equal to obsolete function.

Mechanics are now Technics capable only exchanging modules as indicated by electronic analysis with no comprehension of why. No less than such as a TV .

If robots eventually take over even the jobs considered lowly and mundane what will remain for actual real people to aspire to in comprehension or capacity of anything ?

Even actual defined ownership is being restricted where purchasing a vehicle only permits operating it and utilizing the functions it already contains conditionally on further monthly payments for such as heated seats etc etc !

EV's are the current ultimate in consumer compliance to expectations of social responsibility re' pollution etc and given the degree of independance via solar energy charging is undeniably a viable option outside of the same old overall incapacity of the consumer to avoid dependence on Tech.

22 hours ago, matchar said:

IMG_20260425_124852.jpg

MG iSmart Subscription

You must be very special for MG to give you a free lifetime SIM card and lifetime app subscription.

If it includes the sim card data for a whole year it's cheap then.

This is better than byd for sure. The wife atto3 sim data ended like 2 years already and BYD don't have a solution. I can't use my own otherwise the byd app stops working

1 hour ago, brfsa2 said:

If it includes the sim card data for a whole year it's cheap then.

This is better than byd for sure. The wife atto3 sim data ended like 2 years already and BYD don't have a solution. I can't use my own otherwise the byd app stops working

Yeah, i have been meaning to ask this question on here:

My BYD SIM expired here a month or two ago. I used my phone data and at first it seemed okay ( tbh i only use Spotify and Google Maps via Gpack ) but then it got a little weird and now sometimes it will only play the last 5 or 6 songs i played when last on WiFi ( played around with it in my car port using the house WiFi ) and other times it won’t do anything.

IMG_8741.jpeg

Bluetooth connected, Hotspot connected but still nothing, and i have this phrase at the bottom of this photo which confuses me:

IMG_8743.jpeg

From what i understood using your phone data would allow me to use Spotify and Google Maps ( via Gpack ) but neither now work.

My initial thoughts are that my phone data is weak ( 6 Mbps ) although it is perfectly adequate for using video streaming, Google maps, Spotify etc but just on my phone.

I buy a yearly 6 Mbps unlimited subscription which I just renewed in February so am loathe to buy another year at 10 Mbps for an additional 2,000 baht in case this doesn’t resolve the problem.

So, am I doing something wrong or is it not possible to use my phone data ( from the red circled sentence above ) or just lacking data speed ?

Would be interested to hear others opinion or suggestions from those who are in a similar position.

Note: I can use Apple CarPlay for both Spotify and G Maps but find them to be lesser versions via CarPlay and would much prefer the full versions o experienced from the BYD SIM Data.

Where have the emojis disappeared to?

Now they only show the last one which I have used, the list of choices has changed.

Edited by wil iam not

6 minutes ago, wil iam not said:

Where have the emojis disappeared to?

Now they only show the last one which I have used, the list of choices has changed.

Don’t think so

On 4/24/2026 at 4:17 AM, brfsa2 said:

only if you dont mine waiting 1 hour to charge after 2 hours of driving. which is a long time even to have a long meal.

I cannot agree, I would never even say Atto 3 is good for City if you have to take the highway daily. even as an entry car, it's too expensive for what it offers.

the dolphin is totally fine for the price, but Atto3 is a stupid purchase.

I disagree with you.

I've had an Atto 3 since January 2023 - so one of the first lot to be sold. I think it's an excellent vehicle for urban use. People forget that, back in 2022 when I placed the order, there were way fewer options for 'reasonably priced' EVs.

If I was going to buy now, would I buy an Atto? Probably not, but only because there are so many other options (I like the styling of the Hyundai Ioniq). However the Atto is well built and has been trouble free.

I have said consistently that I think EVs are excellent for daily urban use, as long as you have a home charger. They are also fine for shorter distance trips (for me, that's 300 km total distance door to door without having to charge).

The Atto battery could be bigger and it could charge faster. But I knew when I bought it that within a couple of years there'd be vehicles on the market that cost the same or less yet had bigger and better batteries and charging capability.

Buying an EV is really like buying any other electronic item: for a given price of X, whatever X may be, the spec will improve (sometimes dramatically) in a relatively short period of time: just like computers, phones, TV, GPS etc. On the other hand, when you buy an ICE the engine tech is not going to change in the same way, so a, say, 5-year old ICE will be competitive to a new one in many respects.

On the point another poster made about charging 20-80%, that's the 'sweet spot' when charging is fastest/most efficient. Point being you waste a lot of time, comparatively, to get from 80-100%. So, on a longer journey, you might have to make one more 30 min charging stop, but if you do three of those (90 mins) it's still more time efficient that 2 x 60 min sessions.

Where I agree with you is that time spent charging is all a PITA. Even having to stop for 15-20 mins I find tedious. Which is why I still have a petrol ICE which is my default for longer up-country trips. No need to book a charging slot or, when it's raining, get soaked plugging in the charger etc.

2 hours ago, brfsa2 said:

If it includes the sim card data for a whole year it's cheap then.

This is better than byd for sure. The wife atto3 sim data ended like 2 years already and BYD don't have a solution. I can't use my own otherwise the byd app stops working

When I took our Atto for its latest service in January BYD changed the 3-year old SIM to a Thai one (it came with a Singapore SIM apparently). I forget what it cost - couple of thousand I think - but there was no mention of any data package subscription. Everything still seems to work fine (or rather, haven't seen any weird messages on screen) but I must admit I don't use the BYD app, Carplay or Spotify.

6 hours ago, Andrew Dwyer said:

Yeah, i have been meaning to ask this question on here:

My BYD SIM expired here a month or two ago. I used my phone data and at first it seemed okay ( tbh i only use Spotify and Google Maps via Gpack ) but then it got a little weird and now sometimes it will only play the last 5 or 6 songs i played when last on WiFi ( played around with it in my car port using the house WiFi ) and other times it won’t do anything.

IMG_8741.jpeg

Bluetooth connected, Hotspot connected but still nothing, and i have this phrase at the bottom of this photo which confuses me:

IMG_8743.jpeg

From what i understood using your phone data would allow me to use Spotify and Google Maps ( via Gpack ) but neither now work.

My initial thoughts are that my phone data is weak ( 6 Mbps ) although it is perfectly adequate for using video streaming, Google maps, Spotify etc but just on my phone.

I buy a yearly 6 Mbps unlimited subscription which I just renewed in February so am loathe to buy another year at 10 Mbps for an additional 2,000 baht in case this doesn’t resolve the problem.

So, am I doing something wrong or is it not possible to use my phone data ( from the red circled sentence above ) or just lacking data speed ?

Would be interested to hear others opinion or suggestions from those who are in a similar position.

Note: I can use Apple CarPlay for both Spotify and G Maps but find them to be lesser versions via CarPlay and would much prefer the full versions o experienced from the BYD SIM Data.

To use your phone mobile data you must setup "Hotspot" on your "phone," repeat, your phone. You can then make a Wifi connection to your phone's Hotspot signal/mobile data. Then Google Maps, Spotify, etc., uses the mobile data from your phone's Hotspot signal.

In your picture above you are trying to use a Hotspot created on your "car" to create/broadcast a Wifi signal for others to connect to within your car; however, the Hotspot function on the car is limited/restricted only for Android Auto/Apple CarPlay interface...it can't be used to interface with other programs like Google Maps, Spotify, etc. Typically when people are using Android Auto/Apple CarPlay on their car they use a USB cable or bluetooth connection between the car and their phone.

Edited by Pib

image.png

On 4/24/2026 at 10:13 AM, brfsa2 said:

I wish I could go to 100% to have longer time on the road... normally I have stop at 90% when charging speed drops dramatically to below 10kW I usually hit the road at 90%

90% -> 10% only gets me 220km on highway. (SOH is already 93%, so battery is now only 54kWh)

These BYD cars can't sustain long highway drives, after 1-2 hours the battery and drive train are hitting the thermal limit of the cooling system.

I noticed on a recent trip that I still get slow speeds like 60-70kw at most from low SOC, then it goes very slow after 30 min of charging. I cannot reiterate more, these BYD cars really cannot sustain long trips. maybe the Seal or Sealion 7 might be able to do better, but Atto3 and Dolphin are <S H I T>!

Screenshot 2026-04-24 at 10.11.42 AM.png

At 85% SOC the charging rate drops to approx 30KW from 85-100%....that's part of the Atto's battery "normal" charging curve. That has nothing to do with thermal throttling; it's simply the max, safe charging rate above 85% for the 60.5KW EV Blade Battery. Safe in terms of maintaining long term battery capacity.....not trying to push-in/relocate more electrons/lithium ions than the battery can easily find a storage spot for.

My Atto 3 has never reached any thermal limit while driving (or charging). When the battery cooling system "fully" kicks-in varies depends on various factors....can vary thru-out the year as ambient temperature is a factor among other things. The highest battery temperature I've ever seen on my Atto will driving --which requires a couple of hours of sustained higher speed driving--is approx 43C.....then the cooling system will fully kick-in and brings the temperature down. But this works the electrically driving A/C compressor harder which uses more battery power. The blade battery (Gen 1) can safely operate at a temperature of 55-60C while discharging so it doesn't even come close to it's max safe operating temp while driving.....ditto while charging.

BYD Atto 3 Blade Battery (60.5KWH) "charging curve"....it's a stairsteps type curve. You can get around 88KW from approx 10% to 65% SOC......65% to 85% around 57KW....and then approx 30-32KW from 85% to 99%...and then from 99% to 100% which may only last approx 1 minute (or a lot less) you might briefly see a 16KW and 8KW charge rate. This is it's normal charging curve.

image.png

Edited by Pib

2 hours ago, Pib said:

To use your phone mobile data you must setup "Hotspot" on your "phone," repeat, your phone. You can then make a Wifi connection to your phone's Hotspot signal/mobile data. Then Google Maps, Spotify, etc., uses the mobile data from your phone's Hotspot signal.

In your picture above you are trying to use a Hotspot created on your "car" to create/broadcast a Wifi signal for others to connect to within your car; however, the Hotspot function on the car is limited/restricted only for Android Auto/Apple CarPlay interface...it can't be used to interface with other programs like Google Maps, Spotify, etc. Typically when people are using Android Auto/Apple CarPlay on their car they use a USB cable or bluetooth connection between the car and their phone.

Thanks @Pib , i will take a closer look at this in the morning.

On 4/24/2026 at 4:13 AM, brfsa2 said:

I wish I could go to 100% to have longer time on the road... normally I have stop at 90% when charging speed drops dramatically to below 10kW I usually hit the road at 90%

90% -> 10% only gets me 220km on highway. (SOH is already 93%, so battery is now only 54kWh)

These BYD cars can't sustain long highway drives, after 1-2 hours the battery and drive train are hitting the thermal limit of the cooling system.

How fast are you driving on the highway?

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11 hours ago, Pib said:

To use your phone mobile data you must setup "Hotspot" on your "phone," repeat, your phone. You can then make a Wifi connection to your phone's Hotspot signal/mobile data. Then Google Maps, Spotify, etc., uses the mobile data from your phone's Hotspot signal.

In your picture above you are trying to use a Hotspot created on your "car" to create/broadcast a Wifi signal for others to connect to within your car; however, the Hotspot function on the car is limited/restricted only for Android Auto/Apple CarPlay interface...it can't be used to interface with other programs like Google Maps, Spotify, etc. Typically when people are using Android Auto/Apple CarPlay on their car they use a USB cable or bluetooth connection between the car and their phone.

Thanks as usual, @Pib.

Of course it works now i have set WLAN to use my phone hotspot instead of the other way round 😞.

IMG_8754.jpeg

Ironically i have used my phone hotspot plenty ( when my wife’s monthly package runs out and to use my iPad when away from home) , guess i got sidetracked seeing hotspot in the car settings.

Plus the erratic behaviour of Spotify and Google Maps lead me to believe that it was weak data from my phone.

So, in my defence ……… nah, i got nothing 😞

19 hours ago, BKKBike09 said:

When I took our Atto for its latest service in January BYD changed the 3-year old SIM to a Thai one (it came with a Singapore SIM apparently). I forget what it cost - couple of thousand I think - but there was no mention of any data package subscription. Everything still seems to work fine (or rather, haven't seen any weird messages on screen) but I must admit I don't use the BYD app, Carplay or Spotify.

A SIM upgrade from the original Singapore SIM to the True SIM should have been free for you. It sure was about a year ago when BYD announced the availability of the SIM upgrade which I took advantage of---no charge to upgrade.

Are you sure the "few thousand" baht you paid wasn't for the "periodic checkup" you had done where the dealership also happened to upgrade/swap-out the SIM at the same time. Depending on when a person bought their BYD vehicle their vehicle purchase may or may not have come with "free periodic checkups." I bought my Atto in in Oct 2023 and I have "not" paid one stang for the 5,000, 20,000, 40,000 or 60,000Km period maintenance checkups....because at that time free periodic maintenance checkups for 8 years/160,000Km was provided. But BYD vehicles bought over the last year or so generally do not come with "free" maintenance checkups which is maybe your case?

Below are some snapshots to see if you have a monthly data allotment. Now if you show a monthly data allotment of "zero" Bytes but still show a few kilobytes (KB) being used in the "current day" that data is probably just some low level, core, basic data exchange between the car and the BYD servers doing some basic "mothership to car" communications. Like when I first opened the Data Monitor screen to take below snapshots a Current Day KB of "zero" was shown. Now after playing around for a few minutes on the infotainment screen and then checking the Current Day KB again it show 3KB being used....probably BYD mothership to vehicle low level basic communications which is separate from the 2GB data allotment per month for two years that the vehicle came when when first buying. Since the Singapore SIM to True SIM upgrade/swap-out only added 3 months to the 2 year original data allotment if you've had your vehicle more than 2 years 3 months your Data Allotment will probably show Zero. Zero data allotment means programs like Spotify, Google Map, browser, etc., which require a "data connection" will not fully function and/or give some error messages. And in below last snapshot if you press the "Data Usage" icon it will show what specific programs have been using data, HOWEVER, if the SIM's data allotment has expired in that Data Usage by program area it may still show "old" usage data from when the SIM still did have a monthly data allotment of 2GB.....it's not really current day/month usage....just a stale data reading.

image.png

image.png

image.png

Edited by Pib

To be clear, on my ICE Mazda CX30, I just plug my Android (with USB C cable) and I am using Android Auto, mainly for Google Map and some radio app ... we cannot do this on a EV car ?

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