Pib

If you feel the proof has already been provided then upload it again "with a short memo" which you feel will help explain the proof and/or point out where the proof is stated/provided Although you may feel the proof provided is clear as the nose on your face maybe it's really not that clear to the BOI reviewer and you need to gently & politely resubmit the proof "with memo." Throughout this l....o.....n.....g thread there are many posts where additional proof/docs were requested....the applicant then resubmitted the same proof/doc initially provided....and this time BOI was made happy. So, submit the requested docs/additional proof....if you don't your application will just gather cobwebs in the BOI "awaiting applicant to provide additional docs" box. Good luck...and just the fact BOI is already seriously reviewing your application after on a few days is a good thing. When the LTR program first kicked off several years ago sometimes it would take BOI over a month just to do a "first look" of your application.

Steps 2 and 3 are very basic steps...kinda like knocking on someone's door and then they let you in to sit down and talk. In Step 4 Under Consideration by Relevant Govt Agencies just means BOI (i.e., a govt agency) and other agencies will now review your application. I think BOI does the initial review before they forward it out for other govt agencies to review. How long this govt agencies review really takes will vary from individual to individual....but BOI's "goal" is for all agencies to complete the review within 20 working/business days....which works out to almost a 30 "calendar" days. Be sure to watch your LTR acct closely for changes and possible requests for additional documentation which can stop the 20 working day clock since BOI can't continue the review until they get the additional docs from you. Good luck.

Good article today/18 Nov 2024 in the Bangkok Post about issues affecting EV industry and actually the ICEV industry also such as sluggish sales for various reasons. Reasons such as slow economic growth, high household debt, and an ongoing vehicles price war. An ongoing price war which makes people reluctant to buy a new vehicle right now (i.e., buy/finance this month only to find out next month's promotion significantly lowers the vehicle's price). https://www.bangkokpost.com/business/motoring/2904017/raft-of-issues-hindering-ev-industry Raft of issues hindering EV industry

Based on what I've seen in many malls, like Central Malls, AC Type 2 (a.k.a., slow charger) are predominately what you will see in many malls. Yes, quite a few malls also have CCS/DC Fast Chargers also, but I think the AC slow chargers greatly outnumber the number of DC chargers in malls. Maybe because the malls have limited space and available power for the bulky/big/high power DC chargers and the malls figure many mall customers many times may want a slower charging process as they spend a couple of hours in the mall dining, seeing a movie, just taking their time shopping....don't want to have to run out after 30 minutes to move the car to a new parking space. Below is a partial quote from a website listing chargers in some Central malls around Thailand....I cleaned it up a little by deleting some parts/malls that didn't define what type of charger (i.e., AC slow or DC fast) was in the mall. Anywhere you'll see "Type 2" below means an AC slow charger; CCS a fast charger. https://www.motorist.co.th/en/article/2728/list-of-ev-charging-stations-in-shopping-malls-2024 CentralWorld Tesla Supercharger at B1 floor, located at parking spots G36 - G37 and F36 - F38 On | ion EV Charging Station at B1 floor, located at parking spots P30 - Q33 Evolt electric vehicle charging station with Type 2 connectors at B1 floor, located at parking spots Q26 - Q28 and P27 - P28 Central Village Suvarnabhumi Outdoor parking area adjacent to Phra Phrom Shrine, electric vehicle charging station with Type 2 connectors (12 spots), CCS/SAE (8 spots), and Tesla Supercharger Central Grand Rama 9 Parking area at G floor, slot E Parking area at 3rd floor - ½, Type 2 (11 spots) Parking area at 3B floor, Type 2 (10 spots) Central Eastville Parking area at G floor, zone F16, Type 2 (13 spots) Parking area at B1 floor, Type 2 (4 plots) Central Westgate Parking area at G floor, zone G17 Parking area at 2nd floor, Type 2 (12 spots) Central Ladprao Parking area at 1st floor, zone C14 Parking area at 2nd floor, zone E20 - E24, Type 2 (11 spots) Parking area at 3rd floor, Tesla Supercharger V3 (11 spots) Central Pinklao Parking area at G floor, zone D03 - D06, Type 2 (12 spots) Parking area at 2nd floor, zone E4 Central Rama 2 Parking area at G floor, Type CCS/SAE (8 spots) Parking area at 1st floor, Sun Zone, zone A07, Type 2 (8 spots) Central Rama 3 Parking area at G floor, near the mall entrance Parking area at G floor, Type CCS/SAE (4 spots) Parking area at 3rd floor, Type 2 (8 spots) Central Chaengwattana Parking area at 3rd floor, Building B, zone A04, Type 2 (9 spots) Central Rattanathibet Parking area at 3rd floor, zone P6 Central Sala Ya Parking area at LG floor, Type 2 (12 spots) Central Chonburi Parking area at G floor, VIP Car zone Parking area at 2nd floor, Type 2 (12 spots) Central Pattaya Beach Parking area at 2nd floor, zone D07, Type 2 (12 spots) Central Marina Type 2 (6 spots) Central Sriracha Parking area at LG floor, zone N07 - N09, Type 2 (7 spots) Parking area at G floor, Type 2 (10 spots) Central Rayong Parking area at G floor, zone M12 - M14, Type 2 (12 spots) Central Chiang Rai Type 2 (7 spots) Central Phuket Festival Type 2 (10 spots) Central Hat Yai Parking area at G floor, Type 2 (12 spots) Central Nakhon Si Thammarat Type 2 (8 spots) Central Khon Kaen Parking area at 1st floor, zone C01, Type 2 (12 spots) Central Udon Thani Parking area at 1st floor, zone 3A Parking area at 2nd floor, zone OE-OF, Type 2 (10 spots) Central Ayutthaya Parking area at LG floor, Type 2 (7 spots) Parking area at B1 floor, Type CCS/SAE (8 spots) Central Phitsanulok Type 2 (8 spots)

Yeap...as @digbethsaid not in Thailand yet. Below are a couple of snapshots from the Tesla app showing Tesla Supercharger locations in Thailand for "Tesla EVs" and then "non-Tesla EVs." 1st snapshot is with the app set to show all Tesla chargers available for Tesla EVs. And then the 2nd snapshot shows the app set to display those Tesla locations in Thailand which also support non-Tesla EVs. 1st Snapshot...Tesla Superchargers for "Tesla EVs" in Thailand 2nd Snapshot...Tesla Supercharger locations in Thailand for "non-Tesla" EVs. Results: None

Some more charging curves of some EV models most people have heard of. Charging curves that may not have a staircase curve at all but more like a ramp curve.....or a staircase with with an unexpected step-up for a brief period and then resuming a steeping down pattern. All kinds of charging curve shapes. Toyota bZ4X Tesla Model Y BYD Dolphin Zeekr X

Below website is one of the best for specs, charging curve, charging time, etc., for EV. Now keep in mind the site's charging data they are using chargers which "equal/exceed" the EV;s highest charging capability...that is, if the EV can accept 150KW (or higher) then the EV is hooked to a charger that can fully satisfy that need at 150KW (or higher. But for many people they will not be able to locate/use a "fully satisfying" DC charger. 😁 And considering each EV's charging curve will be different and often graphs-out to a strange shape curve instead of neat staircase type curve it can make it hard for a layman to get an accurate charging time just using math....but graphing the charging curve and using a stopwatch with a fully satisfying charger is more accurate. Below are a few snapshots regarding the charging times for a BYD Seal with 85KW battery and 150KW max charging rate. Keep in mind the website is using a "fully satisfying" charger....can give the EV every KW the EV asks for. https://evkx.net/models/byd/seal/ Seal Charging curve....note it has a staircase stepping shape "except" from 0-10% (typical for EVs) and from approx 65%-75% which is unique to the Seal.

Yeap...even if we lived in a world where all DC chargers had BIG charging capability, like say at least 360KW, a person needs to consider the "charging curve" of any EV they plan to buy "if", repeat, if a HIGH charging rate/fastest possible charging time is a priority/top consideration as to whether you buy or not. Here's a real life example of how a vehicle's charging curve affects charging rate/speed. I own a 2023 Atto 3 Extended Range with 60.5KW battery and max charging rate of 89KW. But that charging rate is only achievable at a DC charger with at least 180KW capability where it will pump-out 90KW to each of its two DC outlet cables. Now of course a single connector DC charger with 90KW capability would work also but I haven't run across any such single outlet charger's yet with 90KW. The Atto's charging curve allows an approx 89KW max charging rate...and this max charging rate only occurs between approx 5% to 63%. Then from approx 64% to 85% the max rate allowed is approx 57KW... then from approx 86% to 99% the max rate allowed is approx 32KW.. and finally from 99% to 100% it tapers down to around16KW. Charging "steps"...a charging staircase so to speak is in affect. Note: and I have seen up to 89.1KW charging rate twice on my Atto when I was doing some DC charging "tests" at an EA Anywhere 180KW charger around 9 months ago. And that "very same charger" has since been downgraded from an 180KW charger to a 110KW charger with one 60KW outlet and one 50KW outlet. Don't know why EA Anywhere had to downgrade the charger's KW capability...maybe a power limitation of feeding power to it...maybe it had problems in trying to operated at 180KW. Maybe EA Anywhere swapped-out the charger's guts to a lower capacity but if they did they retained the charger's battle-scared cabinet (and cables) which still has the same cracked DC lights, scratches in certain places, and other visible marks that are easy to remember. A few weeks ago I went to above EA Anywhere charger to do a brief charging test so I could see the OBD2 data and found out this new 110KW configuration with DC cable 1 allowing 60KW max and the DC Cable 2 allowing 50KW max. I had to use DC Cable 2 since several motorcycles were parked in the DC Cable 1 space blocking its usage. Anyway, my Atto would not charge anywhere close to a 50KW rate since I was using the DC cable 2 which only allowed 50KW max. Why wouldn't it provide at least 50KW you may wonder? Since my Atto was already charged to approx 70% when starting the test where the EV allows up to a 57KW charge rate the charger could not provide more than 50KW "even if the EV allowed it." But since the EV was asking for 57KW but the charger would respond with "I can only give a max of 50KW...is that good enough?"....well, the EV was responding based on its charging curve design where 50KW is not one of its charging curve steps it must request the charger provide 32KW which is one of the EV's charging curve steps and the charger and EV agree to provide 32KW....the EV is now charging at 32KW because it's one of vehicle's allowed charging curve "steps" as shown in the Atto charging curve below. And a few days ago at another charger I used a single outlet ReverSharger 50KW charger (getting some free electrons) when the Atto was at around the 50% charge level and its charging curve would allow up to a 89KW charging curve step (or even a 57KW step) what the charger and EV ended up agreeing to was a 32KW rate since the charger could only provide 50KW max and couldn't satisfy a 89 or 57KW charging curve step so the charger ended up providing 32KW. Yeap....when evaluating an EV's advertised/hyped max charging rate be sure to take into considering the "charging curve" of the EV and available DC chargers to meet the requirements of the EV's charging curve. Buying an EV that has some HIGH charging max charging rate is not going to provide you much benefit if there are no or few DC charger's available that can meet that HIGH rate and/or the EV's charging curve is actually going to operate at some much lower charging rates for a lot of the EV's 0 to 100% charge range. Atto 3 Charging Curve for Example https://evkx.net/models/byd/atto_3/atto_3/chargingcurve/

DC charging rate of an EV can be way overhyped. Let's take the 150KW DC charging rate of the Sealion with a 91KWH battery. First, to charge at a 150KW rate at person will need to use a 150KW or greater DC charger which are very limited in Thailand. The great, great majority of DC Fast Chargers in Thailand are 120KW (or less) chargers with two charging outlets that share this 120KW which means when two EV are charging then 60KW would be the max achievable per vehicle. And even if there is only one vehicle at the charger each outlet on that 120KW charger "might still be limited" to 60KW max instead of it being able to pump-out120KW to the outlet---depends on the charger's design. Using the PTT Station Pluz charging app and setting it to only show their DC chargers with at least 147KW and higher capability there were only 6 locations in all of Thailand on the PTT charging network. Second, even if a person is connected to some HUGE charger...say a 360KW charger...the Sealion's charging curve will only allow 150KW for "part of its charging process"...the approx 15% to 45% part....between 46% to 85% only approx 80KW max...and then above 85% around 45KW max. https://evkx.net/models/byd/sealion_7/sealion_7_excellence/chargingcurve/ An EV having a high charging rate capability is a good thing but a person can only take advantage of that higher charging rate if DC chargers exist to provide the required high power....and of course what portion of the EV's charging curve can accept the highest rate because it will "not" be for its entire charging curve from 0 to 100% with current battery technology.

See weblink for full story https://www.bangkokpost.com/business/motoring/2902652/chinas-ev-sector-reaches-10-million-production-milestone-overcapacity-fears-deepen PUBLISHED : 15 Nov 2024 at 09:26 WRITER: South China Morning Post

From some googling/social media it appears this has been announced in several European countries....Belgium, Spain, UK, etc. Seems to be getting a good reception from most customers since they have to pay for the service checkups; whereas, in Thailand BYD service check-ups are free.

Been available ever since I've had my Atto which I got Oct 2023....and it was available even before then.

Now if you drawing "SSI" then No. SSI helps those who have limited income and resources. If you receive SSI, it is not possible to continue drawing benefits while you live abroad. The SSA will not continue your check if you are in another country. Once you are outside the United States or one of the territories for 30 days, your benefits will stop. After returning to the United States and remaining in the country for at least 30 days, you can request your benefits again.

Yes https://www.ssa.gov/international/payments_outsideUS.html

So, if I understand above correctly if a person does the SIM swap/upgrade say with 11 months remaining of the current original SIM 24 subscription then the person's subscription then they will have 14 months remaining? And besides OTA updates stopping after the subscription ends being able to communicate with the EV using the BYD app like to turn on A/C, checking charge level, look doors, etc., from a distance would also probably end assuming the end of the subscription shuts down the SIM completely. I know for a fact from my testing that even if you turn off the Wifi "and" mobile data connections in the car's infotainment system the BYD app is still able to communicate with the car as it's using the SIM's basic mobile text/calling system of the cell network vs the data portion used for connecting to the internet.

When I picked up my Atto in Oct 2023 the dealership said the SIM subscription period was for 2 years but BYD was talking about extending it to 3 years...and was still developing a subscription plan as to if it would be free or cost X-amount, etc. . Basically the rep (who could speak a fair amount of English) said BYD was still deciding on how they would handle SIM upgrades, extending subscriptions in Thailand, etc.,...it was still a work in progress.

Last night after the Rever Customer Support Chat line closed at 8pm I sent them a message showing above BYD Songkhla SIM upgrade poster. This morming around 11am Rever responded saying: "If you car is approaching 2 years of service, you can get the SIM card replacement service at our service center." A few hours later I went to my Bangkok BYD dealership and showed them a snapshot of the BYD Songkhla SIM poster...and fortunately I was able to speak to a rep who knew some English. He said the SIM swap includes multimedia software upgrade where GBox, Youtube, Netflix, etc., are added. Their service dept made me an appt for two weeks down the road to get it installed...install and software upgrade takes a couple of hours. Most anything my dealership does service-wise takes at least 2 hours (even if it seems to be a 10 minute job)....it's like a 2 hour service window is their minimum for any task of significance. Now I intentionally didn't ask if this SIM swap/upgrade "extends" the 2 year subscription of my current SIM or will the original SIM 2 year period still be ticking for this new SIM....or does a new subscription period of X-years begin. Also didn't ask if it provides more than a 2GB allotment per month. I intentionally didn't ask for more detailed info as the English speaking rep got pulled away to help another customer interested in buying a car.... plus, at this point I just want to get the SIM upgrade soonest even if it don't extended my current 2 year subscription which doesn't expire for another 11 months....I will ask the detailed questions after the SIM upgrade as to remaining subscription period, GB allotment, etc.

Yeap...so for any Seal owner the 2 year SIM free subscription would not be expiring before Sep 2025. But after seeing the Facebook page I posted above a few minutes go it appears what the Rever Automotive Help/Talk To Us representative told me during the online chat session may have been incorrect...the representative was apparently talking the typical SIM expiration guidance instead of info regarding the a BYD SIM swap/upgrade program talked about in above SongKhla BYD post. And maybe the Rever Automotive rep simply didn't know anything about SIM swap/upgrade program....missed a company memo so to speak. I will go to my Bangkok BYD dealership over the coming days with the Songkhla Facebook post in-hand and ask for more info such as is it available to me right now for my 2023 Atto and/or is there some fineprint related to the SIM swap/upgrade. This may turn out to be like the free Rat Guard battery modification that I would have never known about unless a Chonburi BYD dealership put info on a Facebook page about it....I don't remember ever seeing anything about it on the Rever webpage....and my dealership never contacted me about its availability. I then went to my Bangkok BYD dealership...asked about the Rate Guard install....and they said yeap and then scheduled the install for a few weeks later. Yeap...this SIM swap/upgrade program once again may be some upgrade BYD does not advertise "widely"; instead, just leaves it up to their local dealerships to get the word out or the customer to find out about thru the grapevine/social media.

Snapshot from the a BYD Facebook page....the BYD Sonkhla dealership is advertising the SIM swap/upgrade. This is kinda like how I found out about the Atto/Dolphin Rat Guard free modification from a Chonburi/Pataya BYD Facebook page....and when I went to my Bangkok BYD dealership they schedule an install for me. I'll stop by my dealership here in Bangkok over the coming days and ask....will show them below snapshot. It says it for the Atto, Dolphin, and Seal.

A few minutes ago I used the Rever Automotive app to ask under the app's Help "Talk To Use" section about SIM swap/upgrade as there was Facebook chatter about it. I asked them if there is such a SIM swap/upgrade program. And I told them I had a 2023 Atto. I got a response within about 10 minutes saying a person can avail of the SIM card replacement service at the car showroom if your SIM card is nearing the 2 year expiration. Simply provide the VIN number to the showroom and you can schedule an appointment to have the SIM card replaced. Maybe some of this SIM replacement chatter is dealing with those folks who bought their BYD vehicle in 2022/early 2023 which means their SIM card subscription would be expiring soon or recently expired....just guessing. Probably best for a person to visit their dealership and ask face-to-face regarding your specific BYD vehicle.

Yea....I take his videos with a HUGE grain of salt. It's not uncommon for him to add a half dozen or so new videos to his channel each day....all of which is him basically expressing his opinion on the newly released news articles. This video is probably based on a China Post article from about a week ago talking CATL "hopes to achieve small scale production by 2027" of this whiz-bang solid state battery. I expect "by 2027" means by 31 Dec 2027 around 3 years from now. So, maybe we would see this whiz-bang solid state battery in some 2028 model EVs. And maybe Toyota's imaginary solid state battery they have been talking for years and years already will be out before 2027 if they can ever break their addiction to old technology NiMH Nickel Medal Hydride batteries. https://interestingengineering.com/energy/china-catl-solid-state-battery-production-by-2027 Updated: Nov 07, 2024 05:21 AM EST CATL goes all in for 500 Wh/kg solid-state EV battery mass production CATL’s prototype solid-state batteries have an impressive energy density of 500 Wh/kg, a 40 percent improvement over current lithium-ion batteries that typically reach 350 Wh/kg. China’s Contemporary Amperex Technology Co., Limited (CATL), a global leader in lithium-ion battery development and manufacturing, is significantly escalating its investment in all-solid-state battery technology. A Chinese local media outlet, Late Post, has reported that the company aims to achieve small-scale volume production of its all-solid-state battery by 2027.

See below 16 Oct 2024 CNBC news article regarding solid state batteries and how semi-solid state batteries may be in our future. Partial quote below and full article at the weblink. Maybe the stepping stone to solid state batteries will be semi-solid state batteries. https://www.cnbc.com/2024/10/16/the-race-for-next-gen-ev-batteries-may-soon-pivot-to-semi-solid-state.html The solid-state batteries hype is fading – prompting auto giants to consider alternatives Key Points Solid-state batteries have long been billed as the “holy grail” of sustainable driving. Proponents say they offer safer, cheaper and more powerful batteries for electric vehicles (EVs), as well as faster charging times. There could be another option, however: semi-solid-state batteries, which use a hybrid design of solid electrolyte and liquid electrolyte. “Five years ago, if we talked about this, I would have been so excited about solid-state batteries,” Transport & Environment’s Julia Poliscanova said. “But somehow ... there is some kind of barrier today.”

I've lost track of how many times the Electric Viking has started off his videos by saying: ".....it's game, set, match...." regarding EVs killing off ICEVs sooner vs later due to some announcement of improved technology by some battery maker or EV maker. I agree that solid state batteries will be a game changer but how fast their widespread availability/use occurs is probably more than just a few years away....I'm guessing around 5 years is more realistic. I figure it will be similar to the hard drive to solid state drive (SSD) to M2 drive transition that took around 10 years for widespread transition to SSD and then to M2 even though HHDs are still being made mostly for data centers and cheap storage. But I did like the Electric Viking's statement that this CATL solid state battery announcement is not like the Toyota's "imaginary" solid state battery that Toyota has being talking near term release for years and years now. 😁

My goodness is the cut-throat EV price war coming to an end....maybe moving into a slower pace trench warfare phase. See below 11 Nov AutoLifeThailand article. https://autolifethailand.tv/avatr-no-discount/ AVATR cancels “cash-back” discount campaign to maintain brand image Mr. Anuwat Inthraphuwasak, Chairman of the Executive Board of Infinite Automobile Co., Ltd., revealed that from the joint meeting of " Infinite Automobile " and " Eternity At One " as the official distributor of premium electric cars under the brand AVATR ( Avatar ) , the latest conclusion is to cancel the provision of cash discounts and marketing activities related to cash back discounts to maintain the image of the premium brand. Previously, Chang'an Auto Southeast Asia Co., Ltd., the parent company, announced a sales promotion ( promotion ) to provide a cash discount of 100,000 baht during the launch in September, limited to 200 cars, which has been fully paid out. In October, there was a cash discount campaign of 60,000 baht, which the original plan was to provide this discount until the end of 2024 . Read related news: AVATR distributor is generous! Pays 10 million to give discounts to customers who exceed the first lot quota. The cancellation is expected to be officially announced at the latest during the upcoming Motor Expo 2024, or at the earliest on November 15 , 2024 . While from now on, it will focus on presenting the brand's premium luxury and technology that meets the needs of consumers, which is confident that it can compete with competitors in the same level in the market. However, the supply of the first batch of AVATR 11 to enter the country is currently 500 units. There is a shortage of some supplies, with the first batch of only about 300 units. We are in the process of expediting understanding with consumers and finding solutions to achieve maximum satisfaction.

I"m going to guess that although the MG BMS indicates 100% once a certain cell voltage is reached for a few seconds---a voltage such as at least 3.65V which is generally considered the 100% charged voltage level for a LFP cell---the BMS knows that even when 3.65V is initially reached if continuing to charge at a constant voltage of 3.65V but at a low current (i.e., just an amp or two) for X-period of time the battery can still absorb a little more capacity (maybe a percent or two) without damage to the cell and also help in the cells balancing process. The BMS might be programmed to continue charging X-amount additional minutes (like maybe 20 minutes, 30 minutes, etc) after reaching 3.65V average cell voltage. OR, it might be programmed to continue charging at a "low" current level...lets just say 1 or 2A for discussion purposes....and it will then continue tapering "down" that amperage level to around a few tenths of an amp and let's say completely stop charging when the current reaches 0.2A as the battery capacity is now full-full. This on-top absorption period (i.e., when initially reaching 3.65V which represent 100% charged) is not to be confused with the main/primary/long absorption period on the way to reaching a certain voltage level like 3.65V. And a LFP cell can still be charged to 100% KWH/AH capacity even if not allowing it to reach 3.65V but instead just charging at 3.45V "for a longer time" which is increasing the absorption period. But if not wanting to take extra time to maximize charge capacity then allowing it to charge up to 3.65V gets the charging done faster. I expect EV manufacturers know their EV customers want the charging done as quick as possible and the way to do that is to allow cell charging up to 3.65V versus only allowing 3.45V or 3.55V with an extended, low amperage charge period. MG may have found a good compromise in showing 100% charged which is when most drivers would probably unhook the charger to continue their trip OR if the customer can wait a little longer to let the battery continue to charge at a low amperage level (i.e., that top-in extra absorption period) then the battery can take in a little more capacity (maybe get a little more Km range from a cell balancing/adding just a little more KWH capacity) although the charge percentage will not increase above 100%....and maybe even the Km range will not increase but as you drive along it's actually decreasing at a slightly slower rate since the battery took a little more capacity from that extra absorption period. There are different ways at different voltage and current levels to fully charge a 3.2V LFP or 3.6 NMC cell. I expect battery/EV manufacturers have different opinions on how they will build and charge their BMS and battery pack. Edit: oh, just remembered, regarding my BYD Atto final bit of charging. From monitoring OBD2 data while DC and/or AC charging and the percent charged indicator on the car is displaying 99% you can tell that very soon it's going to change from 99% to 100" when the "calculating...." message starts displaying which I assume means the the system is recalculating/recalibrating the BMS and charge percentage indication system. Although going from 99 to 100% takes around 5 minutes on a 7KW wall charger at around the 1 to 2 minutes to go point the "calculating...." message appears and this always seems to appear when the cell with the lowest voltage finally reaches 3.55V, repeat, 3.55V, for at least a few seconds while the cell with the max voltage is usually indicating around 3.65-3.75 volts. That "calculating..." message does not appear until the cell with the lowest voltage reaches 3.55V for a few seconds....then just a minute or so later the charging stops. And if using a DC charger that same 3.55V min cell voltage still applies regarding appearance of the "calculating...." message, but since you are still pumping in a higher current than a wall charger would be the charging completes within 15 to 30 seconds. 100% finally appears and zero charging current is occurring. So, it seems BYD's approach is to get "each & every" cell of the battery pack (126 cells in my 60.5/KWH battery pack) up to at least 3.55V and then it considers the pack fully charged....time to start "recalculating /recalibrating" the BMS system. And from googling/watching YT videos it seems 3.55V is a very popular max cell charging voltage in the DIY home solar community as it's considered to have brought a cell to full 100% and will have been enough voltage to properly balance it when that cell is just one of many cells comprising a battery pack where there is always going to be a little bit of cell imbalance.