Xiaomi M365 / Pro / PRO2 / 1S / Additional / Extra Battery Upgrade

[@tatech8696]

Hi Guys. You can buy a ready-made connectors kit for a second battery. www.ebay.co.uk/itm/224055311121 36V Battery pack with Samsung cells: www.ebay.co.uk/usr/tompie

[@bakarekelvin5029]

Please I can’t connect it I don’t even know the voltage to add to my battery

[@tatech8696]

If you don't know the basics of electronics, it's better to let someone else do it for you

[@nvau3644]

Hi! Can I use any 36V battery, let's say 36V 7ah ?

[@tatech8696]

@@nvau3644 Hi. I recommend above 6Ah and must have built-in "BMS"

[@frejusamon]

Nice video , can you help me for ninebot max ?

[@georgebailey3349]

This guy is a genius when it comes to e-batteries, he built me a 54v battery with smart bms for my ebike, best battery I've ever had, keep up the good work👍👍👍

[@tatech8696]

Thank you very much George for this very nice comment.

[@faz.MezCapital]

Most satisfying thing I've seen my inner geek was doing back flips. The fact that nothing was rushed and everything was done to a excellent standard!

[@robertclelland6847]

He's no silly man. That's for sure. He sure does know what he's doing. Excellent

[@tatech8696]

Thanks Robert 👍

[@TremendousTyius26]

So cool!! I want this for my Hiboy S2 Scooter 🛴 and also with that range, I’ll definitely will do my Postmates fleet delivery with that range.

[@azzabbooii112233]

Can anybody help me find a battery like the ebay links as he doesnt have them in stock or sell them anymore ? I'm looking for a 12ah or higher if possible and for them to have the bms and case like the samsung ones he recommends

[@maxtamcpherson8869]

What a top dude replied to my message and even helped with advice and direction 👍 big shout. Also i have purchased the wire conversion from your ebay site to support what your doing instead of making my own. Nice one

[@tatech8696]

Thanks for this comment and support. I really appreciate that 👍

[@maxtamcpherson8869]

@@tatech8696 hi sorry to bother you again but just a quick question on the battery 2. As its connected in series with battery 1 and charged through the scooter port will battery 2 still balance charge as the DC imput for battery 2 will not be used and im assuming the BMS utilisation would be via the DC imput on battery 2 pack. Or will the scooter BMS via the scooter imput charge and balance both batteries. Thanks

[@tatech8696]

Hi. You have to connect both batteries in parallel. Charging both batteries via scooter port will not balance the cells of the 2nd battery unless single port BMS is used in the battery pack. You can also disconnect the extra battery once a month and charge it via a battery charging port to balance the battery cells.

[@maxtamcpherson8869]

@@tatech8696 perfect

[@MPASAKAS1]

Hi can i do the same with the 365 not pro?

[@Vilm0r]

T&A Tech: be careful with the aluminum shavings from drilling. Those inside the tube may end up in the bms/battery area and cause short circuit.

[@snappyjunexzy]

You’re a good builder bro. You should also do some heave duty scooter external battery connection too as there is none here in youtube so far. You could get a lot or views. EKscooters like, Ultron,Dualtron, Kaabo, Weped and exc

[@tatech8696]

Hi. Thanks for nice comment. Unfortunately, I do not have access to these scooters but if there is an opportunity I will do a similar tutorial. Please subscribe, like and share my channel to others.

[@jmjm7494]

I was thinking of doing the same thing. I think the batteries for my remote control cars will work. You should start selling the ready made connector. I would purchase it. I already wrote gotrax asking if could make a second battery for my scooter. It started with just going to work, but now I take it everywhere. I need to extend my scooter by another 5 miles, then I could get rid of my car.

[@tatech8696]

Thanks for your comment. I’m already selling the ready made connectors if you would like to buy it please click the link in pinned comment.

[@angeladuffy6124]

This guy is brilliant and can fix anything. 👍🏼👍🏼👍🏼😘

[@tatech8696]

Thanks Angela 😊

[@davidthomson6837]

Can he fix my knees?? 😭😭

[@angeladuffy6124]

@@davidthomson6837 do yoga lol xxxx

[@davidthomson6837]

@@angeladuffy6124, I'll yoga you on the heed the noo 🙏😀

[@angeladuffy6124]

@@davidthomson6837 you haven't got the balls lol . Xxx

[@aaroncorfield8740]

That looks cool but i cant believe i sat there for 12.30mins and listened to that music 😂😂

[@mikhailsnetkov3659]

I believe It is better to have a auto fuse holder with 10..15A fuse on the "+" way from second battery just for safety. This is just in case if somehow one battery is empty and second is loaded. Current between can be high and damage BMS. Protection is never exessive.

[@bunsoali5910]

If you are electrical engineer this is very easy

[@tomko1978]

Dziękujemy.

[@DIYwithBatteries]

Nice video Dude! 👍 Those 18650's are perfect.

[@tatech8696]

Thanks mate

[@jefpostmus109]

heya ! great vid.. will this work for the pro 2 as well?

[@fitfight8271]

Great video!! Thanks for so useful info.I just subscribed your channel!

[@tatech8696]

Thanks Fit & Fight

[@essmac3453]

Nice vid. Very informative. What are the red and black plastic things you use to cover and melt on the wires called please. Thank you for another great vid.

[@tatech8696]

Hi.Thanks for your comment. They are called "heat shrink tubes" you can found them on ebay or amazon

[@absent_]

What brand is the little burner u use to melt the plastic? Thnx in advance. 👍🏼

[@tatech8696]

Hi. Search on Aliexpress "Welding torch Pen Lighter" I use this over 2 years

[@AJ-we9kd]

Would it be a good idea to put a diode to avoid battery drain of smaller 18v battery? Could it cause problems in situations where you regen ?

[@sirstigfalkengard229]

Leik to See that vi May not drive more Than 18,km,t here in DENMARK 🇩🇰 thats kaos i vil give muts for 35km,t but dount nou hvot komponent or hvot keind of Electronics to Mine so et mabi only a dream but thanks for a luk in your realitet of a faster live🤪👍🏾👍🏻🇩🇰🤧

[@MrAbrilexan]

Ok man. Thankx so much

[@flitsies]

Just a thought here but wouldn't you eliminate the problems of the scooter going into charge mode by simply connecting both batteries to the controller rather than one to the controller and the other piggy backing through the battery. That's what I did with my bike, both batteries go through the controller on one cable, thus they are in parallel, had I done it this way, I'm sure I would have had issues with charging. But as it stands I charge both batteries together off the same charge circuit. So instead of going battery controller battery, go battery, battery controller, it's in parallel so it shouldn't make any difference, so long as both batteries start at the same level on the first charge.

[@badiraslan]

Thanks for the good and professional presentation, but my question is I notice that you connect fuse 25 A, but when you make the installation I didn't see it ...!!did you remove it as we don't need it ...is it necessary to connect this fuse or not.., Regards

[@sparkyboom3434]

Where can I get that bag with the clip? Thanks

[@maurigno]

Bravissimo!!! Ottimo video

[@tatech8696]

Grazie per il tuo commento

[@Megatron138]

This video has been so helpful sir, thank you. I’m on my final steps and I’m a little nervous about charging, as I only have the OEM charger for my M365 Pro. My question: if the main battery (max capacity) is 42v and my new external is 36v...besides dropping both batteries to 36v (before connection), should I also update the firmware with the selection of Battery Voltage Limit set to 36v instead of 42v? Your guidance is massively appreciated.

[@tatech8696]

Hi. Thanks for comment. Your external battery will also have around 42V in full charge (36V nominally, 31 - 32V cut off). Do not make any changes to the "Battery Voltage Limit" section. You must to make a custom firmware and enable "Remove charging mode"

[@Megatron138]

@@tatech8696 Bad news my friend. I think something went wrong with the firmware update. I followed all instructions for using DownG, at least I believe I did. The firmware update completed...and then the scooter froze up. It would not shut off, or respond in anyway button presses...I couldn't shut the light off, the motor wouldn't turn and the system would not turn off. I had to pull the battery cable to get it to power down. At this point, I cannot get DownG to reconnect to the scooter (to try the flash again). Bluetooth connects, but I get the error of "canceled due to retry" when running the Version check. So I have two questions, well 3 actually. 1. Can I use the Xiamoi - Mi Home app to get back to the factory default? 2. Was it my BLE and Firmware Versions that caused the issue. I made note of them before I attempted the firmware update (BLE = 0110, Firmware = 0166) 3. Would you be willing to accept payment via your Paypal for your assistance? You have been very kind to all on your channel. I would like to compensate you for your time in helping me.

[@cosmos69]

You can not limit the charging voltage by firmware, that is just pointless. Why don't you add your external voltage to 42V.

[@Hydropanic1]

@@Megatron138 It seems like your BLE is dead, the only way to flash it is to ST-Link it

[@Megatron138]

@@Hydropanic1 hey!!! Thanks for the input. Your assessment is 100% correct. I did gave an ST-Link a try. The learning how to solder was really fun but eventually just replaced the BLE and bought a Rita. It works flawlessly. And while I’m happy to have learned so much about my scooter’s systems, Rita was the way to go. Highly recommended.

[@maxtamcpherson8869]

Hi thought i had sent my question but think i forgot to press send lol . Firstly thanks for the fantastic vid instructions . My question are , Did you remove or conceal the additional power charging jack on Battery 2 and perform the full charge through the scooter port , also if using the original Xiaomi M365 pro supplied charger what are you charging times coming back as ? I ask as the standard battery is around 5 to 8 hours so does that mean this one is in excess of 12 hours to fully charge from 0. Also can you tell me the size of the bolts you used to connect bag to the scooter pls ?

[@tatech8696]

Hi Maxta. Thanks for the nice comment. I charge both batteries via the original scooter port and conceal the additional power charging port. Some people charge both batteries via additional battery charge port but I haven't checked it yet. Yes, the charging time will increase in proportion to the capacity of the second battery. The purchase of a more powerful "42V 3A" charger may be a good solution. The original charger is 1.7A so the charging should be almost twice as fast. I used M8x30 bolts but some people do not recommend drilling into a scooter tube because it weakens it. I have been riding on my scooter with two holes last two years and I have no issue (I used my girlfriend's scooter on the video). A good solution if you have the option is to print on a 3D printer "Batttery mount bracket".

[@tatech8696]

42V 3A DC Connector Quick Power Charger: uk.banggood.com/42V-3A-DC-Connector-Quick-Power-Charger-Adapter-For-Xiaomi-M365M187PRO-Ninebot-ES1-4-Electric-Scooter-p-1575839.html?gpla=1&gmcCountry=GB&currency=GBP&createTmp=1&ad_id=323612825005&gclid=Cj0KCQjwlN32BRCCARIsADZ-J4s1dVpL-TnJQMSLiRC_Z5Lx7Ecb3TumHwXitXa1io87fuXNLOX-rqAaApirEALw_wcB&ID=47184&cur_warehouse=CN

[@tatech8696]

3D additional battery mount: www.thingiverse.com/thing:3479439

[@billadmond9450]

@@tatech8696 Thanks for the clarification. The Emove Cruiser which have a 52V 30Ah battery pack is supplied with a "pity" 2A charger, why this to save money? It takes 13 hours to charge the batteries and adding a similar additional pack will double the time so what charger do you suggest, just more A like 4A charger?

[@bbrrrrrrr]

@@tatech8696 can I use this one on my m365 pro without the extra battery so it charges faster?

[@zerovikings5852]

To be fair for the price it’s not possible to buy a scooter with that much battery. It’s really helpful to own double the capacity

[@umloginqualquer]

Great video, thank you! But I have one question: can I use the charging port of the scooter as a voltage OUTPUT? I want to use the scooter as a powerbank, then connect it to a buck converter...

[@panagiotistotsikas9234]

I would like to ask if this charge is compatible for xiaomi mi essential?

[@caidzz9248]

Hey i have a few questions, when you say make sure both battereis are the same voltage do you mean that the external battery voltage is the a battery percent? or is it a fixed number and if it is like a battery percent how do i measure both voltages? Also i plan to use a CFW to make speed faster is there away to check that option box when i use someone elses cfw options? Also do i have to drill holes or can i just connect the battery box to the stem/board buy velcro or cable ties and alsocan i but the battery directly in the box or do i have to put something at the bottom? Also is the Stock charger tha comes with the scooter fine to charge and is it safe? Cheers for the video

[@Bornmong]

So nice and clean.

[@aguypassingby1945]

👍👍👍👍 u're the best

[@tatech8696]

Thanks

[@LoeKey56.]

Great Video 😊 This is my nxt Project. My only concern is how will both batteries Internal and External Discharge at the same rate ? The Internal Pack Could be 8.4Ah with High Quality Sony/LG/Samsung and the External Pack could be 8.4Ah But with Cheaper cells thus the voltage on the External pack will Drain faster this is my only issue. I could be Wrong Tho

[@voodoochile7581]

Ain’t there a kit with all in so it’s easier?

[@danihani2526]

Hej i like your Chanel alot what bms should i buy for a battery like this . Please send a link IF you already have a favorite one?

[@markyazurin6304]

After install does this mean you can charge the battery on either the external and stock port? I noticed the external battery has a charger connector as well.. Thank you! Looking to buy the connector right now..

[@jeremysuarez2121]

I've been waiting for someone to make a ready made connecter since i bought scooter. I am very excited to hook it up! Can you let me know what battery I should purchase for the non pro version?

[@jeremysuarez2121]

www.aliexpress.com/item/33056434325.html?spm=2114.12010612.8148356.5.453458e0sl3rsy Will this one work? Its seems to already have the connector.

[@jeremysuarez2121]

I've also bought your pre made connector :)

[@tatech8696]

@@jeremysuarez2121 Yes, this Battery will be good, I already had "LiitoKala" batteries and they are ok

[@tatech8696]

@@jeremysuarez2121 Thank you very much, connectors will be sent tomorrow with first class

[@tatech8696]

I'm glad I can help. As this is my first youtube channel, please like my videos, subscribe and share the channel with others. Thanks

[@KikoBach94]

You are so good man !!!!!!!!!!!!!!!!!!

[@tatech8696]

Thanks for nice comment. Please Subscribe, Like and Share my channel.

[@Exquisitemediaofficial]

Man love your video very straight forward, just have one question when charging the batteries do you have to charge them separately?

[@tatech8696]

Thanks Maco. I charge both batteries via the original scooter port. Some people charge both batteries via additional battery charge lead but I haven't checked it yet so I don't know how it will work. The third option is to charge both batteries with two separate chargers but the batteries must then be disconnected and the chargers must be the same (2nd genuine xiaomi charger) and they must be charged to the same voltage. After charging, When they are still disconnected, check both batteries with voltmeter to see if they have the same voltage. One more option is to buy a more powerful charger. The original charger charges with 1.7A, I bought and are still waiting for the 3A charger.

[@Exquisitemediaofficial]

T&A Tech thanks for the quick response Greatly appreciate it I think I will go with the option of charging via the original port, it seem like best best option to me as it will charge both batteries. I take it will take roughly 10 hours to charge both batteries with original charger?

[@tatech8696]

Yes, around 10hrs

[@tatech8696]

link to faster 3A charger for m365 you will find in the description. it costs £ 14 and will reduce the charging speed to around 5-6 hours

[@Exquisitemediaofficial]

T&A Tech oh wow that’s better thanks for your help and advice man I will order one tomorrow

[@andresittorpix8744]

Perdoname bro pero todo estaba bien hasta que le abriste agujeros al patín. Si lo vas a hacer por lo menos pon alguna junta tórica en los tornillos. A la minima que llueva tienes todo el patin de agua xD

[@brottochstraff]

Best guide i have seen. Any idea what battery packs are safe to buy from Aliexpress? seems like theres so many of them. Also, how much range did you gain?

[@tatech8696]

Thanks. LiitoKala batteries are safe to buy, I had no problem with it but I waited a long time for the parcel (6-7 weeks). You need Battery pack with "BMS" and any 36V from 8AH up will be good. I had an 10AH battery pack and it doubled my range.

[@brottochstraff]

@@tatech8696 Wow, thas amazing. My weight is 93kg and im getting around 20-30km on regular battery with no hacked firmware. If i could get at leat 50km range that would be amazing. I could skipp charging at work at all

[@tatech8696]

@@brottochstraff Good range, I guess you have "M365 Pro" which has the originally a battery with a capacity of 12.8 Ah, so to double the range you need to connect a minimum of 12Ah. I have M365 (not Pro) which has batteries with a capacity of 7.8ah and an additional 10Ah doubled my range

[@brottochstraff]

@@tatech8696 Yes, its the Pro model. I hope the same method will work anyway as you have shown :)

[@tatech8696]

@@brottochstraff Yes, same method

[@Guildleader117]

External battery does not charge at the same rate as internal possibly due to BMS. Do you charge each battery seperate? I charged my scooter for a little bit and unplugged the external battery to test voltage and found my internal battery was much higher. Thank you for the video.

[@tatech8696]

I charge my batteries through the internal battery and everything is fine. 12:13 Have you created and installed custom firmware with " Remove Charging Mode" enabled? if not, you will find the link to the website in the description.

[@Guildleader117]

​@@tatech8696 I did that too. Must be the BMS in the battery i bought not allowing current through the output connectors and only allowing charging through the barrel connector. Interesting. Just thought id ask. Thank you for the reply.

[@Skynet7898]

This is very good video on how but is there somewhere some place that I can pay for some one to do this

[@fighter67]

cool

[@patrick1992]

This also works at the Xiaomi S1 for the German market? (We sadly cannot use the M365 because of some laws and insurance)

[@bboytyby]

germany most stupid country in europe

[@MrHassanRazi]

Would a 25Ah batter be overkill for a M365 Pro or not? Love ur videos btw keep up the good work

[@tatech8696]

Hi Hassan. Thanks for nice comment. I have no idea if this could damage the scooter. However, the 25Ah battery pack will be very large and heavy so it will be a problem to mount it on a scooter :/

[@chewsan7733]

T&A Tech the original battery of Xiaomi Pro 365 12.830Ahm 36V can put together that you have 9Ahm 36V ?

[@tatech8696]

@@chewsan7733 there is no problem with capacity, they can be different, the voltage must be the same

[@chewsan7733]

T&A Tech but it decreases the Range because original Xiaomi Pro battery is 12.830Ahm?

[@tatech8696]

@@chewsan7733 If you add 9ah to yours pro scooter you will get 12.8+9= 21.8Ah so will increase range

[@bakarekelvin5029]

Nice one please I need something like this

[@mrennie25]

Do you have a link for the heat gun you used to heat shrink? It looks very nice.

[@tatech8696]

Thanks Morgan. If you type "SMD rework station" in the tab search then they should show up. I bought my heat gun many years ago and I don't remember if it was on ebay or amazon.

[@happygiraffe9787]

After doing the exact same connections the battery, it should act just like a double capacity factory battery? Of course I would make a custom firmware with the charging fixed.

[@tatech8696]

The original battery has 7.8ah if you connect a second 7.8 ah or more then you will have 15.6 or more (depending on what capacity the additional battery) the application will still show the capacity of the original battery because it will take data from the original BMS battery but the percentage of capacity while driving will decrease more slowly. There is also a second method of connecting directly to the original battery (plus to plus, minus to minus) but then you need to cut the plastic cover and you need to be more careful because you can damage the original battery

[@happygiraffe9787]

@@tatech8696 Yeah I would do it like you did. Thanks for the response!

[@tatech8696]

No problem. Please Subscribe my Channel and share with others. Thanks

[@SuperGalaxymedia]

If scoter battery is 36v 7.5ah And external battery is 36v 10ah Will it work? Please replay me Thanks in advance 🥰

[@antonypartali]

Question..? If the batteries we connect is both 60v. The 1 (in scoot) is 20a with 3000 capacity cells and 30a discharge And the 2 (external) battery is 21a with 2600 capacity cells and 20a discharge Conect them in parallel, they will work or i will have problems? Your batteries have them in parallel All the time? Is exactly the same batteries and capacity? If they are not (as mine) do you have any issues? Thanks!!🙏

[@gitbox1267]

Perfect 🥰

[@danielscastillo3606]

Hi! I did this, but when connecting everything and still installing the new firmware, one battery charges the other and does not take it, what is happening?

[@rahi7339]

Can't you use both battery separately like if one battery runs out then use the other one instead if parallel? I'm saying this cuz it's hard to make sure both battery on dame voltage

[@sparklauerei1]

Cool video. How does it work with the percentage on the dashboard? Does it work? And are the percentages in m365 tools correct?

[@tatech8696]

Thanks mate. Percentages on the dashboard and in the "m365 tools" app go down slower/correctly but the capacity of the additional battery is not shown in the app.

[@sparklauerei1]

@@tatech8696 ok thanks

[@nikostevens1]

@@tatech8696 Hi T&A, I have a question about the fuse. I have a Xiaomi Pro. Since the scooter's charger has an output of 42V, what type of fuse should I use. The ones I see on Aliexpress are either 12V or 32V. Thanks in advance!

[@tatech8696]

​@@nikostevens1 Hi. You mean fuse for 2nd battery? Fuse 32V 25A. You can save time and stress and buy ready made connecting kit for 2nd battery. Link in description

[@nikostevens1]

@@tatech8696 Thank you! I ordered everything I need on Aliexpress. A well reviewed, 12.8Ah decent batterypack, heat shrinking tube, 16AWG cable, XT30 connectors and also a 32V fuse. The thing I was "worried" about was the fuse blowing up as soon as batteries get charged because of the fact that the charger is 42V and the the fuse 32V but I realised it's not the voltage but the current wich matters.

[@PewShaiDun]

I saw this all over the internet. Let me say if i buy the full kit completly from you! The Xiaomi E scooter Pro 2 Has a 45Km Range And with the extra battery on it how much Km will it reach? I need to know it since im interested to buy one

[@tatech8696]

Hi. Thanks for your comment. Unfortunately, I do not sell full kits (cable, battery, battery bag) I only made and sell a cable kit for connecting an additional battery in parallel. The Xiaomi Pro2 has a 12.4Ah capacity of the battery pack, so if you connect an additional battery pack of the same capacity, the range will almost double. If you connect half the capacity, the range will increase by about 50% from the original. Overall, the range depends on many factors such as Driver's weight, weather, road surface, slopes, and many more.

[@caidzz9248]

Is this for a Series or Paralell battery upgrade for the scooter?

[@zacgan1845]

hello! please make a video about adding a 12V battery in series for 48V total (extra speed :D)

[@monkey7255]

Any chance of an updated link for the Samsung cells? Can only find the cheaper ones online.

[@justinlong977]

Seems easy enough

[@daredare8101]

good job

[@PaganiTypeR]

wait. I saw your external battery has a BMS charging port. Do you have to connect additional charger to charge external battery on top of connecting original charger? Or can this be done just by connecting original charger into scooter charging port and both batteries will charge?

[@Mietas2]

Couldn't you just add a 2 point switch and connect extra battery through that? When original battery runs down you flick the switch and start using external one. It doesn't give more power, but should be easier and you could safely remove extra battery.

[@tatech8696]

Hi. Thanks for comment. Yes, you can also do it, depending on what you are looking for.

[@Mietas2]

@@tatech8696 It was just a thought. Though if someone wants to mod the firmware and use full power of the engine, your mod is the way to go to get higher constant power from battery pack.

[@victordunderklumpen6123]

Hey man! Awesome video i bought the battery cable set from you, but I have a problem... my scooter has not increased in range, I added a volt meter and I can only se the external battery being utilized very few times, do you have any suggestions on what that could be because of? Also do you have any smart app that can se the power of both batteries connected? Thanks for the help @T&A Tech

[@tatech8696]

Hi. Thanks for your comment. You have to check everything again. 1- custom firmware, 2- extra battery, 3- split cable. 1.Be sure you have installed the custom firmware with the "remove charging mode" option selected. 2.Disconnect extra battery from the split cable. Check the voltage on the extra battery, the voltage should always be the same as that of the internal battery (after full charging and also after driving a few kilometres) 4. Disconnect the split cable from the mainboard and internal battery and check it to see if it transmits voltage. You can do this by connecting the internal battery only and check the voltage at the output of the cable (the connector you plug into the mainboard). Disconnect the internal battery from the cable then connect the external battery and check also. Unfortunately, I don't know of any application that shows extra battery capacity.

[@victordunderklumpen6123]

Cool thanks alot I checked everything and re soldered the connector between battery and split cable on the external part and it seems to have done the trick! Thanks! Hope you post some more cool m365 videos soon! Subscribed and waiting for more! 👍😎

[@martintrevino6688]

I purchased your wire as well. Does this also work with aovo pro?

[@myma84]

Does additional battery cause aby problems with original firmware ? Does charging work properly with original charger ?

[@teamscooter]

Hej va det dyrt att söta på exstra batteri vill göra lika dant med min vart håller ni till

[@nixed3209]

Can i upgrade the battery from my Xiaomi essential?

[@knoxieman]

Really really bad idea to drill holes in the down tube, you massively weaken the strength at this point, might be ok for lighter riders but not for larger people, also there is absolutely no need to do this, straps clamps or cable ties would be more than sufficient, thumbs down from me sorry.

[@tatech8696]

I appreciate your feedback, but I personally don't think that two small holes affect the tube's durability. In this scooter, there are many more points that have much less strength.

[@knoxieman]

@@tatech8696 I could show you structural analysis using stress analysis tools I use in my day job designing cranes if you like, just look at the guidelines on house building with regard to drilling holes in roof beams and rafters if you want to really see the effect this has, you really must not perform this modification,.there is no need to drill the downtube at all, I really would re edit this video to not show this step.

[@danielwhitehead8255]

In the process of doing this myself and I've used 2 exhaust u clamps with extended legs. 45mm diameter with a cut up inner tube to line the frame where it touches. It's rock solid and no need to drill ;)

[@gkeks1913]

Can I add 2s8p external battery? Or is it need to have same voltage as the main battery?

[@eduardoparedes6529]

Cuando te das cuenta que la pasta que gastas en esa lata de xiomi no te da para mucho. Y le sigues metiendo más pasta.

[@flownmoon5444]

What bag for battery did you use? Did you order it on aliexpress? If so can you leave the link?

[@tatech8696]

The size of the bag depends on the dimensions of the battery. For the battery from the first link, this bag should be good (colour- WL03) : www.aliexpress.com/item/4000981116507.html?spm=a2g0o.productlist.0.0.74a81d54FZDbQV&algo_pvid=6717369b-d03d-4126-81e2-22994dd60625&algo_expid=6717369b-d03d-4126-81e2-22994dd60625-57&btsid=0ab6fab215904733856511393e01c4&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

[@khunpoum]

1:54 which size of heat shrink tube should i use for XT30/XT60 ?

[@burgerham5594]

Hi bro i will use 36v 4400 mAh battery with out bms. Does it work?? And I wonder how to extra battery charging

[@tomjerrytvvlog7512]

good job amazzing

[@tatech8696]

Thanks mate

[@casperlundracing5868]

Hello. My friend has this 12s battery pack on the normal M365 pro. I have the pro 2 but i run 42 kph, and then the scooter is braking. Hes is running 55+ because theres no braking on it. Do you know how to fix this on the pro 2?

[@bluemaz6]

The battery pack that you got/list on Ebay comes with a separate charger port?

[@tatech8696]

Hi. Yes the battery has separate charger port but you can also charge via the load port

[@bluemaz6]

@@tatech8696 Ah, cool..

[@alfiealcaraz909]

Hello how many percent the battery before we charge? Thanks..

[@cirwo85]

Hey Thank you for this tutorial video. I just got done doing this but one important question; when I first connect the extra battery I make sure they’re both at same voltage but after I go a little ways, I check the voltage again and they are no longer the same. Seem to get more unequal the further I go. Is that normal. Went about 4 miles and off by 3 volts after.. & I did remove charging mode FYI

[@tatech8696]

Hey Adam. Check everything again if it is properly connected . What was the difference in voltage between the stock battery and the extra battery and which battery had a lower voltage after driving 4 miles? Also upload the software again with the "remove charging mode" option marked (I always upload firmware twice because sometimes it doesn't change)

[@cirwo85]

T&A Tech thank you for your reply. Some additional info; the extra battery I’m using doesn’t allow for charging through the discharge wires.. could that be why? The regenerative charging of the scooter only regenerative charges the original while the extra battery cant receive any charge that way.. I’m just guessing about maybe that could be the problem tho I hope not cuz nothing I could do if so. Andto answer your questions I am certain everything is properly connected and that the firmware worked because I also changed the cruise control from 5 seconds to 3 and that noticeably worked. The extra battery is the battery that loses volts quickest. After about 6 miles, the extra battery will be at 38.0 volts while the original battery will be at 38.5 volts. How serious a problem is this? The seller (Laudation) who I bought the extra battery from doesnt allow returns.. tho nowhere in the description of the battery does it mention that the battery cannot be charged thru its discharge wires. Really disappointing $105 wasted

[@cirwo85]

T&A Tech just realizing in my first comment I said it was off by 3 volts after a 4 mile ride, I meant to say .3 .. not 3 whole volts but .3

[@tatech8696]

Some batteries cannot be charged via the discharge cable because they will not be protected by "BMS" but the charger also has overcharge protection so this is not a problem. There are two more charging methods. 1: Charging both batteries via the second battery port (it is good that the charger gives a maximum of 41.5 - 41.6V because some cheap chargers have charging set to 42.0 and even 42.2V and this voltage can damages the cells) 2: Charge both batteries with two separate chargers but the batteries must then be disconnected and the chargers must be the same (2nd genuine Xiaomi charger) and they must be charged to the same voltage. After charging, When they are still disconnected, check both batteries with the voltmeter to see if they have the same voltage. Up to 0.5V the difference between the two batteries is still fine.

[@cirwo85]

T&A Tech ok thanks! Only issue/question I now have is .. I charge them both separately but the extra battery cannot be charged with an xiaomi charger because different fitting. Xiaomi Charger won’t fit/won’t plug in to battery charging cable. But as long as they are both charged to same voltage then it should be fine correct? I appreciate you! Nobody else has responded w any attempt to help so very much appreciate the insight

[@Akogram2022]

Thanks a lot for your video. I recently bought a Xiaomi m365 pro and need one af this extra batteries . i have no that Knowledge and struments to assemble it. could you make me a complet set and send it to me in Italy? i would pay you as you make it. thanks

[@tatech8696]

Hi. You can buy ready made "cable/connectors kit" on my ebay. Please check pinned post or description. Thanks

[@giuseppemonaco8725]

Salve sono interessato le chiedo: il mio monopattino e della vivobike ed ha il Bluetooth cosa mi consiglia? Vorrei più autonomia e magari un po' più di velocità. Tutto questo cosa mi costa se è fattibile? Grazie mille

[@sunajismail5402]

How do you charge the extra battery?

[@Mike_Oxmall]

Where do i buy external battery kit? Link please

[@lesstalk4556]

Hey man. Do we still need bms/battery management system for the second battery pack? Thanks

[@tatech8696]

Hey. It will work without bms but I highly recommend the battery pack with bms for safety and health reason .

[@lesstalk4556]

@@tatech8696 Awesome. Thanks man. Cheers. 🥂

[@powerrespect3586]

Cool 😁👍

[@rapdlawszystkich]

Hi guys what about Mi Scooter Pro 2 Its same like on 365m ?

[@azzabbooii112233]

Can anybody help ? What would happen if the voltages are different? I've got 40.1 and 40.2 my meter doesnt show more detailed reading and wondering if this is ok ?

[@tatech8696]

0.1V different is ok beetwen Battery packs

[@magfam4556]

Hey sir.can u help me choose a compatible extra battery for my "two dots onekick three" electric scooter.cause my battery only had 36V 4Ah and its not enough to go to work...tnx

[@tatech8696]

Hi MAG FAM. I don't know this scooter so unfortunately I can't help you. Scooters from various companies have different electronics and batteries. Try searching for a video or some information about your scooter model.

[@magfam4556]

@@tatech8696 ah.ok.anyway thank u.:)

[@Chubbytom21]

Do you need a custom firmware for this battery mod? Or can you just make the connectors?

[@achieeeee123]

Can you do this with a xiaomi mi essential scooter?

[@peuavall]

what is the new power and Kms range? great work

[@tatech8696]

Thanks for comment. Motor power will depend on firmware you upload (extra battery give you extra current so the original battery will not be heavily loaded). The range depends on the capacity of the additional battery pack. Xiaomi M365 originally has a 7.8 ah battery pack and by adding about 9ah you will increase the range twice.

[@TakiTarik]

So how much more do u get ? With this Extra battery ? For example the pro has a mileage of 45 km at probably Eco Mode

[@tatech8696]

Hi. Depends on the capacity of the second battery. M365 PRO has batteries with a capacity of 12.8 Ah so adding a second battery with the same capacity (12.8Ah) will increase the range almost double. by adding 9Ah you'll get about 70% more range. Also the range of the scooter depends on many factors such as the weight of the user, the surface on which we drive, how we drive, wind etc...

[@TakiTarik]

@@tatech8696 ofcourse that makes sense, and i get that,which is normal allot of factors play a part, Okey then so if i get 40 km with 1 battery then 80 with 2

[@tatech8696]

@@TakiTarik Theoretically yes

[@tittentei7331]

Very nice video btw👍

[@tatech8696]

Glad you liked it!

[@leonardstone1071]

im having the trouble finding the bag for the battery since it seems everyones out

[@mikemakita1]

Hi i was wondering how you can make firmware for the essensial or lite model😁 thanks!

[@gindzers]

Cześć T&A Tech, czy zbudujesz mi baterię do X 365 Pro? Mieszkam koło Warszawy. Chyba że polecisz kupić gotowca, ceny zabójcze w necie

[@szurkeeminencias9574]

If i have an older battery it will be have a bug fidderent in voltage? And if thid is, true this is problem?

[@tatech8696]

Hi. Both batteries must have the same voltage when connected together. After a few miles, disconnect them and check again if they still have the same voltage.

[@szurkeeminencias9574]

@@tatech8696 im thinking to buy rita adapter for this problem🤔

[@tatech8696]

I don't know much about rita adapter but it looks like a good idea

[@billydavies7241]

Cool, where can I purchase that bag?

[@tatech8696]

The size of the bag depends on the dimensions of the battery pack. Some good bag you can found here (WL-03 looks good size): www.aliexpress.com/item/4000981116507.html?spm=a2g0o.productlist.0.0.74a81d54FZDbQV&algo_pvid=6717369b-d03d-4126-81e2-22994dd60625&algo_expid=6717369b-d03d-4126-81e2-22994dd60625-57&btsid=0ab6fab215904733856511393e01c4&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

[@rrvillareal2011]

Can you connect 2 extra batteries in parallel?