Lenovo Legion Go Double Battery Capacity

[@lazal3m]

You need to spot weld the four battery tabs to the existing battery and ditch the 2nd BMS Board. That way, the original BMS will re-calibrate the Full Charge Capacity to double the amount after a full discharge-charge cycle.

[@elnurmehdiyev5062]

@@lazal3m that what has been done already, most likely bios needs to be tuned.

[@Chaselockhart2]

@@elnurmehdiyev5062 What about the battery driver from device manager? was that deleted? Needed to do that with my ROG ally battery upgrade to see the full 90whr

[@trinity1516]

@@elnurmehdiyev5062did you figure it out yet? Im so invested in this mod ❤ the only thing that lego loses againt ally x is battery for me

[@ksrnate]

It won't recalibrate. The design capacity won't change no matter how much bigger you make the capacity

[@elnurmehdiyev5062]

@@ksrnate I got it ))

[@CrumpetsNBiscuits]

Wow dude. Good job. Love how you casually insert how you upgraded the memory like it's a given. If I owned one of these and you were offering the service - I'd gladly pay to have it upgraded.

[@elnurmehdiyev5062]

Thanks, that part has been taken from other youtube channel, sorry, my bit is upgraded battery.

[@SlickBuysModsandRepairs]

I can upgrade the RAM for you

[@CrumpetsNBiscuits]

@@SlickBuysModsandRepairs Thanks. I don't actually own one, but if I did, i would have considered. Thank you for doing such precious work.

[@MiggateNoGodku]

@@SlickBuysModsandRepairs can u do it for the asus rog ally too

[@elvisgonzalez8978]

@@MiggateNoGodkuyes he can for the og one

[@Denver_tld]

man I've been waiting for someone to do this since purchase, i hope to figure out the bms thing then I'm 100% sure I'll use that mod too

[@luisfernando55]

This is great ! I don't know why Lenovo can't offer something like this from the beginning !!!

[@elnurmehdiyev5062]

There are number of reasons: marketing, cost of the product, future-proofing, competition, readiness, development stage of the product. Next generation gona have better processor, different screen, etc..If competitors have 1.5hr work under the load, why should you release device twice as much? They have already released product with tons of features compare to competitor products, removable joypads, way larger screen....

[@matthewwain9958]

If manufacturers were forward thinking enough, options like this would be available from the manacturer. Imagine them selling double sized batteries as an option and being able to sell a bigger cover etc. Docks that added additional cooling capacity so the machine could run faster whilst docked etc. They really don't think about this stuff as a way to make more money. p.s. Great job :)

[@elnurmehdiyev5062]

@@matthewwain9958 they are focused on competition, that going to be next gen handhelds I'm pretty sure, just like ROG did.. ))

That's because they honor a warranty where the machine has NOT been opened. You open it, no warranty. Make sense? They don't want just anybody doing upgrades to their product and then have you expect to have a warranty, so of course they aren't going to sell that stuff. It's common sense, which most people don't have anymore.

[@matthewwain9958]

You can open a product just fine and still have warranty. Stickers saying you can't are not legally binding. The manufacturer has to prove anything you did caused a failure, in order to get out of honoring a warranty. P.s. PC's are highly configurable and modular. Your comment really doesn't hold water.

[@Zenithity]

Awesome work Elnur! Will be following along for the Journey and hopefully it will be a viable mod once complete!

[@tomoprime217]

For me I think a cool legion go project would be to forego the joycons and dock the screen via pogo pins into a clamshell case with extra battery, more ports and built in controller much like a GPD Win Mini / Max form factor.

[@llcj07]

Have you made any further progress with this? Were you able to modify the BIOS to show the change in hardware?

[@elnurmehdiyev5062]

That's not that critical for me, capacity data is written in BMS of the battery, not the device BIOS.

[@llcj07]

I thoroughly enjoyed watching your progress. Are you attempting to modify the bios now to accommodate your changes? Would love to keep up with your project.

[@MultiNK10]

Let us know the progress of this mod. I shared your video on the LegionGo community on Reddit

[@Shroombear42]

And I am watching this because of your post :)

[@elnurmehdiyev5062]

Thanks, I have updated back cover model adding original clips for rigidity. 1.4b, posted on thingiverse.

[@Tempestspy]

You can just buy extra 10000mah LiPo cells or replace the current one. All you need to do is add extra cells until you can't get any more to fit inside the device. I've done something similar to my phone. from 5000mah it's now running 2000mah, just use the same BMS. Hope this helps

[@elnurmehdiyev5062]

Cells used in GO rated to 3.88V, if you can find such specific batteries with larger capacity, please share, would be useful to others too. Cells with other voltages and chemistry would likely destroy your charging circuit or lead to early degradation of different voltage cells.

[@cory2016]

It seems cool, but a lot of work, a headache, and tech know how i use Power Bank for a laptop, okay with my battery. Also, it gets rid of kickstand thats a no-go. The ram thing is more useful, in my opinion. I like it stock so far. I may do a skin

[@ksrnate]

You need to find a Lenovo laptop battery with roughly 100wh then use the bms from that to work with your battery. That will work! I've been doing this for a while 👍🏻

[@BadEnd98]

Some local sellers in my country are doing battery modding for Rog Ally Z1E, give it a 72wh laptop battery and it's pretty great compare to upgrading to Rog Ally X which is double Rog Ally Z1E price

[@повезло-неповезло]

but it also have 24gb ddr

[@cesarschira556]

I will like to get the ram and the battery upgraded on my Legion go. But i dont feel comfortable doing the ram upgrade and mess something up. the battery seems to be less risky because you only working with the new one and not the original. I dont have a 3D printer either. I wanted to ask if you offer both services ?

[@ccflan]

awesome job for testing, but mixing double batteries that don't have the same battery circle is dangerous because the BMS should measure the voltage per each cell per charge and know when to stop charging for each cell, ask chatgpt for more details , anyway I watched the whole video and it's a great content 😊

[@elnurmehdiyev5062]

@@ccflan chatGPT lies alot latest times ))) thanks!

[@ccflan]

@@elnurmehdiyev5062 your right yes we need always a protocol to verify what comes from llms but still, he can give pretty detailed info why this one is not perfect

[@StuffIThink]

I really want to try this! Is it something a beginner could do? Nothing seemed too complicated in the vid from what i saw. Idk if it would be a hassle for you but a more detailed tutorial would be awesome!

[@elnurmehdiyev5062]

@@StuffIThink well, its quite a challenge for beginner...

[@StuffIThink]

@@elnurmehdiyev5062 I'm really just not sure about the soldering. I know my way around a PC and I've used 3d printers before. You think it would be a bad idea even if i could practice the soldering before i actually tried it?

[@elnurmehdiyev5062]

​@@StuffIThink If you know what you're doing, anything is possible. In the worst case, you might need to get another battery. Here's how I would approach it: I recommend ordering two batteries. Start by disassembling one and carefully removing the black sticky tape. Check how the BMS board is attached to the cells and gently detach it to ensure you have enough contact points for spot welding extension tabbing wires. Be cautious not to short anything. Next, carefully cut the cover off the other battery to access the spot-welded contacts. Once you’ve spot-welded the extensions to the disassembled battery cells, solder them to the contacts of the second battery. Secure both the spot-welded and soldered contacts using Kapton tape, and attach the two batteries together with double-sided sticky tape. After removing the original battery from the handheld, place the upgraded battery inside and test it. If everything works and the handheld functions with the increased capacity, reapply the sticky tape to secure the battery and print a new back cover for the device. I'll soon update the back cover model with version 2, which will include plastic clips similar to the original design, as well as an improved layout. Be sure to double-check battery polarities and measure voltages before applying the mod. If there are differences in voltage, fully charge both batteries and then discharge them to about 3.88V before proceeding. For this upgrade, you'll need: Two identical batteries A spot welder A soldering station Kapton tape (5mm wide is fine) Hand tools and a multimeter Double-sided sticky tape (preferably flexible, similar to the original) Tabbing wire (3-5mm wide) A 3D printer (or service) to print the back cover You can find guides on disassembling the handheld and removing the battery on KZbin.

[@SoloKaay]

have you traveled with this? lol what are the chance of it blowing up?

[@elnurmehdiyev5062]

@@SoloKaay yes, I did, many times, no probs!

[@canosta9174]

Bro u think u could 3d Print a custom flat backplate for me for the Ally X?

[@elnurmehdiyev5062]

I dont have Ally X ((

[@Denver_tld]

idea have you tried bazzite or cachyos ? i think the battery indication adjusts itself differently in that os it take a bit of time like a full battery discharge to calibrate. I'm running cachyos it's super easy to install dual boot and runs like a steam deck you can go to sleep mid game no issues.

[@trinity1516]

Running bazzite on mine

[@ezg8448]

3.88 nominal voltage cells? Very bizzare choice, especially when space was not at a premium and the device was already a heavy, chunky boi. This increases costs, but gives it a higher capacity. I believe they are HP (high performance) cells that are more commonly used in cell phones. They have a max voltage of 4.48 (around there), instead of the typical 4.2 volts.

[@Kezcodmobile]

Can you not put a laptop battery in the legion go

[@junjiejiang3933]

omg nice work,i will try it for my legion go

[@EKLEKTIK06]

Good work 😮

[@adamarzo559]

Hey buddy just curious, can you tell us which IC on this device specifically requires 3.88V to a point you need to get a battery that is putting out exactly 3.88V? Also there's a reason Lenovo left room inside and didn't cram it full of battery space, but hey, what would I know?

[@elnurmehdiyev5062]

The specific IC you're referring to is part of Lenovo’s design approach, where they reuse components from their laptops to accelerate the product's development and release. This includes the power management circuitry, which is optimized for the same 3.88V cells commonly used across Lenovo devices. In my modification, I parallelled identical cells, effectively doubling the battery capacity while occupying the intermediate frame space, which was originally reserved for cable management. This adjustment had no impact on thermals, as there’s sufficient space for airflow, and the design safely accommodates the increased battery thickness. Lenovo likely left extra space for flexibility in design rather than for thermal concerns.

[@wric01]

How about removable batteries which none in the world has yet all demands it.

[@elnurmehdiyev5062]

@@wric01 great idea, go ahead!

[@ampere-mam]

Not entirely sure why they went minimalist on the RAM and battery anyways 😒

[@GeorgeMihaiRadulescu]

Nice one 💪🏼 What 3D printer are you useing? Greetings from Germany 😊

[@elnurmehdiyev5062]

@@GeorgeMihaiRadulescu creality ender3 s1 pro, thanks bro!

[@DarkBloodyFoxy]

Airline disapproved :D

[@shazzi1626]

zur video i was considering doing with with lenovo legion go but i sold mine and got a rog ally x. i saw u can put the rog ally x battery in origional rog ally that would be easier than this, however i do like the design of this console.

[@돌하르방-x4k]

Wow amazing

[@junjiejiang3933]

Hello bro, can you tell me the size of the Original battery? I'm going to customize the battery, but I need the Previous Dimensions

[@elnurmehdiyev5062]

Cell sizes differ from package sizes (w BMS). Take 65x140x10 mm for double cell sizes as reference. Add BMS 65x20x10 mm

[@junjiejiang3933]

@@elnurmehdiyev5062 And I want to know what the maximum internal space can be without the height of the plastic plate, because I want to customize the battery as big as possible without retrofitting rear lid。

[@junjiejiang3933]

@@elnurmehdiyev5062 thanks a lot bro🙏

[@elnurmehdiyev5062]

@@junjiejiang3933 you better open it and check yourself in that case

[@steamswicht]

It could also be tested with a Lenovo battery of Capacity: 60Wh/7820mAh Compatible laptop models: Lenovo Yoga 7 Pro Series Lenovo Yoga 7 Pro-13IKB Series Lenovo Yoga C930-13IKB C930-131KB Glass Series Lenovo Yoga C930-13IKB-81EQ Series Lenovo Yoga C930-13IKB-81EQ000HGE Lenovo Yoga C930-13IKB-81C4 Series So the weight will not increase too much and we will have more playing time, it would be 1472wh more and maybe it would be without modifying the housing.

[@steamswicht]

I would take it perfectly inside since the measurements are 29.5cm and if we disassemble them and put them one on top of the other they are 14.55 and we disassemble the thickness remains at 1cm. So it would take perfectly inside the original housing, having the same connector and would close the housing.

[@TheDixlexxik]

next update Lenovo legion Go burn down from controller not working properly

[@Anansi2077]

Is it possible to make it smaller for full sized ssd

[@elnurmehdiyev5062]

@@Anansi2077 thing is, "full sized" NVME drive consumes as twice as much of energy, there for, it's better to purchase and install, same formfactor drive with 2TB capacity, those are available on aliexpress (pay attention to the read/write speeds). That's gona be more than enough for this handheld.

[@Anansi2077]

@@elnurmehdiyev5062 my goal for my legion was to be as powerful as your average gaming pc but on the go, which is why I added a 4tb ssd and 32gbs of RAM. Since I know ill be traveling and i like playing with friends the go was the perfect for what i wanted, the only thing i have to worry about is Battery.

[@5555dhoni]

Legion go 2 should be 80Whr battery at minimum

[@atmphil1]

very nice now do the ROG ally

[@lennieleng9679]

Pretty cool.

[@sturm5061]

👍👍👍

[@MrBirdshell666]

looks too extreme imo. if you really want no extend capacity - an external powerbank is the way to go

[@elnurmehdiyev5062]

external battery will triple capacity for me now ))

yeah, they make an adapter that holds an external battery to the back case on the legion go.

[@Gazpolling]

1:32 avalaible and istanbul just rhyme so satisfyingly Maybe you should make rhyming video 😂

[@railanrailan6634]

Just use power bank. Problem solved

[@llcj07]

I don't think you quite understand that the purpose of this is to eliminate the need for that.

[@railanrailan6634]

@@llcj07 how many mah did he add? Its more practical to use powerbank. Powerbanks has more battery capacity. If this is to replace powerbank then your idea is stupd

[@dgm778]

😂😂😂😂😂

[@angeloagonzales]

Khaby Lame would definitely hook up a powerbank and make a funny face

[@tomoprime217]

Yeah but with power bank you eliminated the need to update custom firmwares, screw up 3d prints, solder battery tabs with messed up bms and god knows what's next 😂.