An Electric Scooter Community on a Mission to Stamp out Transportation Mediocrity.

Covers electric scooter models whether shared or for consumers.
User avatar
By Jnsystems
#57650
I would be interested in more info on the Angle Grinder procedure, but apparently cannot use DM on this forum, would u elaborate on this here ? Or maybe help me reach out through another messaging facility ?
Thanks
Btw try prying out the thing first, before resorting to this. Also there
Is another post in the forum with the images you also need.
Last edited by Jnsystems on Wed Sep 06, 2023 6:26 pm, edited 1 time in total.
By My Slime Get Around
#57896
Jevoko030 what is that plug behind wheel, where battery lock is welded? What are those switches you added
By My Slime Get Around
#57929
It's an emergency cable on the latch that opens it bud.
Someone on YouTube claims that putting 5-12 v DC to the wires to the battery lock opens it but that doesn't work on mine.
[/quote]

Yes, The Youtube Channel Starting with the word Sherlock Ohms, I watched his videos, but isn't very helpful there. When I send in 9 Volts through the connection, nothing happened. I tried every single combination that I can think of on a spare latch and it did not work. That is due to the thing using CAN BUS Protocol or similar, therefore correct data (key) needs to be sent to the latch (lock) in order for the microcontroller to process the data and unlock the latch. I got myself in through the bottom, there is a white nub, just grinding a medium sized square does the work, but if possible I should have slim jim it, but I will try that when I have a chance to see if that works. I might also try a soda can and see if that works too.
Edited Again: Slim Jim And Soda can didn't work on my end because the gap is too small and the latch is shielded.

So what I know, is:
[*] A 14S BMS should be used on the new batteries, but there is currently no wiring diagram or step by step for wiring the 14S to the chunkier batteries.
[*] Mine Current Project is a Lime Gen 4.1, So some functions may differ than Gen 4.0 but is relatively the same.
[*] To Remove AND Reuse their Proprietary Screws on the wheels, Purchase and Use an IRWIN 3/4" - 19mm Extractor Socket as it doesn't cost that much.
[*] Their Motor, Just like the Bird 3, is garbage, consider purchasing your own universal brushless motor from a reputable source. Just make sure the dimensions of the universal motor fits into the baseboard of the scooter.
[*] I am still figuring what is throttle, brakes, hall wires, motor wires, etc and it is taking a while on my end, so gotta get my multimeter out if needed.
[*] Since the scooter is missing some hall wires, external mods may be needed to the back wheel to prevent overloading the throttle and allowing the scooter to handle steep hills and/or two-three people. If you don't want external mods, I would recommend putting a resistor to the throttle connections (Blue) to not overload the scooter and make it shut off.
[*] Most of the learning on my ends comes from modifying the Bird 3, so check that out and apply the concept to this scooter.
(Edited: You can even have a setup where a switch can control flow to two separate resistors. One is normal speeds of 20-25 mph, or city speeds of max 12-15 mph.)
[*] Charging is different when their BMS is replaced with one from aliexpress, so figure that out and make sure it's wired right, where I have next to zero electrical knowledge to know, but I know how to strip, solder, and cut wires.
[*] Since the gen 4.0 and onwards, their batteries are swappable, so carry more to increase total scooter runtime.

If you have specific further inquires feel free to pm me. I hope this helps those that need it so those can return the favor and make e-scooters great again.
[/quote]
By My Slime Get Around
#57930
My Slime Get Around wrote:
Thu Jul 13, 2023 4:59 am
It's an emergency cable on the latch that opens it bud.
Someone on YouTube claims that putting 5-12 v DC to the wires to the battery lock opens it but that doesn't work on mine.
Hey bud, if you wanna email me direct at hotroddidit@yahoo.com I can share some information with pictures on a few things.
Yes, The Youtube Channel Starting with the word Sherlock Ohms, I watched his videos, but isn't very helpful there. When I send in 9 Volts through the connection, nothing happened. I tried every single combination that I can think of on a spare latch and it did not work. That is due to the thing using CAN BUS Protocol or similar, therefore correct data (key) needs to be sent to the latch (lock) in order for the microcontroller to process the data and unlock the latch. I got myself in through the bottom, there is a white nub, just grinding a medium sized square does the work, but if possible I should have slim jim it, but I will try that when I have a chance to see if that works. I might also try a soda can and see if that works too.
Edited Again: Slim Jim And Soda can didn't work on my end because the gap is too small and the latch is shielded.

So what I know, is:
[*] A 14S BMS should be used on the new batteries, but there is currently no wiring diagram or step by step for wiring the 14S to the chunkier batteries.
[*] Mine Current Project is a Lime Gen 4.1, So some functions may differ than Gen 4.0 but is relatively the same.
[*] To Remove AND Reuse their Proprietary Screws on the wheels, Purchase and Use an IRWIN 3/4" - 19mm Extractor Socket as it doesn't cost that much.
[*] Their Motor, Just like the Bird 3, is garbage, consider purchasing your own universal brushless motor from a reputable source. Just make sure the dimensions of the universal motor fits into the baseboard of the scooter.
[*] I am still figuring what is throttle, brakes, hall wires, motor wires, etc and it is taking a while on my end, so gotta get my multimeter out if needed.
[*] Since the scooter is missing some hall wires, external mods may be needed to the back wheel to prevent overloading the throttle and allowing the scooter to handle steep hills and/or two-three people. If you don't want external mods, I would recommend putting a resistor to the throttle connections (Blue) to not overload the scooter and make it shut off.
[*] Most of the learning on my ends comes from modifying the Bird 3, so check that out and apply the concept to this scooter.
(Edited: You can even have a setup where a switch can control flow to two separate resistors. One is normal speeds of 20-25 mph, or city speeds of max 12-15 mph.)
[*] Charging is different when their BMS is replaced with one from aliexpress, so figure that out and make sure it's wired right, where I have next to zero electrical knowledge to know, but I know how to strip, solder, and cut wires.
[*] Since the gen 4.0 and onwards, their batteries are swappable, so carry more to increase total scooter runtime.

If you have specific further inquires feel free to pm me. I hope this helps those that need it so those can return the favor and make e-scooters great again.
[/quote]
[/quote]
By My Slime Get Around
#57931
If anyone wants to email me directly at hotroddidit@yahoo.com I'll share some information with pictures. It's actually a 5 volt latch with emergency bypass
I would be interested in more info on the Angle Grinder procedure, but apparently cannot use DM on this forum, would u elaborate on this here ? Or maybe help me reach out through another messaging facility ?
Thanks[/quote]

First get scoot, (correctly of course) and
If u look up this user on Telegram u can find a match :) that ur contact.

Btw try prying out the thing first, before resorting to this. Also there
Is another post in the forum with the images you also need.
[/quote]
User avatar
By Jnsystems
#57939
^ I don't know where all the quote blocks are going or how you're saying the latch does anything.

As per previous information on this forum, The Latch is controlled by CAN BUS / Encryption mechanism so send ing just 5W to a certain cable won't work. However if there is an alternative way that is proven to work, that would be good to know. Well Grinder Method already works and is able to converts one to push and ride, for one that is not that good with electronics, just soldering iron and wires.
By DIGDUG101
#57945
if you just GOOGLE 'LIME 4.0 CENTRAL CONTROLLER' THE IDIOTS HAVE LEFT A PDF ON THE WEB that explains how to unlock the security box with a magnet(strong one) as well as awiring diagram for all harnesses that pass through it! as far as battery goes, i dont know what the big deal is. get a large flathead screwdriver push it straight in above handle and wrench it upwards HARD and it will make a really loud POP AND YOU WALK OFF with it... i have 4 that i cut the bms off of and i just built a 84V 25AH battery for my crazy bike...
By My Slime Get Around
#57969
[Jevanko can you please explain why they need hall wires added? It works by just wiring the throttle with the 3 thick wires with the controller i bought.
No 3 speed wire, nothing else but throttle and 3 wheel wires. quote=Jevako030 post_id=57426 time=1670376300 user_id=80197]
Jnsystems wrote:
Tue Dec 06, 2022 7:28 pm
Richie2502 wrote:Is there a clear path to a shim the battery latch open on these or is it shielded ?
I have not seen a clear path to get it to open, however I don't know how others managed to get it open without any damage, it looks like they attack it from the top, but sometimes people can just find the juice boxes wide open, literally just grab and go. That is my method and I already have so many to test and ride with. Now it's just me figuring out how to install the BMS properly and wire everything up.
Hi Hi,
everything you want to know has already been found out and is all described in the other Lime forum.
Remove battery, replace BMS, Hall sensors.
Everything is described in detail there. So if you read it first, you will know everything and you will have answers to all your questions. That guy with that Youtube channel just does something and says things that are not true at all.
[/quote]
By My Slime Get Around
#57970
Helgren, can you pleasehelp me get one running for the kid upstairsfromme. He needs a way to andfrom work.. hotroddidit at yahoo . Com is my email.
Helgren wrote:
Tue Dec 06, 2022 10:21 pm
Jnsystems wrote:
Sun Oct 30, 2022 1:05 am
Richie2502 wrote:Looks like it's beyond my capabilities, electronics are not my thing, metal working is, i dont have the time to do this project which would need hours of study and experiment. It would be esier for me to convert it to petrol engine drive than get into the electronics.

I might use the battery pack as a power bank if I can get it off, the scooter was free anyway so I've lost nothing.
I know you don't have the time to invest to get the 4.1 up, but If you wanted the battery, just shove something between the battery and the case and maybe it would pop the latch out. I never done that, because I just angle grind the bottom open and take out some screws holding the latch together and manually released it. If you wish I can show you through DMs.

Also retrieved two more abandoned battery packs (old) yesterday lol, I already had enough scooters, only wanted a gen 4.1. The scooters abandoned came with the old batteries pre-unlatched from the case. Thx those who managed to did it while I am so stumped...
Saw Ppl riding the black gen swappable 4.0 in the train station platform way out of the service area, thumbs up to them.
Also props to those that tried to innovate...
Image Image
Is it possible you help me out with these. I have plenty of knowledge with soldering and getting some of the older scooters to work but am frustrated with these. Any help would me much appreciated!! Thank you!,,
User avatar
By Jnsystems
#57971
My Slime Get Around wrote:
Mon Jul 17, 2023 8:21 am
Jevanko can you please explain why they need hall wires added? It works by just wiring the throttle with the 3 thick wires with the controller i bought.
No 3 speed wire, nothing else but throttle and 3 wheel wires.
* Some scoots are built different from the best of my knowledge, for example Bird3 Fleet, maybe spin snsc uses hall wires, but lime 4+ does not use them and uses a KT? Config.
My Slime Get Around wrote: Helgren can you please help me get one running for the kid upstairs from me. He needs a way to and from work. hotroddidit at yahoo . Com is my email.
I'm not the type of person that sends email around, preferred communication is through Telegram (send photos of current scoot)

Eventually I may release a guide on this, but on the other forum thread you already have the majority of the detailed information. When I do release a guide I might have to figure out if it needs to be request only or posted here for all.

Also for easier identification, this scoot identifier is specifically Lime 4 S (Mines is
Code: Select all
Lime
S 4.1 Seated)

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