Fiido Q1S 3000W Dual Hub 72V Flipsky FT85BD

[mrmojorising]

I came across a Fiido for cheap and had no ongoing projects, so I thought why not. I wanted a project to test out a battery using 46950 cells, and this setup was perfect.

Specs:
Fiido Q1S Frame
2x Stock Q1S geared hub motors, front & rear
20S1P EVE G16 4695E Battery (72V 32Ah, 120A max discharge). JNFN (ANT) BMS
Monorim dual crown air forks
Flipsky FT85BD dual motor controller
Brake lights, horn, and headlights using the Flipsky's dedicated 12V outputs
Custom 3D printed controller housing (Black ABS)

The two stock motors provide great torque at 72V, but max out at about 50kph due to gear limitation. They easily handle being fed 20amps each with 5amps of Flux weakening (which really only adds a few kph at most). All in all, a super fun little scooter at this power

A few notes on the battery as this is definitely not a common, nor recommended way of using these cells. They were spot-welded using Al-Ni composite strips on the postitive terminal (which is Aluminium). These strips help facilitate enough heat to produce a decently solid weld, which can then be welded on top of with a Cu-SS sandwich. This really pushed the limits of my Awithz P30C welder, but I was happy with the result. The Cu is 0.2mm x 20mm with 0.1mm SS on top.

 

[mrmojorising]

Spin test

Lights test

 

[E-HP]

I don’t really understand the attraction to these little bikes, but can certainly appreciate the effort and workmanship invested in transforming them.

Fiido Q1S Upgrade; 200A, VESC, Copper-Nickel 52v Molicel

Bought a Fiido Q1S from Voro Motors knowing full well the stock scooter is...anemic...for my tastes. But I love building/upgrading PEVs, and these are great little platforms for doing just that. First, I extracted the controller, battery, brakes, and rear motor. (In hindsight, I really should...

endless-sphere.com

 

[Zambam]

I came across a Fiido for cheap and had no ongoing projects, so I thought why not. I wanted a project to test out a battery using 46950 cells, and this setup was perfect.

Specs:
Fiido Q1S Frame
2x Stock Q1S geared hub motors, front & rear
20S1P EVE G16 4695E Battery (72V 32Ah, 120A max discharge). JNFN (ANT) BMS
Monorim dual crown air forks
Flipsky FT85BD dual motor controller
Brake lights, horn, and headlights using the Flipsky's dedicated 12V outputs
Custom 3D printed controller housing (Black ABS)

The two stock motors provide great torque at 72V, but max out at about 50kph due to gear limitation. They easily handle being fed 20amps each with 5amps of Flux weakening (which really only adds a few kph at most). All in all, a super fun little scooter at this power

A few notes on the battery as this is definitely not a common, nor recommended way of using these cells. They were spot-welded using Al-Ni composite strips on the postitive terminal (which is Aluminium). These strips help facilitate enough heat to produce a decently solid weld, which can then be welded on top of with a Cu-SS sandwich. This really pushed the limits of my Awithz P30C welder, but I was happy with the result. The Cu is 0.2mm x 20mm with 0.1mm SS on top.

View attachment 385453
View attachment 385457
View attachment 385447

@mrmojorising Do you think the FT85BS V2.0 can easily replace the controller in my iScooter i12 , running it on its stock 36V battery (I have 2 of them that I will parallel to double capacity)? I need it to go 20- 24 mph, have better acceleration and hill climb ability.

As for programming, I have an old Chromebook and an old 2017 iMac, no Macbook or Windows. Is that going to be a problem?

 

[mrmojorising]

@mrmojorising Do you think the FT85BS V2.0 can easily replace the controller in my iScooter i12 , running it on its stock 36V battery (I have 2 of them that I will parallel to double capacity)? I need it to go 20- 24 mph, have better acceleration and hill climb ability.

As for programming, I have an old Chromebook and an old 2017 iMac, no Macbook or Windows. Is that going to be a problem?

Stock batteries on cheap scooters are often just as much a limiting factor as the controller. Considering the iscooters specs, I wouldn't be surprised if the battery BMS is limited to about 15amps

The flipsky controller will also not match the connectors out of the box, so often requires a little bit of wiring DIY. I found it easiest to buy a JST-SM crimping kit to match all connections to peripherals i.e. throttle, brake, hall sensors etc...

 

[Zambam]

Stock batteries on cheap scooters are often just as much a limiting factor as the controller. Considering the iscooters specs, I wouldn't be surprised if the battery BMS is limited to about 15amps

The flipsky controller will also not match the connectors out of the box, so often requires a little bit of wiring DIY. I found it easiest to buy a JST-SM crimping kit to match all connections to peripherals i.e. throttle, brake, hall sensors etc...

Thanks for the tip on JST-SM crimping kit! Nice to be able to plug everything together and not have to cut/ splice wires.

Ordered a FT85BS with Bluetooth on Amazon, better price than what I found on aliexpress. When I get around to install the Flipsky, I'll probably go from 36 to 48V battery.

 

[Zambam]

Stock batteries on cheap scooters are often just as much a limiting factor as the controller. Considering the iscooters specs, I wouldn't be surprised if the battery BMS is limited to about 15amps

The flipsky controller will also not match the connectors out of the box, so often requires a little bit of wiring DIY. I found it easiest to buy a JST-SM crimping kit to match all connections to peripherals i.e. throttle, brake, hall sensors etc...

Is this the correct kit I'd need? Thx!

 

[ljbred08]

Is this the correct kit I'd need? Thx!

Not quite sure why he said JST-SM... the correct one for Flipsky controllers like that is the JST-PH. Below is the kit I got, I think I literally just looked for the cheapest option Amazon had (I did pick one that had XH too on purpose because I wanted those for something else. XH is the standard for lipo balance leads.)

JST-SM is the standard for throttle connectors, not much else. Unless your scooter already has a bunch of those I don't see a huge reason to get any, if you did you could just look for a combo kit. (It is also the standard for addressable strip lights, but that is irrelevant.)



@mrmojorising feel free to correct me if I'm wrong I just know that every Flipsky controller I've used has PH connectors, and the FT85BS does not look like an exception.

 

[mrmojorising]

@mrmojorising feel free to correct me if I'm wrong I just know that every Flipsky controller I've used has PH connectors, and the FT85BS does not look like an exception.

Yeah, I'm pretty sure flipsky actually use the tiny JST-GH 1.25mm connectors on their latest boards for their onboard connections and PH for the pigtails ends, but these are very fiddly to deal with. The GH are different from PH as they have a locking latch

Since flipsky supply every controller with pigtails that already have these connectors crimped, you can use JST-SM on the other end as I find them much easier to crimp, plus you'll find many common escooter accessories already have SM connectors crimped when you purchase them

You can absolutely get the JST-GH or PH as well, but I find SM connectors more versatile and easy to use

 

[mrmojorising]

Is this the correct kit I'd need? Thx!

And yeah, this kit is very similar to what I have