SZZS specific CEF50-main thread (initial builds and troubleshooting related only)

TCFlowClyde · Sep 29, 2023

TCFlowClyde said:
Sorry is it an LG/Samsung/Panasonic and what amp/capacity?
View attachment 125804

The vid guy says the 21700 5.8 A 21700 cell yielding 16% more juice overall and is newer chemistry.

Yet, I see a Samsung 8.6A out there. Wondering how our new our 21700 cells battery would stack up (given same motor Voltage and battery configuration) and if it's a little hype on his end.

I know it's always risky asking this type of question, but someone has to be brave enough to ask the "dumb" questions...just for improved learning.
View attachment 125803

Follow up.
Looks that would yield 5.8A as well.

TCFlowClyde · Sep 29, 2023

So the hottest battery tech out there is the M58T "new" cell ?

Myalteregohamish · Sep 29, 2023

TCFlowClyde said:
Sorry is it an LG/Samsung/Panasonic and what amp/capacity?
View attachment 125804

The vid guy says the 21700 5.8 A 21700 cell yielding 16% more juice overall and is newer chemistry.

Yet, I see a Samsung 8.6A out there. Wondering how our new our 21700 cells battery would stack up (given same motor Voltage and battery configuration) and if it's a little hype on his end.

I know it's always risky asking this type of question, but someone has to be brave enough to ask the "dumb" questions...just for improved learning.
View attachment 125803

I’m very interested in hearing the answers to this.

ymmr32 · Sep 29, 2023

spokemon said:
Any more details on this? Are they producing this yet? Photos and kg?

The only response I received was regarding the frame. Deliveries of frames and cases are expected to begin in late October. I don't know the price yet.

temon10 · Sep 30, 2023

Myalteregohamish said:
What would you say are the major differences with this firmware vs the stock.

Delivery power on low cadence is much better, I also feel less battery consumption. Today ride 40km with 550m elevatioan gain battery start on 88%, arrive at home at 70% left.

LAnton · Sep 30, 2023

Myalteregohamish said:
I’m very interested in hearing the answers to this.

When I disassembled the housing of the 720W battery, I was disappointed. The battery was packed with blue shrink wrap. I was sorry to tear the film, because the battery was made very well. The seller claims that the battery is assembled on Samsung. We can assume that the capacity is 5000mah

ymmr32 · Sep 30, 2023

Hello. I got a BEST PRO, but I don't know how to change the motor voltage from 36 to 48V. Does anyone know?

brbr · Sep 30, 2023

ymmr32 said:
Hello. I got a BEST PRO, but I don't know how to change the motor voltage from 36 to 48V. Does anyone know?

You need to use the right firmware for this.
I’m not sure I’ve seen the firmware in the list for 48v?
I did it - from 36 to 43 - with besst , not besst pro, and it’s easy!

spokémon · Sep 30, 2023

Neeko DeVinchi said:
Dropper insertion seems generous on this XL. But the charge port could pose a potential problem. But I'll grab a 210 one up dropper this weekend.

Your dropper won't get past the top screw on the charge port. That said, by my calculations for your XL frame, your seatpost insert length should be 324mm. Enough to swallow whole your 210 Oneup post.

ymmr32 · Sep 30, 2023

Where can I get that firmware?

patdam · Sep 30, 2023

ymmr32 said:
Where can I get that firmware?

ask to your motor supplier (and share it here

)

ymmr32 · Sep 30, 2023

spokemon said:
Your dropper won't get past the top screw on the charge port. That said, by my calculations for your XL frame, your seatpost insert length should be 324mm. Enough to swallow whole your 210 Oneup post.

I have an L size frame. I relocated the seat tube's charging post to the motor cover and shaved the inside of the frame to make it compatible with BIKEYORK 213mm.

Myalteregohamish · Sep 30, 2023

temon10 said:
Delivery power on low cadence is much better, I also feel less battery consumption. Today ride 40km with 550m elevatioan gain battery start on 88%, arrive at home at 70% left.

Ok I will upgrade. Does the voltage mater for this firmware? I have the 720w battery.

spokémon · Sep 30, 2023

ymmr32 said:
I have an L size frame. I relocated the seat tube's charging post to the motor cover and shaved the inside of the frame to make it compatible with BIKEYORK 213mm.

View attachment 125839

Nice work, but it looks a bit risky down there. Aren't you afraid of damage from water and motor cover strikes?

temon10 · Sep 30, 2023

Myalteregohamish said:
Ok I will upgrade. Does the voltage mater for this firmware? I have the 720w battery.

that's 36v firmware version. mine also 36v 720wh battery.

mike_kelly · Oct 1, 2023

ymmr32 said:
I have an L size frame. I relocated the seat tube's charging post to the motor cover and shaved the inside of the frame to make it compatible with BIKEYORK 213mm.

View attachment 125839

Given how delicate the motor cover is and how many people have already broken them do you think that is a good idea?

calvintys · Oct 2, 2023

i think 47V its better option because it is less stress for the battery as in less AMP require if we compare it to 36V if the motor out its the same between 36v Vs 47v. Less amp equal to less heat equal longer life,

mike_kelly · Oct 2, 2023

calvintys said:
i think 47V its better option because it is less stress for the battery as in less AMP require if we compare it to 36V if the motor out its the same between 36v Vs 47v. Less amp equal to less heat equal longer life,

Since the 36v motor is designed and wired for 36v you are not going to have more heat. Fewer amps yes and potentially lighter but they are probably all wired for 36v for economy of scale.

calvintys · Oct 2, 2023

mike_kelly said:
Since the 36v motor is designed and wired for 36v you are not going to have more heat. Fewer amps yes and potentially lighter but they are probably all wired for 36v for economy of scale.

What i mean its the battery not the wires , on 36v high amp, wire don't make much difference but battery make alot of different in high amp Vs low

temon10 · Oct 2, 2023

calvintys said:
i think 47V its better option because it is less stress for the battery as in less AMP require if we compare it to 36V if the motor out its the same between 36v Vs 47v. Less amp equal to less heat equal longer life,

47v? there's no Bafang motor with 47v version

calvintys · Oct 2, 2023

temon10 said:
47v? there's no Bafang motor with 47v version

Sorry 48v

ymmr32 · Oct 2, 2023

mike_kelly said:
Given how delicate the motor cover is and how many people have already broken them do you think that is a good idea?

I broke it once and repaired it, but there's just a charging socket, so it doesn't bother me. The cover was badly cracked and the pieces could not be recovered, so I lined the large gap with Gorilla tape and molded it with silicone on the surface.

temon10 · Oct 2, 2023

calvintys said:
Sorry 48v

But Bafang don't share 48v firmware version. I asked Linda but nothing till now, although they sell 48v motor and 48v battery package.

calvintys · Oct 2, 2023

temon10 said:
But Bafang don't share 48v firmware version. I asked Linda but nothing till now, although they sell 48v motor and 48v battery package.

I am getting my on early nov, which is 48v but i am not sure if i can extract my firmware n share it here

haydz26 · Oct 2, 2023

ymmr32 said:
I have an L size frame. I relocated the seat tube's charging post to the motor cover and shaved the inside of the frame to make it compatible with BIKEYORK 213mm.

View attachment 125839

what cranks are these? carbon?

forsa355 · Oct 2, 2023

thaeber said:
Arround 2.250 mm for 27.5 x 2.6. I run 2.100 mm, giving a little tailwind on max speed, but still withing legal limits (25 kmh + 10% max)

how did you set the wheel size? The option is greyed out on my DP C244 display. In the Bafang Go+ app I can see the wheel diameter and perimeter in "vehicle information" but can't seem to change it anywhere there either

Zimmerframe · Oct 2, 2023

forsa355 said:
how did you set the wheel size? The option is greyed out on my DP C244 display. In the Bafang Go+ app I can see the wheel diameter and perimeter in "vehicle information" but can't seem to change it anywhere there either

Just to make sure all the details are correct ...

I didn't think the 244 had bluetooth ? Only the 245? and only the 245 v3 has 5.1 so can connect to Go+ not just Go ?

forsa355 · Oct 2, 2023

Zimmerframe said:
Just to make sure all the details are correct ...

I didn't think the 244 had bluetooth ? Only the 245? and only the 245 v3 has 5.1 so can connect to Go+ not just Go ?

sorry, I meant DP C245. I have a V3 and the it works with Go+, just can't seem to set the wheel diameter anywhere

Zimmerframe · Oct 2, 2023

forsa355 said:
sorry, I meant DP C245. I have a V3 and the it works with Go+, just can't seem to set the wheel diameter anywhere

Still waiting for mine .. so can't help :-(

Myalteregohamish · Oct 3, 2023

forsa355 said:
sorry, I meant DP C245. I have a V3 and the it works with Go+, just can't seem to set the wheel diameter anywhere

I had to unlock it in Besst by first setting it in Besst. Now it’s not greyed out but I can’t change it either.

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