SCHWARZWILD Bafang M820 with LCE 930 frame

JimLee-Lightcarbon · Nov 3, 2023

El Topo said:
I am so dying to see this. I really would like to see a lighter fat bike build, without the M620. Still haven't given up hope on that one.
A lighter motor and smaller battery should easily shave off 5kg of the current fat bike builds.

now have the fat EMTB carbon frame fit for M510/M560 and battery 840wh, but no frame fit for small battery

El Topo · Nov 3, 2023

JimLee-Lightcarbon said:
now have the fat EMTB carbon frame fit for M510/M560 and battery 840wh, but no frame fit for small battery

Great to hear, which of your frames would that be? I can only find this one for the M620.

TCFlowClyde · Nov 6, 2023

KaroKönig said:
Hi Jim, would you also like a video of the bikes with LCES 004 and LCES 1075 frames? I love them all, every bike can be ridden in a different way. I can't wait to build a new framework from you again.

View attachment 125929
View attachment 125930

Wow! Impressive craftsmanship across the line. Your M820 build is especially stellar work!

Mirkoser · Nov 12, 2023

Hi Karo. Nice. I realized my lc930 with 600wh as well. I designed special 3d printed cell holder for that . Could be very tight with 3x13

but can fit I guess . I have 3x10 21700
I reached 18,6kg. Are you satisfied with the m820 regarding „power reaction/ startup angle“ . My impression is that it is not as quick as my m510 fc2 . I tuned it with besstpro to minimum startup angle but still not fully satisfied

KaroKönig · Nov 13, 2023

Mirkoser said:
Hi Karo. Nice. I realized my lc930 with 600wh as well. I designed special 3d printed cell holder for that . Could be very tight with 3x13 but can fit I guess . I have 3x10 21700
I reached 18,6kg. Are you satisfied with the m820 regarding „power reaction/ startup angle“ . My impression is that it is not as quick as my m510 fc2 . I tuned it with besstpro to minimum startup angle but still not fully satisfied

View attachment 128843 View attachment 128844 View attachment 128845

Nice battery design. I can't see any difference to the M 510 in terms of power reaktion. However, I also have the 43V version.

JimLee-Lightcarbon · Nov 13, 2023

KaroKönig said:
Nice battery design. I can't see any difference to the M 510 in terms of power reaktion. However, I also have the 43V version.

Mirkoser said:
Hi Karo. Nice. I realized my lc930 with 600wh as well. I designed special 3d printed cell holder for that . Could be very tight with 3x13 but can fit I guess . I have 3x10 21700
I reached 18,6kg. Are you satisfied with the m820 regarding „power reaction/ startup angle“ . My impression is that it is not as quick as my m510 fc2 . I tuned it with besstpro to minimum startup angle but still not fully satisfied

View attachment 128843 View attachment 128844 View attachment 128845

Very clean design for cells,
More photos please show it.
the bafang company said the same power output,

raggertje · Nov 13, 2023

Awesome battery design @Mirkoser ! I have already downloaded your STL file that you shared on FB

I can't wait to build my LCE 930 when it arrives.

How did you attach the battery to the frame? I'm also curious about more photos

Mirkoser · Nov 26, 2023

Sorry haven’t made more photos of the finished battery. I used special high voltage heat shrink to protect the battery and it sits very tight in the frame without any movement. Additionally I locked it with plastic screws through the bottle holder threads

Muerte · Dec 8, 2023

KaroKönig said:
Paint-job part 2 :

Fine-sanding of the clear coat and stick on the painting templates
View attachment 123614
View attachment 123615

Mist black-orange and then paint over the effect paint…
View attachment 123616 View attachment 123617

Finally clearcoat
View attachment 123619 View attachment 123618 View attachment 123620

Looks Amaizing, great job

Ktronik · Jan 19, 2024

Amazing!!

I am a bit confused, you used a 48v battery and 48v motor flashed w 43v firmware?? was there a issue w 48v motor and battery???

KaroKönig · Jan 20, 2024

Ktronik said:
Amazing!!

I am a bit confused, you used a 48v battery and 48v motor flashed w 43v firmware?? was there a issue w 48v motor and battery???

The M 820 is currently only available in 36V and 43V versions. My motor is originally a 36V which my salesman flashed for me with the 43v software on request. I only use the 48V battery to get a little more power out of the motor.

Ktronik · Jan 20, 2024

KaroKönig said:
The M 820 is currently only available in 36V and 43V versions. My motor is originally a 36V which my salesman flashed for me with the 43v software on request. I only use the 48V battery to get a little more power out of the motor.

Ahh, I see, I am told there is now a 48v firmware...

KaroKönig · Jan 20, 2024

Ktronik said:
Ahh, I see, I am told there is now a 48v firmware...

I've seen it too, but it's probably for the E-road models.

Verdo07 · Jan 20, 2024

KaroKönig said:
L'ho visto anch'io, ma probabilmente è per i modelli E-road.

Pubblica nel thread 'Bafang m820'

Bafang m820

Clearly this is a motor to be ridden like a normal bicycle. If you don't put in the work, it wont help you much. I was looking for a light ebike and this is a really good one. It is inspiring you to push full all the time. Since the bike(LCE930) is fairly light it is also fun to ride and easy to...

www.emtbforums.com

due firmware...uno e-rod e uno e-mtb...

Radolf · Jun 6, 2024

Freda said:
I just started building a 13S3P battery, but it will still take some time before it is ready. Cells only glued together weigh 2671 grams. View attachment 127065

Hi. How do you glue the cells? (what is the name of the drug?) is the glue flexible or hard? and how tightly does the glue stick to the cell? Greetings

Freda · Jun 9, 2024

Radolf said:
Hi. How do you glue the cells? (what is the name of the drug?) is the glue flexible or hard? and how tightly does the glue stick to the cell? Greetings

I used Wurth polymer glue, it can take heat up to +90 degrees celsius. I just put glue in between and checked the angle with model i made on paper. It sticks very well, but can surely be cut if needed, it stays flexible. It needs to be flexible not to brake from vibrations.
I guess you can use any heat resistant glue that stays flexible.

Radolf · Jun 10, 2024

Thanks for the info. In the meantime, I bought and used Loctite 5970, which has excellent adhesion and, according to the safety data sheet, is resistant to vibrations, and fortunately I am already finishing the construction of the package

Freda · Jun 10, 2024

Oh, sorry for late answer! That looks good, very similar to what I did. I actually ordered new cells last week. I will build a ~500Wh battery from 18650 cells and a small extender.

stesie1 · Jul 24, 2024

KaroKönig said:
Natürlich passt auch die Bremsleitung durch und für den Freiraum am Ausfallende musste ich einen 3mm Kantenbruch machen und das Kabel mit Schrumpfschlauch verstärken

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stesie1 · Jul 24, 2024

KaroKönig said:
Heute wurde das Problem mit dem Geschwindigkeitssensor behoben
View attachment 123794 View attachment 123793 View attachment 123795 View attachment 123796 View attachment 123797

Hallöchen, baue zurzeit ein Light Carbon LCE 28 mit Bafang M620 zusammen! Den Umbau mit dem Speedsensor und Bremsscheibe würde ich auch gerne machen! Woher hast du den speedsensor ! habe schon stundenlang gesucht! Gibt es irgendwas Speziales, beim Umbau zu beachten? Vielen Dank für deine Unterstützung! Gruß Stefan

SCHWARZWILD Bafang M820 with LCE 930 frame

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