GT E-drive from Russia

[andreym]

In memories of gt-i drive:
RIP

I`d better say, "upgraded"

 

[Allex]

Some one is watching The Walking Dead

 

[ivanovlev]

...and Vampire Diares =)

The controller has found its place:

 

[madin88]

now with the controller installed to the frame you need no more cooling fins
it looks really nice. lots of space for the battery in there. any plans yet?

 

[ivanovlev]

In plans 4...4.5kwh li-ion LG D1 or its analog (~400 pcs) as 80v@58ah. The ribs on the spot, just on the other side

 

[madin88]

wow, 4kWh are awesome. of course it will be a bit heavy too.
you should use a Max controller for this big battery :lol:

 

[ridethelightning]

by madin88 » Sat Apr 19, 2014 6:18 pm

wow, 4kWh are awesome. of course it will be a bit heavy too.
you should use a Max controller for this big battery

+1

this gets me thinking about higher capacity cells vs high discharge.

what price did you get for the LGD1 cells?

with this setup, you could probably go for days without charging...ofcourse it depends on distances...

 

[ivanovlev]

First video from cycle "How to build e-bike in 7 days"

[youtube]pCPmEOUmU8Y[/youtube]

 

[madin88]

how wide is the frame between knees?
is this a motorcycle damper for the rear? it looks very big

 

[ivanovlev]

15cm wide, and 125cm result between axes. And yes, this is a pitbike shock-absorber (270mm)

 

[Lebowski]

very cool video, thanks for posting and I'm looking forward to the next I build my own motors and recognise many of the steps you do, especially
the vacuum cleaning, man, I always have the feeling half the time is spend vacuum cleaning (I build in my appartement too). I never worked with
printed templates though as I found out the printer I use has a slightly different scale for x and y, so a circle becomes a slight oval when printed

 

[ivanovlev]

So I checked template with every detail. The first two printed results were incorrect

 

[Allex]

So this frame does not come as predrilled? Or is it just your request from the manufacturer?

 

[ivanovlev]

Both variant are possible

 

[madin88]

what kind of stuff is this "black paste" you put on the screws, washers and between the plates?
is it some kind of silicone glue to keep out the water?

 

[ivanovlev]

Afformative. And to protect from dust between metal surfaces

 

[ivanovlev]

[youtube]67qjmwaqgFs[/youtube]

 

[Allex]

Wish I had a garage for my hobby projects, working in apartments really sucks. That oil looked very dirty, how many kilometers did you roll since last change?

 

[ivanovlev]

This oil since last spring. It's about 15000 km, including winter

 

[ridethelightning]

that Chaika frames looking really nice!

 

[GCinDC]

Now 1300 pelican-case contains a 2600(!) watt-hour of the elements 18650 3.7v li-ion LG ICR18650 D1 3000ma in the configuration 20s12p (80v36Ah) with a total weight of 12kg.

what's max discharge rate for these cells? the charts show .2A - 5A, and when i looked them up elsewhere, i saw max discharge of 30A. but you're pulling more current than that i expect...

i'm wondering how they compare to lipos. safer, i expect?

are you able to keep the same configuration to put inside the new frame or will you use pelican again?

awesome info in this thread. i gotta check out that dashboard app.

 

[full-throttle]

Thanks for posting the build videos. Very enjoyable to watch. Keep them coming!

One thing of living in apartments I hated is lack of space.

Anyway, here's something in return :lol:
[youtube]rp8hvyjZWHs[/youtube]
Kind of appropriate, don't you think?

 

[ivanovlev]

are you able to keep the same configuration to put inside the new frame or will you use pelican again?

yep, at this moment:



The new battery (440pks, 22s20p, 95v 60ah ~4840wh) during welding. Today ready only 1\5 of this - 5s20p

 

[Allex]

i'm wondering how they compare to lipos. safer, i expect?

are you able to keep the same configuration to put inside the new frame or will you use pelican again?

awesome info in this thread. i gotta check out that dashboard app.

Those D1 cells are not for performance use. They have lots of capasity but lacks the punch. And yes, def. safer than lipos. If you want punch look for Sony VTC5, samsung r25 or LG HE2

 

[ivanovlev]

Fresh day:

[youtube]nLlUxK1tW-E[/youtube]