Giant cruiser budget build

Welp, I've taken a long hiatus from here, but I've found my passion for ebikes again (translation: the divorce is over :LOL:).

I'm picking back up on this project because it has a few issues that I sort of left with temporary patches.
  • Left it with a hailong battery for a long time, not finishing the wood battery box I had planned
  • Never made a chain-guard for it
  • Welded the rack and generally cleaned it up, but never finished the wood deck or powder coated the metal (or nickel plate?)
  • Whitewall tire in the rear has the wall separating from the tread... wobbles when I ride.
  • Headlight is cheap and the bracket is breaking
  • Controller never permanently mounted or wiring cleanly managed
  • Two-legged kickstand is less than ideal, out of balance, falls over
Other than the above, this bike has performed FAR beyond what I expected. Fast, smooth, comfortable and powerful... it's a joy to ride!

So now I'm starting with finishing the design for the battery box. I am going from the hand-cut cardboard toward laser-cut. Cad model shots below:

rbf box 1.png

rbf box 2.png

rbf box 3.png

Cell arrangement isn't permanent yet... I'm working with what voltage/current specs I want. 132 cell capacity as it sits now (18650s). I'm probably going to tweak the design further to accommodate a base-runner controller at some point. I never liked the controller hanging out there behind the seat post.

Anyway, I'm back in the game and excited!
 
That is a beautiful battery pack.

What are you planning to use for cells in 2024? I saw back in 2019 you were planning on using laptop cells:


P.S. 21700 cells have dropped in price to the point of being cheaper (per Wh) than 18650. You might want to consider those as well.
 
That is a beautiful battery pack.

What are you planning to use for cells in 2024? I saw back in 2019 you were planning on using laptop cells:


P.S. 21700 cells have dropped in price to the point of being cheaper (per Wh) than 18650. You might want to consider those as well.
Thank you! Yes I have been eyeballing the 21700s, as the 18650 format is kind of obsolete for capacity and performance. Its a simple thing to resize this box for 21700s.
 
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