deecanio wrote:Hi Guys,
Gary, can't wait to see the townie in action - are you swapping the kit straight over from your folder? that would be an awesome setup!!!!
No, it is a separate setup. The folder has a 5303 "Racer", and the Townie's is a 5304 "Cruiser". Each now has a 4840 controller that Bob Mcree modified by replacing the stock FETs with 100V 4110s, and for both, he "adjusted" the current limiter upwards, so that both will allow over 85A. The folder has two 10s4p a123 packs in series, each with embedded LVC boards conncted to the controller's brake inhibit lines. The Townie has bag on the rack in back with four big sub-packs, two that are 6s6p and two setup as 4s6p. Each 6s6p and 4s6p pair are connected in series, and have a 10-cell LVC board connected. Each of these 6s6p/4s6p combos are then connected in series so the total setup is 20s6p, or 66V/13.8Ah.
Yesterday I went on a ride that totaled about 15 miles. For the first 10 miles, or so, I was taking it pretty easy, as my 24-yearold niece was riding with me (on my "other" folder, the one in my current avatar...). I used 5.34 Ah in 10.12 miles, which is 528 mAh/mile. It used 336 Wh, which is a respectable (well, for me anyway...
) 33.2 Wh/mile. Later, I did a speed run home. I don't know how many Ah/Wh I used on that yet, but I hit 48 MPH, and I was blasting up and down every hill.
I didn't get the new MicroLogger on Saturday, so I didn't video this ride. If it comes today, I will do another video.
I think the limit on the second controller is a bit less than it is on the 20" folding bike. Instead of 5500W peaks, I was seeing around 4800-5000W, which is still gobs more than I'll need. The Townie, having better tires and more weight, didn't "burn rubber", like the folder, but I think the acceleration is actually a bit better.