Have been largely lurking here for the past two weeks, because the bike I bought wasn't registered. I didn't want to get all excited to find there was some red tape stopping me registering it.
But now, its all clear! Number plated and road legal. According to the motor registry, the first time since 2012. According to the register of encumbered vehicles, the first time ever. (Yeah, don't ask...)
As a parts bike converted back to a daily ride, there are some limits on the bike. Firstly, the battery pack is the former owner's old 43S1P 40ah LiFePo4 pack which is apparently down to 22ah, and sagging a bit. That's only "just" enough for me, as the longest regular commute for me will be 40km + some for looking for parking. I believe 22ah should give me around 50km, so I'd like a touch more buffer.
So, my first few mods will be:
1. Change headlight globe to something brighter
2. Build a J1772 to NEMA conversion box. My house is already set up with a J1772 charger (my car is a PHEV), and there's 3 free J1772 chargers within 5km of my house.
3. Build a 3Ah, power density LTO booster pack. This should be able to deliver 28kw for 10 seconds and 20-23kw until flat.
The reason I'm going a booster pack rather than a full pack replacement is mainly cost. I'm hoping that since LiFePo4 tends to lose power density faster than it loses energy density, that there might actually be another 10-20% hidden in those cells, but inaccessible because of the LVC sag. Then, between the extra 3ah the booster offers and these hidden amps, I have a bit more of a buffer. Even if I don't, who could say no to a bit more get up and go, right? ;)
Any comments or links to technical info would be greatly appreciated. The search engine on this site leaves a little to be desired... :)
Looking forward to being a part of this very exclusive club!