Jimmy,
We do hope to build a few of these tandems when we return from our trip, there's currently not enough time left to build and sell frames before our departure!
jorhyne1, the main reason I chose the GBS batteries is because of their cleaner and more protected terminal covers. Also, they have a sweeter BMS. Here are all the advantages straight from Elite Power Solution's website:
• Advantage of GBS 2nd Generation Li-ion Batteries Compared To Thunder Sky Batteries:
- 10% higher energy density by weight and by volume;
- Superior safety performance due to patented new safety valve and pressure cap designs;
- Batteries do not explode or catch fire when batteries are shorted or punctuated resulting in internal shorts;
- More robust connection due to new electrode terminal design using four rivets or four screws per terminal; Prevent loose connections caused by vibration;
- Reduced impedance due to improved electrode terminal design;
- Improved cycle life;
- New cell structure better facilitates BMS integration and battery pack formation, and improves air circulation.
This weekend we had less time to work on the trike, but we did manage to get some small but important things done. The aluminum skidplate and battery tray is finished, so we welded on small brackets to the frame to get it bolted up. The battery tray is extremely strong, we're very happy with that. Also, we were able to mill up some Delrin guides for the chain tubes. Now we're pretty much waiting for the battery and motor before we move onto the next step. The batteries should arrive Thursday. We're running around on the teeny 16" plastic wheels while our beefy 20" wheels are being built.
Here are some pictures of what we finished up this weekend:
These Delrin guides will be polished up, and the nylon tubes will be replaced with new pieces that aren't patched together!
Dan took the corner too fast!!
He just can't seem to get the hang of this thing!!
That's all for now! I'll hopefully have some more updates for you sometime around next weekend.