I'm an unapologetic Zooz Bikes fanboy. I was lucky enough to buy one of their initial run of 100 bikes back in 2020, and I've loved riding it ever since. But getting in early has its downsides - Zooz has upped their game in subsequent revisions of the bike, totally improving their product. The bikes aren't cheap, and I'm unlikely to throw down for a new one any time soon...
...but there's hope! Their parts and accessories page keeps expanding, and sometimes new parts can be retrofitted to the OG bikes! Case in point: their new bikes come with a headlight stem, powered by a dedicated connection on the bike. That headlight stem can be purchased alone, but my bike doesn't have a built-in connection to power it. I decided to go for it anyway, and find a way to make it work.
The battery tray on the Zooz connects the battery to the motor controller through an XT60 connector. I made an XT60 Y-connector so that I could plug something else directly to the battery in addition to the motor controller.
Then I bought a 12v DC-to-DC converter that's meant for electric golf carts. This particular one takes an input voltage of 36-48v, and produces an output voltage of 12v. This would plug into one side of the XT60 Y-connector, and the motor controller would plug into the other.
Lastly, I bought a 2-conductor Julet extension cable - this is the kind of connector that the Zooz headlight stem comes with. I plugged one end of the Julet extender into the headlight stem, but cut the other end and soldered it directly to the DC-to-DC converter's 12v output. I may want to power more 12v items in the future, but for now I just wanted that damn light beaming ASAP!
The result is sexy as hell! The design of the stem light is a phenomenal example of functional form. And now I don't have to worry about charging a bulky accessory light. Hells yeah Zooz, keep it comin!