Are the internal batteries user-serviceable/replaceable?

Can I fly with your lights?

Yes! The only flight restrictions are for UNprotected Li-Ion cells, and all our products have protection circuits, so you can bring all our lights in checked bags or carry-ons with no restrictions.

Can I hook this light up directly to my eBike battery?

Short answer: for now, only if your eBike has a USB output...

Can I leave my light on the charger forever?

Yep! There is no way to mis-charge your light, more detail here...

Do these lights have a lockout mode?

They do not for a multitude of reasons, read more here...

How do I extend runtime with a external USB power bank?

Plug a USB power bank into the light from the start of the ride and it will charge while you go, giving you much more runtime when you need it, read on for more specific details.

How much is runtime impacted by cold weather?

How should I store my light in the offseason?

You mean if you have an off-season, eh? Just top off the charge and keep them indoors, easy enough!

I charged my light overnight and it's not full, why?

Entirely depends on your USB charger's specifications... (read more)

What are the best charging practices to make my lights last?

Keep 'em charged and indoors when not in use, simply put. More specifics below...