Can anyone recommend me a bike light that is rechargeable? I would prefer something USB based for compatibility reasons. I have a decent bike light now. The problem is that it runs on AAA batteries which would be fine, but the optimal light output is 50% charge and above. I don't want to have a pile of half charged AAA batteries when the only other devices I can use them in is remotes and my grill starter. I don't want to "get my moneys worth" by using all the battery. I should say I'm only out after dusk a couple of times per month, but when I am I want full bright light for safety reasons.
I've been looking at the Light and Motion Urban line such as this one.
I use this and it works well. I also grabbed this rear light and this dual charger. Both of the lights I used blink the power button when they are low, which is nice. I use them daily for about 10 mins and only bring them to charge once a month or so.
The lumen amount is lower on mine by a significant amount, but that requirement is really related to how/when you bike.
I don't have input on bicycle lighting per se but I'd like to point out that 18650 rechargeable lithium cells are a pretty mature battery technology with excellent discharge/voltage characteristics for lighting. I have had no trouble getting chargers and cells from Amazon et al for other projects and would readily consider bicycle and handheld lights which use them.
Cygolite brand light with USB charging has worked well for me too.
I actually misplaced it just now so @Tushon thanks for the link. Forgot the brand even. Lost & Found is bound to pull through every once in a while, right?