Originally Posted by
flangehead
I've had good luck with inner tube rubber bands. They don't last forever (hence 2) but they last a long time and heaven knows, I've got a lot of raw material to work with...
I like the rechargeable AA or AAA systems for just this reason. Also, they just get dimmer whereas many of my USB-recharge lights turn off at low voltage. I run multiple lights forward/rear for redundancy, but I'd rather have a dim light than none at all.
I also have some cheap lights that I sometimes use around town near home, those I also use the same inner tube rubber bands you use, the inner tube rubber lasts much longer than regular rubber bands. But my Planet Bike lights do not need the rubber bands to hold them together, but perhaps they will some day with enough use.
I used to recommend the white color Ikea Ladda AAA and AA batteries over Eneloops, but they have changed their models and no longer make them. So, now I recommend Eneloops. I started using Eneloops over a decade ago, some of mine that are that old are still working like new.
Touring, I am charging up my batteries in a AA/AAA charger that is powered by USB, use my power bank to charge them, the dynohub charges up the powerbank.
The single green LED in the photo below means one AAA is still being charged, the others are charged up.
