Originally Posted by
John_1961
I just use the back USB port on mine and recharge them that way saves time and money.
I probably would do the same if I ride a lot at night. I have a rechargeable Cateye headlight on another bike.
But with an AA battery I don't have to worry about it dying. My Rapid 3 headlight on this bike also uses the same battery so I just carry one spare battery in my top-tube bag.