I do not think I had much difficulty to find after purchasing rechargeable batteries for this device. The battery size is pretty bad (LR1 / Lady), I think they could be based on AAA batteries even slightly extend all because if you want to find cheap
Practical fixing because my bike seat post is big enough. Compact, a single LED but really powerful, 300m visibility, autonomy of 60h with two LR1 1.5V batteries, removable.
