bontrager flare rt not charging. Trek recalls some Bontrager Flare RT and Ion 700 RT lights Easily attaches to your handlebars, helmet or bike mount. Bontrager Flare RT not working : TrekBikes I bought it through a major sports store last season. Bontrager Flare RT Battery level indicator - Edge 1030 Plus … Bontrager flare RT tail light battery indicator. : TrekBikes The Bontrager Ion RT and Flare RT light set are a great example of this transformation. With diminutive sizes, the Ion RT headlight and Flare RT taillight offer daytime visibility with decent run-time and USB rechargeable batteries. Ion Pro / Ion 200 RT / Flare RT GPS Bicycle Light User Manual