I have two Bontrager lights, front - Ion Comp R 700, and rear -Ion 200 RT - which have issues with the charging indicators. For the rear Flare RT, the red light blinks for awhile, but then stops, and I have to jiggle the cord to get it to start blinking again. I can't tell when charging is finished because of this. For the front, there is no blinking at all so I have no idea what the status is. Mainly, I just leave it plugged in for a long time and hope it's fully charged.

Did I just get two duds by chance, or have others had problems with Bontrager lights?
Thanks.