I just got this light and the ODL20C. Both of the manuals say the charging LED goes from Red to Blue at completion of charging. Both of my lights slow blink Red when charging and then go solid Red when charging complete. I verified this by measuring cell voltage out of the light with my Fluke 115. Both are at about 4.18x. I even put the cells on my icharger 4010 and ensured they terminated at a 4.20 V charge at 10% termination current. Put the cells back in the lights and plugged them in and same result. Both are solid red. I left them both plugged in for an hour after turning solid red hoping for blue but no dice. I’ve never seen the Blue?