Change the battery and keep it going. I may have posted about it on here a long time ago. Otherwise look online for a video. Something along the lines of: Remove brush head. Carefully remove the plastic ring near where the brush head fits on. Take charger and use the tool on it to undo the toothbrush base. Carefully pull bottom of toothbrush out. Remove tags of the existing battery carefully... Best to look it up as I might have missed out a step.
been way way higher than 80... just not quite low enough for me to replace my triumph 5000...although i should as the battery is getting tired now
No, still 12 hours.
Just the way the site works, have a look at past deals I am sure they are plenty hot at this price.