![Philips Care on Twitter: "@qwerticulus Hi there, thanks for asking and we're here to help! The serial number which is also the production date can be found at the back side of Philips Care on Twitter: "@qwerticulus Hi there, thanks for asking and we're here to help! The serial number which is also the production date can be found at the back side of](https://pbs.twimg.com/media/DtLQRXOWwAE-4K3.jpg)
Philips Care on Twitter: "@qwerticulus Hi there, thanks for asking and we're here to help! The serial number which is also the production date can be found at the back side of
![Philips Sonicare HX6200 Series Battery Replacement incl. HX6210 HX6220 HX6240 HX6250 - ToothbrushBattery.com Philips Sonicare HX6200 Series Battery Replacement incl. HX6210 HX6220 HX6240 HX6250 - ToothbrushBattery.com](https://toothbrushbattery.com/wp/wp-content/uploads/2022/07/Philips-Sonicare-Series-2-toothbrush-dismantle-HX6210-HX6220.jpg)
Philips Sonicare HX6200 Series Battery Replacement incl. HX6210 HX6220 HX6240 HX6250 - ToothbrushBattery.com
![Help!!! Why can't I find a serial number anywhere on this. I have 5 of the same. None of them will connect with the base either. : r/Hue Help!!! Why can't I find a serial number anywhere on this. I have 5 of the same. None of them will connect with the base either. : r/Hue](https://i.redd.it/qsa27xpdxk051.jpg)