Clean the head and dry the charging contacts
Follow instructions for each component.
Remove only the parts described in the manual
Do not pry off a fixed rim. Check the head, housing and dock separately for cleaning limits.
Keep the dock and cable dry
An IP rating for the handheld device does not automatically cover a dock or cable. Let the contacts dry as directed before charging.
Match replacements to the exact model
Check the part number for a replacement head, dock or cable. The charging connector guide explains why the device-side connector matters.