Waterproof performance
Batteries
Internal rechargeable device battery
You cannot replace the built-in rechargeable battery yourself. If the battery does not retain its charge for as long as
it used to due to prolonged use, the battery has likely reached the end of its service life. In this situation, contact
your local reseller or our repair center to replace the battery for a fee.
The average service life of the battery is four years. This varies depending on usage conditions.
Disposing of the device
When disposing of this device, follow your local laws and regulations.
J-347/367, U-350 User Manual
Regular Maintenance
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