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![](https://files.manualsfile.com/69935342-ah-c820w/bg9.png)
0
When the remaining power of the rechargeable battery is running low, the charging
LED flashes at approximately 3-second intervals together with an alert sound.
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You can also check the remaining power of the rechargeable battery on an iPhone. (*)
z
The remaining power of the rechargeable battery can be displayed as a
percentage (%) on an iPhone, but this number is an approximate value.
Contents Preparation Connections Operation
Troubleshooting
Appendix
9
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