Replacement USB Charging Cable USB-C Charger Cord Compatible for Sony WH/WF-1000XM5 WH/WF-1000XM4 WH/WF-1000XM3 WH-XB910N WH-H910N WH-CH510 CH520 CH710N CH720N Wireless Headphones (50CM/Black)

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If you store the headset for a long time, charge the battery to its full capacity once every 6 months to avoid over discharge. If the headset is not used for a long time, the indicator (red) may not light up when you connect the micro- USB cable to charge the headset. Wait for a specified amount of time until the indicator (red) lights up. If the rechargeable battery has not been used for a long time, its duration may shorten. However, the battery life will improve after a few recharges.

Tips on charging headphones (WF-1000XM4) | Sony UK

If the headset is not used for a long time, the rechargeable battery usage hours may be reduced. However, the battery life will improve after a few recharges. If you store the headset for a long time, charge the battery to its full capacity once every 6 months to avoid over-discharge. Connecting the headset to both a music player and a smartphone / mobile phone (multipoint connection) The noise canceling function cannot be used while charging or if kept connected to the computer after charging is complete. If the life of the built-in rechargeable battery drops significantly, the battery should be replaced. Consult your nearest Sony dealer for replacement of the rechargeable battery. If you store the headset for a long time, charge the battery to its full capacity once every 6 months to avoid over-discharge.The headset cannot be charged when the computer goes into standby (sleep) or hibernation mode. In this case, change the computer settings, and start charging the headset once again.

WH-1000XM4 | Help Guide | Charging the headset - Sony

The headset can be also charged by connecting the headset to a running computer using the supplied USB Type-C cable. If the headset detects a problem while charging due to following causes, the indicator (red) may turn off or flash although charging is not complete. In this case, charge again within the charging temperature range. If the problem persists, consult your nearest Sony dealer. If the headset detects a problem while charging due to the following causes, the indicator (red) flashes. In this case, charge once again within the charging temperature range. If the problem persists, consult your nearest Sony dealer. Time required for charging the empty battery to its full capacity. The time may be different depending on the conditions of use.If the headset detects a problem while charging due to following causes, the indicator (red) may turn off, although charging is not complete. In this case, charge again within the charging temperature range. If the problem persists, consult your nearest Sony dealer.

WH-1000XM3 | Help Guide | Charging the headset - Sony

You can use the headset by connecting the supplied headphone cable, even while charging the headset. If the headset is not used for a long time, the indicator (red) may not immediately light up when charging. Please wait a moment until the indicator lights up.

If the headset is not used for a long time, the indicator (red) may not light up when you connect the micro-USB cable to charge the headset. In this case, do not disconnect the micro-USB cable from the headset: wait a few minutes until the indicator (red) lights up.