Добрый день.
Являюсь обладателем данного плеера и зарядного устройства TS-PA2M (фирменное трансцендовское).
Оба устройства, к счастью, сделаны в Тайване и проходят верификацию на сайте Transcend.
Пользуюсь чуть более 3 недель. Зарядка плеера составляет 2,5 часа. Затем 18 часов автономной работы (Screensaver blank, lurics sync disable, отключение дисплея через 20 сек.) и затем выключение.
На коробке справа есть значок с цифрой 30, на коробке написано 30 часов, в инструкции 30 часов.

Отправил запрос в техническую поддержку Transcend, wbnbhe. их ответ:
Dear Customer,
First of all, many thanks for your letter.
According to the S/N you provided, this MP840 could play music up to 22 hrs.
We tested the longest time it can play is under conditions such as Screen Saver enabled (choose Blank), Lyrics Sync. Disabled, and playing music continuously (no power off and power on during the period).
The playback time will be related to the volume you played, and the file you played.
Please check that the volume is set to middle range, and the file compression rate/ bit rate is 128Kbps. Higher rating will cause the playback time to decrease.
If this way still can't help to solve your problem, please kindly take the product with the receipt back to the original retailer and ask for a repair or replacement service.
To obtain services from an authorized Transcend partner, please click below hyperlink and find the one around your living region accordingly.
It's our responsibility to remind you, some dis****utors will charge the service fee in compliance with their policy, or may not be willing to provide services if the behavior of buying was not from them.
If you faced any problem with the retailer/seller, please contact us again with your Serial Number, and then we will try to help you with the repair or replacement process.
Sorry for the inconvenience.
Говорится о 22 часах максимальной работы.
Где заявленные 30 часов?