Hi ZZ1234
您好，產品的保固日期會依照發票上的購買日期為依據，可以透過提供發票讓我們來幫您更正實際的保固起始日，如果產品顯示以製造日期或是出貨日是正常的哦，有鑑於您提到此為活動贈品，沒有發票證明，所以就無法透過上傳發票更新保固的方式來延長。小編會再私訊您索取產品序號，請相關單位確認後再給您答覆，謝謝。
Hi mordulj
Thank you for reaching out to us with your question. Based on the information you provided, it appears that the battery's capacity cannot be restored by the usual charging and discharging methods. Once the AC power is disconnected, the pow...
