This battery is not expensive. You can go to the Philips after-sales service center in Dalian to replace it. Let me check it for you. No. 1-1, No. 192 Minquan North 6th Street, Shahekou District. The phone number is 83635014. There is also the Postal Union Communications on the second floor of Suning Appliances, No. 40 Qingniwa, Zhongjiashan District. The phone number is 82691559. If it's convenient, please call me and ask.