Mr. Huang, a native of Sichuan, had deep brain electrical stimulation (also called brain pacemaker surgery) 6 years ago with good results. However, in the last two days, Mr. Huang felt a sudden increase in his symptoms and came for a checkup. The test results showed that Mr. Huang’s pacemaker was running out of power, so he underwent a pacemaker battery replacement procedure under local anesthesia, and the procedure went well. The following is the case of Mr. Huang. Name: hy Gender: male Age: 56 years old The patient was admitted to the hospital with the main reason of “progressive bilateral tremor stiffness for 13 years with sudden aggravation for 2 days”. The main clinical manifestations were limb tremor and muscle stiffness, which had been treated with deep brain electrical stimulation implantation. He was treated with deep brain electrical stimulation implantation. He was admitted to the hospital for physical examination: answering tangential questions, difficulty in pronunciation, low voice, and could be heard. There was no obvious deformity of the five senses of the head, and old surgical scars were visible on the bilateral forehead. Bilateral eye movements were not restricted, and bilateral pupils were equal in size and round. The facial expression was dull and reduced. The extended tongue was centered, without tremor and without swallowing difficulties. The neck was stiff. Preliminary diagnosis: Parkinson’s disease Treatment history: After admission, he actively improved the relevant examination and preoperative preparation, and underwent neurostimulator replacement under local anesthesia. The operation went smoothly, and there were no special adverse reactions during and after the operation. The patient recovered well, and the incision healed well with neat alignment and no redness, swelling or exudation. Condition at discharge: clear speech, good mental status, no special complaints of discomfort, good general activity. Discharge diagnosis: 1. Parkinson’s disease 2. Deep brain electrical stimulation after implantation Discharge medical advice: strengthen nutrition, appropriate exercise. Follow up on discomfort. The pulse generator buried in the patient’s chest when the pacemaker is performed is the pacemaker system battery. Non-rechargeable batteries can last 3-5 years or longer depending on the parameters; rechargeable batteries can last 15 years. The specific symptoms of the patient also determine the battery life, with heavy symptoms having a short life span with high battery parameters and the opposite for light symptoms. If the battery is depleted, the pulse generator needs to be replaced; the electrodes and leads do not need to be replaced. This can be replaced with a simple surgical procedure.