Yes, a little cmos battery. I have to take one out myself to reset the bios! You can download the manual from acer I think to locate it. It does invole carefully removing some things.
Transitional cell cancer of the renal pelvis and ureter is a disease in which malignant (cancer) cells form in the renal pelvis and ureter. The renal pelvis is the top part of the ureter. The ureter is a long tube that connects the kidney to the bladder. There are two kidneys, one on each side of the backbone, above the waist. The kidneys of an adult are about 5 inches long and 3 inches wide and are shaped like a kidney bean.
From outside in, they are the renal capsule, the renal cortex, and the renal medulla. Each can be identified by its appearance and color. The renal capsule is a transparent membrane that lines the outer part of the kidneys and acts as protection against infection and injury.he renal cortex is basically the secondary layer of the kidneys in humans and most other mammals. It tends to be thicker than most of the organâs inner tissues, and in many ways serves to protect the organ and keep it insulated.