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.
In human anatomy, the pelvis (plural pelvises) is either the lower part of the trunk, between the abdomen and the thighs (sometimes also called pelvic region of the trunk) or the skeleton embedded in it (sometimes also called bony pelvis, or pelvic skeleton). The sides of the male pelvis converge from the inlet to the outlet, whereas the sides of the female pelvis are wider apart. 2  The angle between the inferior pubic rami is acute (70 degrees) in men, but obtuse (90-100 degrees) in women. 3  Accordingly, the angle is called subpubic angle in men and pubic arch in women.