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.
Their color is reddish-brown and has measurements about: 10cm length, 5cm width, and 3cm thickness. The renal hilum (portal renalis) lies in the medial margin, a space where blood vessels, nerves and the renal pelvis (and its adipose tissue) enter and leave.The kidneys are contained into the renal capsule; a tough capsule made of collagenous fibers and connected on the kidney by areolar tissue.nvelopes. The kidneys are contained into the renal capsule; a tough capsule made of collagenous fibers and connected on the kidney by areolar tissue. As it proceeds medially towards the hilum, it connects with the connective tissue of the vessels which are entering a central recess, the renal sinus.