HP HP-11C User Manual

Appendix D: Battery, Warranty, and Service 233
CAUTION
In the next step, replace all three batteries with fresh ones. If
you replace only one or two of the batteries, an old battery
may leak. Furthermore, be careful not to insert any battery
backwards. If you do so, the contents of Continuous Memory
may be lost and the batteries may be damaged.
Insert three new batteries
under the plastic flap or
flaps shielding the battery
compartment. They should
be positioned with their flat
sides (the sides marked +)
facing toward the nearby
rubber foot, as shown in the
illustration on the calculator
case.
Insert the tab of the battery
compartment door into the slot
in the calculator case.
Lower the battery compart-
ment door until it is flush with
the case, then push the door
inward until it is tightly shut.
Press to turn the calcula-
tor on. If for any reason
Continuous Memory has been
reset (that is, if its contents
have been lost), the display
will show Pr Error. Pressing
any key will clear this message
from the display.

HP HP-11C Specifications

General

Brand	HP
Model	HP-11C
Category	Calculator
Language	English