43-1110.fm Page 31 Wednesday, August 18, 1999 8:22 AM

REPLACING THE

BATTERY PACK

If you follow the instructions in “Connect- ing and Charging the Battery Pack” on Page 13, the battery pack should last about one year. If the battery does not hold a charge for more than 2 hours after an overnight charge, replace the battery with a new 3.6 volt, 600 milliamp battery with a connector that fits the socket in the battery compartment. You can order a replacement battery pack through your local RadioShack store.

Install the new battery pack as described below, then charge the battery pack for about 15 hours (see “Connecting and Charging the Battery Pack” on Page 13).

Note: To avoid losing information stored in memory, try to install and begin charg- ing the new battery pack within 2–3 min- utes.

1. Press down and slide off the cover.

2.Gently pull on the battery pack con- nector to disconnect it, then remove the battery pack.

3.Plug the new battery pack’s connec- tor into the socket and place the bat- tery pack into the compartment.

4.Replace the cover.

Cautions:

You must use a replacement battery pack of the same size and type, with the proper connector.

Do not dispose of the battery pack in a fire because it might explode.

Do not open or mutilate the battery pack.

Be careful not to short the battery pack by touching it with conducting materials, such as rings, bracelets, and keys. The battery pack or con- ductor might overheat and burn.

If you have trouble replacing the battery pack, take the phone to your local Ra- dioShack store for assistance.

Important: This product contains a re- chargeable nickel cadmium battery pack. At the end of the battery pack’s useful life, it must be recycled or disposed of properly. Contact your local, county, or state hazardous waste management au- thorities for information on recycling or disposal programs in your area. Some options that might be available are: mu- nicipal curb-side collection, drop-off box- es at retailers such as your local RadioShack store, recycling collection centers, and mail-back programs.

31

Page 31
Image 31
Radio Shack ET-1110 owner manual Replacing Battery Pack

ET-1110 specifications

The Radio Shack ET-1110, a remarkable handheld electronic device from the 1980s, is a notable example of early consumer technology that focused on portability and user-friendliness. Originally released as a combination of a pocket-sized calculator and a basic programming tool, the ET-1110 appealed to a wide range of users, from students to professionals.

One of the main features of the ET-1110 is its sleek, compact design. This device was designed to be lightweight and portable, making it easy to carry around in a bag or even in a pocket. The ergonomic layout included a comfortable keypad that allowed users to input data quickly and efficiently. Its liquid crystal display (LCD) made it easy to read under various lighting conditions, a significant advantage at the time.

The ET-1110 was equipped with various functions that catered to both simple arithmetic operations and more advanced mathematical calculations. It featured functions like addition, subtraction, multiplication, and division, alongside square roots and exponentiation, making it a versatile tool for academic and professional use. Additionally, this device supported a limited amount of programming capabilities, allowing users to store and execute simple sequences of commands – an early introduction to what would become a mainstay in personal computing.

In terms of technology, the ET-1110 used CMOS (Complementary Metal-Oxide-Semiconductor) technology, which contributed to its energy efficiency and long battery life. The device typically operated on a small number of batteries, enabling extended use without frequent replacements. This practicality made it an appealing choice for users who needed reliable performance on the go.

Another notable characteristic of the ET-1110 was its affordability, a hallmark of Radio Shack's strategy to make technology accessible to a broader audience. This pricing approach, combined with the device's functionality, made the ET-1110 a popular choice among budget-conscious consumers looking for reliable electronic tools.

The Radio Shack ET-1110 stands out not only as a product of its time but also as a precursor to the sophisticated portable computing devices that would emerge in the following decades. Its blend of practicality, technology, and ergonomic design reflects an era on the brink of massive advancements in personal electronics, marking a significant step in the evolution of handheld devices.