Q-Connect Large Table Top 12 Digit Calculator - Grey - KF15758

The calculator automatically switches between solar and battery power. It prioritizes solar power when sufficient light is available and uses the battery as a backup when light is low.

This model uses a standard button-cell battery as a backup. The specific type is usually indicated inside the battery compartment.

No, this is a basic calculator. It is designed for standard arithmetic operations, percentages, and tax calculations, but does not include advanced scientific or financial functions like square roots or memory functions beyond basic accumulation.

The display accommodates up to 12 digits.

No, the display is not backlit. It relies on ambient light for visibility, enhanced by the adjustable tilt feature.

As a desktop model, it is designed to sit comfortably on a desk. Specific dimensions are not provided but it is larger than a pocket calculator for ease of use.

Ensure the solar panel is exposed to adequate light. If battery power is low, the display may be faint. Replace the battery if the issue persists after sufficient light exposure.

Check if the calculator is receiving power. If the display is working, try pressing keys more firmly. Clean the key area gently with a dry cloth. If the problem continues, the unit may require service.

Ensure you are entering numbers and operations correctly. Press the 'AC' (All Clear) button before starting a new calculation to clear previous entries and operations.