Appendix B: Special Considerations
Incorrect battery usage may lead to the leakage of battery fluid, a bursting of the battery, or ignition of the battery. To prevent such accidents, observe the following precautions:
- Do not carry or store battery together with necklaces, hairpins or other metal objects.
- Do not disassemble or modify the battery. The battery contains safety and protection devices, which if damaged, may cause the battery to generate heat, explode or ignite.
- In the event the battery leaks and the fluid gets into your eye, do not rub the eye. Rinse well with water and immediately seek medical care. If left untreated, the battery fluid could cause damage to the eye.
- The temperature range over which the battery can be used is -4 Degrees F (-20 degrees C) to 140 degrees F (60 degrees C). Use of the battery outside this temperature range may damage performance of the battery or may reduce its life expectancy.
- The temperature range over which the battery can be charged is 32 degrees F (0 degrees C) to 113 degrees F (45 degrees C). Charging the battery at temperatures outside this range may cause severe damage to the battery or reduce battery life expectancy.
- Do not place the battery in or near fire, or in direct sunlight. Heating the battery can damage the safety circuitry, which can cause additional heating, rupture or ignition of the battery.
- When charging the battery, either use a specified battery charger or otherwise ensure the battery charging conditions specified by Freedom Scientific are met. These are: (Model #SB-123A0F-11)(Input 100 – 250V ~ 47 – 63Hz 0.8A)(Output 12V – 3.0A)
- Immediately discontinue use of the battery if, while using, charging or storing the battery, the battery emits an unusual smell, feels hot, changes color or shape, or appears abnormal in any other way.
- Contact Freedom Scientific if any of these problems are observed.
Note: Freedom Scientific assumes no liability for problems that occur when the safety precautions and warnings listed above are not followed.
Protecting Your Hearing
Avoid using headphones/earphones in noisy environments where you are likely to increase the volume. Using headphones/earphones at high volumes can transmit loud, high frequencies that cause hearing damage.
To prevent listening fatigue, rest the ears in silence after long sessions with headphones.
If you experience a ringing in your ears, reduce the volume or discontinue use, and if ringing persists, consult a physician.