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Precautions
On using the battery pack
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Never leave the battery pack in temperatures above 60°C (140°F), such as in a car parked in the sun or under direct sunlight.
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Battery life is shorter in a cold environment. This is due to decreased battery efficiency at low temperatures.
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Charge the batteries at temperatures between 10°C to 30°C (18°F to 86°F). Lower temperatures require a longer charging time.
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While the battery is in use or being discharged, the battery pack heats up. This is normal and is not cause for concern.
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Keep the battery pack away from all sources of heat.
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Keep the battery pack dry.
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Do not open or try to disassemble the battery pack.
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Do not expose the battery pack to any mechanical shock.
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If you are not using the computer for an extended period of time, remove the battery pack from the computer to prevent damage
to the battery.
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If, after fully charging the battery pack, the battery power is still low, the battery pack may be reaching the end of its life and should
be replaced.
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You do not need to discharge the battery before recharging.
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If you have not used the battery pack for a considerable amount of time, recharge the battery.
On using headphones
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Road safety – Do not use headphones while driving, cycling, or operating any motorized vehicle. It may create a traffic hazard
and is illegal in some areas. It can also be potentially dangerous to play loud music while walking, especially at pedestrian
crossings.
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Preventing hearing damage – Avoid using headphones at high volume. Hearing experts advise against continuous, loud and
extended play. If you experience a ringing in your ears, reduce the volume or discontinue use.