AMOI Electronics Co. Ltd. A320A Manual Do Utilizador

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If left unused, a fully charged battery will discharge itself over 
time. 
 
Use only approved batteries; and recharge your battery only with 
approved chargers. When a charger is not in use, disconnect it from 
the power source. Do not leave the battery connected to a charger 
for more than a week, since overcharging may shorten its life. 
 
Extreme temperatures will affect the charging capacity of your 
battery: it may require cooling or warming first.    Do not leave the 
battery in hot or cold places, such as in a car in summer or winter 
conditions, as you will reduce the capacity and lifetime of the 
battery. Always try to keep the battery at room temperature. A 
phone with a hot or cold battery may temporarily not work, even 
when the battery is fully charged. Li-ion batteries are particularly 
affected by temperatures below 0 °C (32 °F). 
 
Do not short-circuit the battery. Accidental short-circuiting can 
occur when a metallic object (coin, clip or pen) causes a direct 
connection between the + and - terminals of the battery (metal 
strips on the back of the battery), for example when you carry a 
spare battery in a pocket or bag. Short-circuiting the terminals may 
damage the battery or the object causing the short-circuit. 
 
Dispose of used batteries in accordance with local regulations. 
Always recycle. Do not dispose of batteries in a fire.