Verykool i604 - Manual (Page 59)

Tips for Battery
§ Placing the battery in hot or cold places, such as in a closed
car in summer or winter, will reduce the capacity and lifetime
of the battery.
§ Do not let the metal contacts on the battery touch another
metal contact. It could short-circuit and damage the battery.
Use the battery only for its intended purpose.
§ Do not disassemble or modify the battery.
§ Do not clean the battery with water or any other organic
solvent.
§ Always keep the battery dry.
§ The battery can be charged and discharged many times but
it will wear out as last. When the talk and standby time is
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