注意：请检查充电器的输出电压 (output) 是 5V 1A（最多 5V 2A）才使用。太高的电压会导致电池损坏而且会让保修失效。

NOTE: Please check that the output of the charger is 5V 1A (maximum 5V 2A) before use. Current which is over the limit can cause battery damage and void the warranty.