When buying a battery make sure they are rechargeable, have high mAh (energy capacity), and can output at least an amp at any time.
要买可充电的那种，有高mAh(能量的容量)，能在任何时候至少可以输出1安培。
When buying a battery make sure they are rechargeable, have high mAh (energy capacity), and can output at least an amp at any time.
要买可充电的那种，有高mAh(能量的容量)，能在任何时候至少可以输出1安培。
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