iPad的电池寿命长达10小时左右。
像稍大点的17英寸的MacBook Pro, 15英寸的将安置一个新的锂电池，将使电池寿命长达7个小时，是大多数充电笔记本电脑使用时间的3倍。
Like the larger 17-inch MacBook Pro, the 15-inch will also feature a new lithium battery that gets up to seven hours of battery life and three times the recharges of most laptops.
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