After the battery of a certain brand of mobile phone is fully charged, it can be used continuously for 3 days without interruption. If there are two such batteries, how many hours can it be used continuously after being fully charged?
某品牌手机电池完全充电后，可以连续不间断地使用3天，若有这样的两块电池，完全充电后，可以连续使用几个小时？
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">6 * 24</gadget>
<output>144</output>

<result>144</result>