<div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><p><span style="font-family:Comic Sans MS,cursive;"><span style="font-size:16px;"><strong>Battery voltage: </strong>3.7V Operating current: 300-900mA<br><strong>Battery power: </strong>7.4Wh Input voltage: 5v<br><strong>Static current: </strong>15nA Input current: 800mAh(±20%)<br><strong>Battery mAh: </strong>Polymer 2000mAh<br><strong>Battery usage time: </strong>about 8h for 1st speed fan, about 4.5h for 2nd speed fan, and about 3h for 3rd speed fan</span></span></p>
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