<div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><p>Features:<br/>1.Ultra-narrow design saves space: only 7mm wide, perfectly utilizing the empty space on the side of the battery to make more space for other circuits<br/>2.Compatible with a variety of lithium batteries: for 3.7V lithium batteries, including 18650, 21700, 32700 and other common models<br/>3.Efficient and stable charging: input voltage of 5-6V, Type-C interface design ensures fast and stable charging experience<br/>4.Intelligent charging indicator: red light indicates charging in progress, green light indicates full, which is convenient for users to know the charging status at any time<br/>5.Ideal DIY option: suitable for DIY enthusiasts to modify powerful electric mosquito swatters and other projects, providing flexible battery management solutions</p><p>Parameter:<br/>Product name: 3.7 4.2V ultra-narrow charging module<br/>Input voltage: DC 5-6V<br/>Interface: Type C interface<br/>Applicable batteries: various types of 3.7V lithium batteries, including 18650, 21700, 32700, etc.<br/>Charging indicator: red light<br/>Full indicator: green light, full voltage 4.2V</p><p>Description:<br/>The product is suitable for everyone in the DIY to do battery charging management, the module volume is ultra-narrow only 7 mm, the module was designed at the beginning of the modification of the powerful electric mosquito beat can be 18650 lithium batteries on the side of the empty space on the use of other circuits to make more space.</p><p>Note: the charging module will be hot when charging, is a normal phenomenon (refer to the cell phone charging hot)</p><p>Package include:<br/>Module x1<br/><br/></p></div></div><p><br/></p>