<div class="detailmodule_dynamic"><kse:widget data-widget-type="customText" id="1005000004384065" type="relation"></kse:widget></div><div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><div><br/>Product features:</div><div> </div><div>This product is a widely used and innovative module designed for multiple applications. It has been maturely applied in high-power power bank applications and has a charging mode of up and down voltage.</div><div> </div><div>Supports multiple series of lithium battery charging, allowing the battery to be charged regardless of whether the input voltage is higher, lower, or equal to the battery voltage.</div><div> </div><div>Built in fast charging input protocol, battery charging is divided into three stages: pre charging, constant current, and constant voltage process.</div><div> </div><div>Supports fast charging, can lure 9V/12V, 4.5V-15V wide voltage input, and supports 1-5 series battery charging.</div><div> </div><div>The charging voltage can be set through a resistor to support multiple series of lithium batteries</div><div> </div><div> </div><div> </div><div>Parameter Description:</div><div> </div><div>1: Small size, high power, 3A high current, maximum power of 18W (not exceeding this power).</div><div> </div><div>2: 4.5-15V power supply, can be used for voltage up and down charging of 1-4 series lithium ions/lithium polymers.</div><div> </div><div>3: Adaptive charging current adjustment, suitable for all USB interface charging.</div><div> </div><div>4: Built in fast charging protocol, can be configured with 9V or 12V input protocol.</div><div> </div><div>5: Intelligent pre charging, constant current, constant voltage, with short circuit protection.</div><div> </div><div>6: Automatically operates in boost or buck mode for charging based on input voltage and battery voltage changes.</div><div> </div><div>7: 3-color LED charging status indicator indicates charging, fully charged, and fast charging.</div><div> </div><div>8: Working environment temperature range: -20 ℃ to 85 ℃.</div><div> </div><div>9: Scope of use: Multi series lithium battery charging, high-power power bank modification, solar charging</div><div> </div><div>10: Multiple specifications:</div><div> </div><div>2 strings filled with 8.4V</div><div> </div><div>3 strings filled with 12.6V</div><div> </div><div>4 strings filled with 16.8V</div><div> </div><div> </div><div> </div><div>Usage:</div><div> </div><div>The module input supports either the Type-C interface or direct soldering, with a voltage of 4.5-15V. The battery can be a 1-5 series lithium battery or a lithium iron phosphate battery based on the resistance R1 and R2 settings. The battery should be equipped with a protective plate, which can automatically balance the voltage, which is even better. If fast charging is used for input, two strings can be set to 9V input, and more than three strings can be set to 12V input. Of course, it is also possible not to set it.</div><div> </div><div>Introduction to Other Charging Voltage Settings</div><div> </div><div>Due to the wide range of charging supported by the module, only a few common charging configurations are provided. If other charging configurations are needed, R1 and R2 resistors can be configured by oneself. The charging cutoff voltage can be calculated using the following formula.</div><div> </div><div> </div><div> </div><div>Notes:</div><div> </div><div>*Please do not reverse connect the battery. Connect the reverse burning plate.</div><div> </div><div>*Before connecting the battery, connect the charging head and test whether the charging light of the module displays normally.</div><div> </div><div>*The wire cannot be too thin, the charging current cannot keep up, and the wire must be soldered.</div><div> </div><div>*The battery must come with a protective plate.</div><div> </div><div>*When the module power is high, it will generate more heat. Pay attention to fan heating and do not use materials that are not easily heated to seal the module.</div><div> </div><div>Checklist:</div><div> </div><div>1X module</div><div> </div><div></div><p><br/></p></div></div><p><br/></p>