<div class="detailmodule_dynamic"><kse:widget data-widget-type="customText" id="1005000004119628" type="relation"></kse:widget></div><div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><div><br/><br/></div><p><strong>BMS 5S 18V 21V 20A Li-ion Lithium Battery Charger Protection Board Battery Charging Protection Board BMS Module For Power Tools</strong></p><p><strong>Features:</strong></p><p>The protection board is for 5 series Li-ion batteries, mainly used for electric power tools.</p><p>It uses special IC for 5S lithium batteries as processor to detect real-time voltage, charge and discharge current and ambient temperature of each battery.</p><p>Stable various protective functions for charging and discharging, such as overcharge protection, over-discharge protection and short circuit protection.</p><p>Low power consumption,the working current is about 25uA and quiescent current is about 6uA.</p><p>Choosing the correct protection board and applying it appropriately is vital to the longevity your batteries.</p><p><strong>Specifications:</strong></p><div><br/></div><table style="border-collapse:collapse;text-align:start" border="1" align="start"><tbody><tr><td rowspan="2"><p>Voltage</p></td><td><p>Charge Voltage</p></td><td><p>19/21V  </p></td></tr><tr><td><p>Single Cell Charge Voltage</p></td><td><p>3.8/4.25V</p></td></tr><tr><td><p>Current</p></td><td><p>Continuous Discharge Current</p></td><td><p>8-20A</p></td></tr><tr><td rowspan="4"><p>Overcharge Protection</p></td><td><p>Overcharge Single Cell Detection Voltage</p></td><td><p>3.85-4.25V</p></td></tr><tr><td><p>Overcharge Protection Delay</p></td><td><p>1S</p></td></tr><tr><td><p>Overcharge Single Cell Recovery Voltage</p></td><td><p>3.75-4.13V</p></td></tr><tr><td><p>Overcharge Protection Release Delay</p></td><td><p>1mS</p></td></tr><tr><td rowspan="4"><p>Over-discharge Protection</p></td><td><p>Over-discharge Single Cell Detection Voltage</p></td><td><p>2-2.8V</p></td></tr><tr><td><p>Over-discharge Protection Delay</p></td><td><p>1S</p></td></tr><tr><td><p>Over-discharge Single Cell Recovery Voltage</p></td><td><p>2.5-3.0V</p></td></tr><tr><td><p>Over-discharge Protection Release Delay</p></td><td><p>100±20mS</p></td></tr><tr><td rowspan="4"><p>Over-current Protection</p></td><td><p>Over-current Detection Voltage</p></td><td><p>0.1-0.4V</p></td></tr><tr><td><p>Over-current Detection Current</p></td><td><p>30±5A</p></td></tr><tr><td><p>Over-current Detection Delay</p></td><td><p>1S</p></td></tr><tr><td><p>Recovery State</p></td><td><p>Auto</p></td></tr><tr><td rowspan="5"><p>Short Circuit Protection</p></td><td><p>Support</p></td><td><p>Yes</p></td></tr><tr><td><p>Short Circuit Detection Delay</p></td><td><p>250uS</p></td></tr><tr><td><p>Short Circuit Release Delay</p></td><td><p>1S</p></td></tr><tr><td><p>Short Circuit Detection Voltage</p></td><td><p>0.8V</p></td></tr><tr><td><p>Recovery State</p></td><td><p>Auto after Disconnect Load</p></td></tr><tr><td rowspan="2"><p>Over Temperature Protection</p></td><td><p>Protection Temperature</p></td><td><p>70±5°</p></td></tr><tr><td><p>Recovery Temperature</p></td><td><p>55±5°</p></td></tr><tr><td rowspan="2"><p>Power Consumption</p></td><td><p>Working State</p></td><td><p>25uA (25°)</p></td></tr><tr><td><p>Stand-by State</p></td><td><p>6uA(25°)</p></td></tr><tr><td><p>Internal Resistance</p></td><td><p>Discharge Main Circuit Internal Resistance</p></td><td><p>30±5mΩ</p></td></tr><tr><td rowspan="2"><p>Temperature</p></td><td><p>Operating Temperature</p></td><td><p> -40°-85° RH≤75%</p></td></tr><tr><td><p>Store Temperature</p></td><td><p> -40°-125° RH≤75%</p></td></tr><tr><td><p>Size</p></td><td><p>Length*Width</p></td><td><p>46*40mm/1.81*1.57&quot;</p></td></tr></tbody></table><div><br/></div><p><strong>Package Includes:</strong></p><p>1 x Protection Board<br/><br/></p></div></div><p><br/></p>