id="stamped-main-widget" class="stamped-main-widget" data-widget-style="standard" data-product-id="6890403365046" data-name="7S 24V Lithium Battery 3.7V Power Protection Board 70A" data-url="https://www.electromannsa.com/af/products/7s-24v-lithium-battery-3-7v-power-protection-board-70a" data-image-url="//cdn.shopify.com/s/files/1/1030/0431/products/7s24v35AmpBMS_622e919e-98d5-40dc-a60e-39aeee172043_large.jpg%3Fv=1626868449" data-description="<div class="item_main_left"> <div id="magnifier"> <div id="main_image_container" class="main_small_box"> <div class="imgTagWrapperId"> <div class="item_share_box clearfix"> <div class="share_right"> <h2 class="share_icon" style="text-align: center;">7S 24V Lithium Battery 3.7V Power Protection Board with Temperature Protection Equalization Function, Overcurrent Protection - 70A (10004046)</h2> <div style="text-align: center;"><em><strong><span color="#ff0000" style="color: #ff0000;">BMS is for battery use, different strings are not compatible.</span></strong></em></div> <div style="text-align: center;"><em><strong><span color="#ff0000" style="color: #ff0000;">E.g: 13S BMS, can not be used for 10S battery, can only be used on 13S battery.</span></strong></em></div> <div><span><br></span></div> <div><strong>Description:</strong></div> <div> <div>Range: nominal voltage is 3.6V, 3.7V lithium battery (including 18650, 26650, polymer battery).</div> <div><br></div> <div>Function: Overcharge protection function, over discharge protection function, over current protection function, short circuit protection function, battery balance management function, temperature protection function.</div> <div><br></div> <div>Products: 7S or more adopts Zhongying integrated scheme circuit, and 7S or less adopts single-section cascade scheme circuit.</div> <div></div> <div> <div> <div><b>Charging</b></div> <div><br></div> <div>Charge current: Same as continuous current</div> <div>Charging voltage：29.75V</div> <div><br></div> <div><b>Over charge protection</b></div> <div><br></div> <div>Overcharge detection voltage：4.25V±0.05V</div> <div>Overcharge release voltage：4.15V±0.05V</div> <div>Overcharge protection delay：600uS</div> <div><br></div> <div><b>Over discharge protection</b></div> <div><br></div> <div>Over discharge protection voltage: 2.7V ± 0.1V</div> <div>Over discharge release voltage：3V±0.05V</div> <div>Over discharge detect delay：600uS</div> <div><br></div> <div><b>Balance</b></div> <div><br></div> <div>Balance detection voltage：4.18V</div> <div>Balanced release voltage：4.18V</div> <div>Balance current：35mA±5mA</div> <div><br></div> <div><b>Overcurrent protection</b></div> <div><br></div> <div>Instantaneous current: continuous current * 2.5</div> <div>Overcurrent detection delay：600uS</div> <div>Overcurrent detection voltage：100mV</div> <div>Overcurrent protection release condition: Disconnect load</div> <div><br></div> <div><b>Short circuit protection</b></div> <div><br></div> <div>Short circuit protection condition: External load short circuit</div> <div>Short circuit detection delay：600uS</div> <div>Short circuit protection release condition; Disconnect load</div> <div><br></div> <div><b>Temp Protection</b></div> <div><br></div> <div>Charging temperature: ≤65 ℃</div> <div>Discharge temperature: ≤65℃</div> <div>Remove temperature control protection: within working temperature</div> <div><br></div> <div><b>Inner resistance</b></div> <div><br></div> <div>Main circuit on-resistance：≤10mΩ</div> <div><br></div> <div><b>Self electricity consume</b></div> <div><br></div> <div>Working current：≤100uA</div> <div>Sleep current (when the battery is over-discharged)：≤20uA</div> <div><br></div> <div><b>Working Temp</b></div> <div><br></div> <div>temperature range：-20℃/+80℃</div> </div> <div> <div><br></div> <div><strong>Package Contents:</strong></div> <div><br></div> <div>1 x 7S 24V Lithium Battery 3.7V Power Protection Board 70A</div> </div> <div><br></div> <div> <p><strong>Use the queue of operations:</strong></p> <p><span>1. The cable starts from the black thin wire connecting B-, the second wire (the thin red wire) is connected to the positive pole of the first battery, and the positive pole of each battery is connected in turn until the last red wire is connected to B+;</span></p> <p><span>2. After connecting the cable, do not insert the plug directly into the BMS. Measure the voltage between each two adjacent metal terminals on the back of the plug. If the voltage of the terpolymer battery should be between 2.8V and 4.2V, the iron-lithium battery should be between 2.5V and 3.65V.</span></p> <p><span>3. After correct wiring queue and voltage confirmation, insert the BMS socket.</span></p> <p><span>4. The protective board B line (blue thick line) is connected to the negative pole of the battery pack.</span></p> <p><span>5. After the wiring is completed, measure whether the total voltage of the battery pack and the total voltage passing through the BMS are equal. If they are different, check again according to the above wiring queue.</span></p> <p><span>Tips:</span></p> <p>The battery pack protection board, which is a semi-finished product of electronic products, is a wearing part in case of wrong use.</p> <p>If you don't understand how to use it, please read the manual carefully or ask the customer service. Any wrong use will burn out the front-end sampling resistor. We will not accept such disputes of customer damage. Please do not buy if you mind.</p> </div> </div> </div> </div> </div> </div> </div> </div> </div> <div></div>" data-product-sku="7s-24v-lithium-battery-3-7v-power-protection-board-70a">