Check the listing for details. BMS 2-4S/8S Balance Board Lithium Battery Active Equalizer Energy Transfer Board. Condition: New. Listed at 3.35 USD. BMS 2-4S/8S Balance Board Lithium Battery Active Equalizer Energy Transfer BoardProduct Image: Product Description: Principle of balance: The module is adjacent to the differential voltage balance, and the adjacent battery voltage difference reaches 0.1V or more. The internal trigger balance is working until the adjacent battery voltage difference stops within 0.03V. There is an adjacent differential voltage when charging and discharging on The battery pack. Trigger balance, the battery pack voltage error will be pulled back to the ideal value, reducing battery maintenance costs. Balanced board features: High-precision energy transfer equalization, exclusive balanced IC, high current 1.2A energy transfer battery voltage balancer, significantly balancing battery voltage, improving overall battery pack efficiency Technical Parameters: Operating voltage range: 2.0V-4.5V, Li-ion/Lipo/Lifepo4/18650 lithium battery universal. Balance current: Adjacent voltage difference is 0.1V or more (current is about 0.5-0.7A); Adjacent voltage difference is above 0.2V (maximum balance current is 1.2A); The smaller the differential voltage , the smaller the balance current. Wiring: FeedbackWarrantyShipmentFeedbackWe appreciate your feedback very much. As it will motivate us do better. If you have any questions with our goods or service, Please kindly contact us firstly before leaving negative feedback. Thank you in advance Warranty1. All merchandise will be carefully test before shipping. We will try our best to avoid any quality problem. 2. We promise warranty for quality in one year and we will repair it free of charge. The returning shipping should be paid by customer. 3. If you are not satisfied with the product, Please contact us. We'll provide you a satisfying solution.Shipment1.Normmly we will send the goods within 1-3 working days after your payment is verified . 2.Please check if the goods are in good condition and sign before the delivery man leaves.If you find the product is lost or damaged on the way. Please take photo and let the delivery men confirm it. Then we will help you let the shipping company compensate you.On Mar 25, 2024 at 02:36:10 PDT, seller added the following information: