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eBay 12S 48V 100A-250A Li-ion 3.7V Smart BMS Battery Pack w/Balance +Bluetooth Module 40.08 USD 42.19 USD 1.99 USD 5% off USB 6x18650 Battery Case LCD Display Power Bank DIY Kit Charger Box Cell Phone 13.07 USD 13.76 USD Free shipping 5% off BMS 8S 24V Lifepo4 40A 50A 60A 80A 100A Battery Pack Common Port with Balance 13.81 USD 14.54 USD Free shipping 5% off US JBD Smart BMS 4-8S LiFePo4 Li-Ion Battery Active Balance Board with Bluetooth 116.17 USD Free shipping 36V 42V Lithium Battery Charger w/Adapter Kit For Xiaomi Electric Scooter E-Bike 20.51 USD 21.59 USD 0.99 USD 5% off USB 6pcs18650 Battery Case LCD Display Power Bank DIY Kit Charger Box for Phone 6.64 USD 6.99 USD 1.99 USD 5% off JBD 10S-17S 20A-80A Li-ion Smart BMS Same Port w/ Balance 36V 48V 60V Bluetooth 33.91 USD 35.69 USD Free shipping 5% off LTO 5S 12V 10A--100A BMS PCB Battery Management System Common port w/Balance 36.83 USD 38.77 USD 2.99 USD 5% off DIY Li-ion Battery Pack Kits Box Holder for 12 pcs 18650 Power Supply Solderless 6.64 USD 6.99 USD 0.99 USD 5% off JBD SMART BMS 6S-21S 20A-200A 24V-72V Li-ion Battery Balance Bluetooth/UART Port 43.22 USD 45.49 USD Free shipping 5% off 7s 24V 30A-150A BMS Li-ION Battery Protection Board w/Balancer +Bluetooth Module 26.15 USD 27.53 USD Free shipping 5% off LiFePO4/Li-ion/LTO 4S~13S 1A Smart BMS Battery Active Balancer +Bluetooth Module 11.2 USD 11.79 USD Free shipping 5% off Product Description 14S 48V 30A-250A Li-ion 3.7V Smart BMS Battery Pack w/ Balance +Bluetooth Module Feature: 1)Over charge protection 2)Over discharge protection 3)Over current protection 4)Over heat protection 5)Short circuit protection Specification: Battery Type：Lii-ion Norminal Voltage：3.7V Size：as the picture shows Constant discharge current：30A100A Constant charge current：15A-50A Colour:black Material:metal Bluetooth module: specification: Product name:Bluetooth module Color: as shown Material: Plastic + Metal Bluetooth module : available connect with Android and IOS App and can review the battery status in real time by mobile phone. The package includes: 1*14S 48V smart BMS 1*Cable 1*NTC Temperature Sensor Activate BMS: Method 1: Press the button on the bluetooth module or power display board. Method 2: Use the conventional charger to activate it by charging. Notice: The charging voltage is more than 2~3V voltage than the battery pack to charge. Please contact customer service if none of the above methods have been activated. FAQ Q: How do I know what material OR type my battery is ? A: Please look the battery body,if the normal voltage of your battery shows 3.2V,the battery is LiFePo4.If the normal voltage of your battery shows 3.6V or 3.7V, the battery is Li-ion or Li-polymer battery, You can also ask battery manufacturer for the material of battery. Q: Is this BMS suit for my battery? A: This BMS suit your battery or not depends on below 2 points: How many series you cell is in your battery pack? The BMS you buy must be same series as your battery pack. What material your battery is? Only the LiFePo4 battery has different electric parameter from other battery, so if you need buy the BMS for LiFePo4, Please let us know firstly. Q: What is the Common port and Separate port? what is the difference? A: We take 13S 48V16A BMS as example: Common port 16A means your charge cathode and discharge cathode are connected in the same point end (our P-), charge cathode and discharge cathode are used in the common connection port, so the charge current and discharge current are same as 16A. Separate port is separately connected by charge cathode (our C-) and discharge cathode (our P-), so the charge current and discharge current are different, discharge current is 16A, charge current is 8A. Q: What is the balance function?Do we need cell balance or not? A: The working principle and function are as followings: When your one cell voltage was reached balance voltage(Li-ion 4.18V, LifePo4 3.6V), that cell balance start work, balance resistance starts discharge with 35mA, that cell was in both charging and discharging status, and other cells were not reached balance voltage(Li-ion 4.18V, Life Po43.6V), so they are only in charging status, when the fast cell voltage was reached overcharge voltage (Li-ion 4.25V, Life Po4 3.75V),BMS starts off power protection, all the cells are stop charging, this process will enable your battery charging in balance current, and your battery voltage are in balance status. However, if your cell voltage difference are in a big range, The equilibrium effect is almost zero,The solution is to replace cells with large voltage gaps. Q: The relationship between battery capacity(AH or mAH) and BMS current(A)? A:There is no direct relationship between battery capacity and BMS current, big capacity doesn't mean big current, but rely on continue current, that is to say if your engine is powerful, you should choose high current of BMS, it is not relied on battery capacity. Q: What type of charger should i choose? A: Lithium battery must choose specific charger, don't use charger for leadacid battery, for leadacid charger may have MOS with high pressure breakdown protection, which will not protect of BMS over charge. LiFePo4 battery charger voltage = number of battery strings X 3.6V, while Li-ion battery charger voltage = number of battery strings X 4.2V. Q: What current BMS should I choose ? A: Take 10S 36V as example: What current BMS you choose is depend on your E-bicycle motor power and current limitation of controller,eg.16A for 350W and below, 25A for 500W and below, 35A for 800W and below, 60A for 1000W and below, over 1200W are contact with our service specialist for suggestion, continue current shall be higher than current limitation in controller. Q: Do you have Minimum Order Requirement (MOQ)? A: No, we don't have MOQ. different customer have different requirement ,we can provide various capacity and size as per your requirements, also ODM / OEM is welcome. Q: How to contact for BMS? A: Please send messages at below or E-mail us and we are always glad to help you with BMS. About Us Payment Shipping Returns Contact Us 1.We are happy to exchange positive feedbacks. 2.Please leave us all positive feedbacks and all "5 Star" ratings, we will do the same to you. 3.Please do not leave us any negative or neutral feedbacks before contacting us to solve the problem. (It won't help you solve the problem any faster by leaving negative feedbacks, only by contacting our professional customer support can help you solve the problems. 1. We accept payment via Paypal only. 2. Payment must be made within 7 days, Non-payment may result in an UPI (Unpaid Item). 3. After the items are mailed the buyer want to change the color and size, we can not accept. 4. If you have bought multiple items from me, you can send me one payment for all the items instead of paying for them individually. When you click the Pay Now button, eBay will automatically determine if there are other items you have won or purchased from me and will combine them for your review. 1.We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay. 2.Items will be shipped within 10-15 business day when we received payment. 3.Delivery time depends on destination and other factors; 4.International buyers please note: 1>.Import duties, taxes and charges are not included in the item price or shipping charges. 2>.Please check with your country's customs office to determine what these additional costs will be prior to buying. 1. We stand behind every product we sell. If you're not pleased with your purchase, please kindly contact our customer service representatives via email or ebay "Contact seller" 2. Buyer is responsible for return costs 30 days replacement or money back as you like. Buy with confidence! 3. If you are not satisfied with the item you received, please contact us and then return it within 30 days.You will get a replacement or money back after item returned to our warehouse. 4. If item is defective, you can contact us and send it back to us. We will send a new one to you after receiving the defective item. But you have to pay the extra shipping fee. 1.If you are satisfied with our goods, please give us a positive feedback, thank you for your assistance. 2.If you are not satisfied, please kindly let us know. Your constructive advice will be our motion to revise and improve, thank you for your understanding. 3.You could contact us via ebay message. 4.We will reply you within 24 hours. About Us 1.We are happy to exchange positive feedbacks. 2.Please leave us all positive feedbacks and all "5 Star" ratings, we will do the same to you. 3.Please do not leave us any negative or neutral feedbacks before contacting us to solve the problem. (It won't help you solve the problem any faster by leaving negative feedbacks, only by contacting our professional customer support can help you solve the problems. Payment 1. We accept payment via Paypal only. 2. Payment must be made within 7 days, Non-payment may result in an UPI (Unpaid Item). 3. After the items are mailed the buyer want to change the color and size, we can not accept. 4. If you have bought multiple items from me, you can send me one payment for all the items instead of paying for them individually. When you click the Pay Now button, eBay will automatically determine if there are other items you have won or purchased from me and will combine them for your review. Shipping 1.We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay. 2.Items will be shipped within 10-15 business day when we received payment. 3.Delivery time depends on destination and other factors; 4.International buyers please note: 1>.Import duties, taxes and charges are not included in the item price or shipping charges. 2>.Please check with your country's customs office to determine what these additional costs will be prior to buying. Returns 1. We stand behind every product we sell. If you're not pleased with your purchase, please kindly contact our customer service representatives via email or ebay "Contact seller" 2. Buyer is responsible for return costs 30 days replacement or money back as you like. Buy with confidence! 3. If you are not satisfied with the item you received, please contact us and then return it within 30 days.You will get a replacement or money back after item returned to our warehouse. 4. If item is defective, you can contact us and send it back to us. We will send a new one to you after receiving the defective item. But you have to pay the extra shipping fee. Contact Us 1.If you are satisfied with our goods, please give us a positive feedback, thank you for your assistance. 2.If you are not satisfied, please kindly let us know. Your constructive advice will be our motion to revise and improve, thank you for your understanding. 3.You could contact us via ebay message. 4.We will reply you within 24 hours. powered by

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