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eBay US – 12.6V 3S 40A BMS For 18650 Li-ion Battery Protection Board with Balance PCB 8.99 USD 0.5 USD BMS 14S 48V 30A-100A Li-ion 3.7V Battery Smart BMS w/ Balance + Bluetooth Module 35.52 USD Free shipping JBD Smart BMS Lifepo4 Battery Protector Communication Bluetooth Module For Phone 10.08 USD 10.61 USD 0.99 USD 5% off DIY Li-ion Battery Pack Kits Box Holder for 16*18650 Wireless Power Charger Case 17.47 USD 18.39 USD 0.99 USD 5% off BMS Same Port w/ Balancer 36V 48V 60V Bluetooth JBD 10S-17S 40A Li-ion Smart ESB 37.33 USD 39.3 USD Free shipping 5% off 12S 48V 200A Li-ion 3.7V Smart BMS Battery Pack with Balance + Bluetooth Module 40.08 USD 42.19 USD Free shipping 5% off DIY Li-ion Battery Pack Sets Box Holder for 12pcs 18650 Power Supply Solderless 6.64 USD 6.99 USD Free shipping 5% off JBD 10S-17S 50A Li-ion Smart BMS Same Port with Balance 36V 48V 60V Bluetooth 36.86 USD 38.8 USD 2.99 USD 5% off 12S 48V 120A Li-ion 3.7V Smart BMS Common Port with Balance + Bluetooth Module 95.0 USD 100.0 USD Free shipping 5% off US – Li-Ion Battery Smart BMS 14S 48V 60A 80A Common Port w/ Balance + Bluetooth 69.94 USD 73.62 USD Free shipping 5% off JBD 16S 48V 100A Smart BMS LiFePo4 with Balancer + Bluetooth UART 485 71.81 USD 75.59 USD 3.99 USD 5% off JBD Smart BMS 6S-21S 100A 150A 200A Li-Ion Battery Active Balance w/Bluetooth US 106.73 USD 112.35 USD Free shipping 5% off Product Description 4S 12V 200A Li-ion Smart BMS Battery Protection Board Common Port w/ Bluetooth Lifepo4 4S 12V 200A smart BMS Feature： 1)Over charge protection 2)Over discharge protection 3)Over current protection 4)Over heat protection 5)Short circuit protection Specification： Name：Lifepo4 bms 4s 12v 100a smart BMS common port with balance Battery Type：Lifepo4 Norminal Voltage：3.2V Size：as the picture shows Constant discharge current： 200A Constant charge current：100A 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*4S12V 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: What is your term of payment? A: PayPal, T/T, L/C,Western Union and so on, everything can be talk. 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. powered by
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