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eBay Feature Products 6S 2.7V 0.7A Balance Equalization Super Farad Capacitor Charge Protection Board Features 1. This protection board is a passive equalization, used for 1-6 series farad capacitor, lithium titanate battery; 2. This protection board is suitable for 2.7V lithium titanate battery and 2.7V farad capacitor, other types of batteries are not suitable; 3. Equalization current about 0.7A, protection voltage default 2.7V, the lowest can be changed to 2.5V, the highest recommended not to exceed 3V; 4. there is an indicator to show the working status of the protection board, when the voltage of a single unit exceeds 2.7V, the corresponding indicator will light up, and the corresponding discharge circuit will start to discharge, when the corresponding single unit voltage drops below 2.7V, the indicator will go out, and the circuit will stop discharging; 5. Capacitor/battery pack charging and discharging does not directly pass through the protection board, so there is no limitation on charging and discharging currents, and it can be used in applications with extremely high discharging currents. Specification Equalization method: passive equalization Equalization voltage: 2.7V Equalization current: 0.7A Static current: 60uA Charging current: unlimited Discharge current: unlimited Operating temperature: -20-100℃ Protection board size: 76mmX46mm Cable length: about 30cm Wiring instructions: Wiring please refer to the wiring diagram, starting from the negative terminal of the battery pack, the first line marked with “-” on the protection board is connected to the negative terminal of the first battery, the second line is connected to the connecting piece of the first battery and the second battery, and so on, until the positive terminal of the whole battery pack is connected. For multiple plates in series, please connect the seventh wire of the upper plate and the first wire of the lower plate to the connecting tabs of the sixth and seventh batteries. Voltage change instructions: If you need to change the protection voltage, please search “Voltage divider online calculator”, input voltage as the voltage you want to change, input other parameters according to the following chart, the calculated resistance value in kilo-ohm (max. can’t be more than 50 kilo-ohm, otherwise we need to change the shunt resistor Rb to 110 kilo-ohm). Voltage divider resistors are 2 per circuit, 6 circuits totaling 12, the board labeled 18K for the series resistor, generally only need to change this resistor. Reference voltage-resistance value: 2.5V-0 ohm 2.6V-9.1k ohm 2.65V-13k ohm 2.7V-18 kOhm 2.75V-22 kilohms 2.8V-27 kOhm Frequently Asked Questions: The use of the protection board requires buyers to have at least some knowledge of the circuit, please read the product description carefully: 1. What kind of batteries/capacitors can be protected by this protection board, and what is the protection voltage and equalization current? What is the charging and discharging voltage and current of the protection board? This protection board is suitable for 2.7V lithium titanate battery and 2.7V farad capacitor, other types of batteries are not suitable. Equalization current is about 0.7A, the default protection voltage is 2.7V, the minimum can be changed to 2.5V, the maximum recommended not to exceed 3V (the higher the voltage, the higher the discharge current, more than the rated power of the discharge resistor will burn out the discharge resistor). Capacitor/battery pack charging/discharging does not directly pass through the protection board, so there is no limit to the charging/discharging current, and it can be used in applications with very high discharging currents. The charging voltage is determined according to the number of strings, and the maximum charging voltage does not exceed (number of strings*2.7)V. 2. How many strings of batteries/capacitors does this protection board apply to? The single protection plate can be used for any 1-6 strings of batteries/capacitors, if the number of strings is less than 6, connect from the negative pole according to the wiring diagram, and leave the extra wires empty. Multiple protection boards can be connected in series to protect more strings (e.g. 2 protection boards can be connected in series to protect up to 12 strings). 3. Does this board have over-voltage and under-voltage protection, and is there an indicator light? The board has only limited overvoltage protection, not undervoltage protection. There is an indicator to show the working status of the board. When the voltage of a single unit exceeds 2.7V, the corresponding indicator will light up and the corresponding discharge circuit will start discharging; when the corresponding voltage of a single unit drops below 2.7V, the indicator will turn off and the circuit will stop discharging. 4. Does this protection board have the function of equalizing voltage? This protection board is passive equalization, only when the voltage exceeds the protection voltage will the discharge circuit start, so if you want to equalize the voltage, you need to set the charging voltage slightly higher than the protection voltage in order to start the full equalization, the following operation is a manual operation for the capacitor/battery packs that have too large a difference in voltage, and there is no need to do it if the difference is not too large. For example: 6 strings of 2.7V capacitor bank, charging voltage is set to 16.5V (higher than the total protection voltage of 16.2V about 0.3V can be), charging current is set to 0.5A (can not be more than 0.5A), full and then continue to charge for 2-4 hours can be 5. The 0.7A discharge current of the protection board is a bit small, can it be increased? Yes, the power resistor of the protection board has a hole reserved for welding, and can be connected in parallel with the color ring resistor to increase the current. After increasing the discharge current, the working power of the whole protection board will increase, which may damage the protection board or capacitor or cause fire. List 1 x Protection board 1 x Cable Shipping Policy Item Location Payment Mathord Returns Policy About Feedback Shipping Policy 1. We Ship to Worldwide 2. We ship your orders within 1-2 business days after the payment cleared. 3. Item shipped from China via china Post Airmail, reach most of the countries within 2 to 4 weeks. 4. Delivery time depends on destination and other factors, it may takes up to 20 days. If you don’t receive the item after 30 days,please keep in touch with us, we’ll investigate and solve the delivery problem. 5. Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer’s responsibility. Please check with your country’s customs office to determine what these additional costs will be prior to bidding or buying. Item Location ShenZhen Payment Mathord 1. We accept PAYPAL only. 2. Payment must be made within 7 days of auction closing (Unpaid dispute will automatically open when item is not paid in 7 days). 3. PLEASE NOTE: SHIPPING&HANDING DOES NOT INCLUDE DUTIES, LOCATL TAXES OR ANY OTHER IMPORTATION FEES. 4. Please list your special requests (color, packages, value of declaration, etc.) in the EBAY NOTES SECTION when you make payment Returns Policy 1. Customer satisfaction is our top goal. All products are quality checked. They are new and in good condition when shipped to our customers. If product is defective or damage upon arrival, or wrong product shipped, please keep in touch with us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer. 2. Please keep in touch with us first if you have anyproblems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner. 3. We appreciate your Positive Feedback, and will do the same in return. PLEASE DO NOT leave negative feedback without first communication with us. Please allow max 24 HOURS for us to respond About Feedback We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you keep in touch with us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.It is impossible to address issues if we do not know about them!
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