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We only accept items purchased from roymall.com. If you purchase from our local distributors or other retailers, you cannot return them on our side.Final sales items or free gifts are not acceptable for a return.To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.After receiving return instructions from us, please package up your returned items and drop your package at the local post office or another courier. We will process your return or exchange item within 3-5 working days after we receive it. The refund will be processed and credited automatically to your original method of payment.No returns or exchanges can be accepted if the product was custom produced, including custom size, custom
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Specifications:
Single Cell overcharge protect voltage: 4.23 - 4.28V
Single Cell overcharge rotect recover voltage: 4.08 - 4.18
Overcharge protect delay: 0.5 - 1.5S
Single Cell over-discharge protect voltage: 2.72 - 2.88V
Single Cell over-discharge rotect recover voltage: 2.9 - 3.1V
Overcharge protect current: 60A
Over-discharge protect current: 60A
Over-discharge protectdelay: 0.5 - 1.5S
Temperature protect: YES
Disconnect protect: YES
Shortage protect: YES
Shortage delay: 100 - 600μS
Shortage protect recover: YES
Charging current: 25A
Discharging current: 25A
Charging voltage : 12.6V for 3S BMS board, 16.8V for 4S BMS board, 21V for 5S BMS board
Tips:For questions about your order, place of delivery, product discount, taxation, delivery time, warranty, shipping, payment, exchange rate, and other questions unrelated to the product, please contact customer service.
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A part of the QA has been auto-translated.
0
Q:
The description states that there is temperature protection, but the wiring diagram does not show wiring for a thermister. How is the temperature protection wired?
The description states that there is temperature protection, but the wiring diagram does not show wiring for a thermister. How is the temperature protection wired?
There are two pads on the back labeled "NTC" which means "negative temperature coefficient". I suspect by wiring a NTC thermistor there you will get temperature protection.
There are two pads on the back labeled "NTC" which means "negative temperature coefficient". I suspect by wiring a NTC thermistor there you will get temperature protection.
You can add as many cells in parallel as you want, BUT THEY NEED TO BE CLOSELY MATCHED BY CAPACITY AND INTERNAL RESISTANCE. This is extremely important to protect the parallel cells.
You can add as many cells in parallel as you want, BUT THEY NEED TO BE CLOSELY MATCHED BY CAPACITY AND INTERNAL RESISTANCE. This is extremely important to protect the parallel cells.
There is no NTC on board - but connections for it below. So what kind of NTC should be connected. 10K or 100K? It would be great to have heat protection online!
There is no NTC on board - but connections for it below. So what kind of NTC should be connected. 10K or 100K? It would be great to have heat protection online!
NTCs similar to ID: 1686153 can be connected. https://www.banggood.com/6S-or-7S-30A-Li-ion-Lithium-Battery-Protection-Board-Lipo-BMS-18650-Cells-with-6cm-NTC-Temperature-for-Car- Washer-Electric-Drill-Vacuum-Cleaner-p-1686153.html
NTCs similar to ID: 1686153 can be connected. https://www.banggood.com/6S-or-7S-30A-Li-ion-Lithium-Battery-Protection-Board-Lipo-BMS-18650-Cells-with-6cm-NTC-Temperature-for-Car- Washer-Electric-Drill-Vacuum-Cleaner-p-1686153.html
Answered by The seller on 24/01/2022Helpful (0)
0
Q:
Should an NTC 10KOhm be used as a temperature sensor on the back? What resistance value should the NTC have?
Kommt als Temperatursensor ein NTC 10KOhm auf die Rückseite? Welchen Widerstands-Wert soll der NTC haben?
I want to connect 3S. You said, connect it like the 4S with the B2 removed.
When i do that, i get only 6.2V from a 3S pack. What's wrong? Is the BMS faulty?
I want to connect 3S. You said, connect it like the 4S with the B2 removed.
When i do that, i get only 6.2V from a 3S pack. What's wrong? Is the BMS faulty?
I’ve wired this board exactly as pictured with 5x18650 cells. Everything is soldered properly. I’ve left the power supply connected for a couple hours and when I disconnect the power supply, the battery board does not send power to my Bluetooth speaker. Please help!!
I’ve wired this board exactly as pictured with 5x18650 cells. Everything is soldered properly. I’ve left the power supply connected for a couple hours and when I disconnect the power supply, the battery board does not send power to my Bluetooth speaker. Please help!!