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DescriptionDALY Smart BMS 20S 72V Li-ion 40A/60A/100A BT BMS Common Port with Balance NCT
Color: red
Size: as shown in the picture
Applicable Battery Strings and Voltage: 20S 72V
Applicable battery type: 3.7V Li-ionBattery
Discharge Current: 40A, 60A, 100A
Discharge protection current: 60A, 90A, 150A
Charging current: 40A, 60A, 100A
Charging overcurrent protection: 60A, 90A, 150A
Passive equalization: 100±30Ma
Operating Temperature: -40℃-85℃
Package Included:
1*DALY K-shaped SMART BMS
1*manual
2*B- P- Link wire
1*Bluetooth Module
1*Cable
1*NTC Temperature Sensor
FAQ
Q: How do Iknowwhat materialOR typemy battery is ?
A: Please look the battery body,if the normal voltage of your battery shows 3.2V,thebattery isLiFePo4.If the normal voltage of your battery shows 3.6V or 3.7V, the battery is Li-ion or Li-polymer battery,Youcan also ask battery manufacturer for the material of battery.
Q:IsthisBMSsuitfor my battery?
A: This BMS suit your battery or not depends on below 2points:
How many series you cell is in your batterypack? The BMS you buy must be same series as your battery pack.
What materialyour 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 theCommon port andSeparate port? what is the difference?
A:We take 13S48V16A BMS asexample:
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-ion4.18V, 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 cellswere 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-ion4.25V, Life Po43.75V),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 abig range, The equilibrium effect is almost zero,The solution is to replace cells with large voltage gaps.
Q: The relationship betweenbattery capacity(AH or mAH)and BMS current(A)?
A:Thereis nodirect relationship between battery capacity and BMS current, big capacity doesn't meanbig current, but rely on continue current, that is to say if yourengine is powerful, you should choose high current of BMS, it is not relied on battery capacity.
Q: What type of charger shouldichoose?
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 chargervoltage= numberof battery stringsX3.6V, while Li-ion battery charger voltage= numberof battery stringsX4.2V.
Q: What current BMS should Ichoose ?
A: Take 10S36V 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 for1000W and below,over 1200W are contact with our service specialist forsuggestion,continue current shall be higher than current limitation in controller.
Q: How to contact for BMS?
A: Please send messages at below or E-mail usand we are always glad to help you with BMS.
We accept Credit Card, Debit Card and eCheck payments through should be done within 7 days after the end of the sale. Otherwise Unpaid Item Dispute will be filed with will ship out the item after comfirming the payment, appreciate your be sure your shipping address is correct before make a paymentcause weship items to your PayPal confirmed address only.
100% Customer satisfaction is our top style=\"list-style-type: disc;\">
We back our products with a 30-DAY Return GUARANTEE.Customers should inspect item(s) and notify us within 30 days of any problems.
- If you receive an incorrect,damaged,defective,or item not as described,please feel free to contact us for a partial/full refund or resend.
- We will reply you within 24 hours.(except weekends and style=\"list-style-type: disc;\">
We accept Credit Card, Debit Card and eCheck payments through should be done within 7 days after the end of the sale. Otherwise Unpaid Item Dispute will be filed with will ship out the item after comfirming the payment, appreciate your be sure your shipping address is correct before make a paymentcause weship items to your PayPal confirmed address only.
Returns
100% Customer satisfaction is our top style=\"list-style-type: disc;\">
We back our products with a 30-DAY Return GUARANTEE.Customers should inspect item(s) and notify us within 30 days of any problems.
- If you receive an incorrect,damaged,defective,or item not as described,please feel free to contact us for a partial/full refund or resend.
Contact Us
- We will reply you within 24 hours.(except weekends and holidays)
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