Features:
1)Over charge protection
2)Over discharge protection
3)Over current protection
4)Over heat protection
5)Short circuit protection
Specification:
Battery Type: Lifepo
Norminal Voltage: 3.2V
Size: as the picture shows
Constant discharge current: 100A~250A
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.
UART:
1-Can be connected with PC by USB to UART and set parameters.
2-Bluetooth function.
3-For windows system only
BMS touchable screen: (optional)
There are connection methods for touchable screen, high strings of bms above 10s with touchable screen is recommended.
UART: (optional)
1-Can be connected with PC by USB to UART and set parameters.
2-Bluetooth function.
3-For windows system only
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.
Product activation introduction:
For our smart bms,when first use,need to activate first,then B- P- can be conductive,voltage from P- can be same from B-, then BMS can work well.
Method ①: there is an activation switch on the board and click the button.
Method ②: Press thebuttonon the bluetooth module to activate the bms directly.
Method ③: Charge activation, B-line must be connected to the total negative pole of the battery pack when
Package Include: (optional)
1*4S12V smart BMS board
1*Cable
1*NTC Temperature Sensor
or
1*UART Cable
or
LCD Touch Screen
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.