10S~24S 70A 100A 200A 300A Lithium Ion Lifepo4 LTO Battery Bms
Smart Battery Protection Board
Support :
10S -24S li-ion battery (30V-102V Lithium battery cell)
13S -24S lifePo4 battery (30V-88V Lithium iron phosphate battery
cell)
15S -24S LTO battery (30V-68V Lithium titanate battery cell)
The default is the li-ion parameters. when you phone connect BT ,
can click and set up lifePo4 / LTO parameters. default setting is
24S , if you use for other number of cells , change it in app .
Single cell voltage detection range 1V-4.6V. High precision
detection cell voltage error is less than 5MA
Charging current: 50A
Discharge current: 70A 100A 150A 200A 300A to choose
Balance current :200MA . Controlled balance mode, when the charging
is started, the voltage difference can be detected by the detected
voltage difference to be greater than the set value.
High-precision coulomb counter function temperature control
detection Hall speed measurement
BT connection : support for android & IOS phone
Support cells :Support Li-ion , Lipo , 18650, Lifepo4 , LTO and so
on
Voltage accuracy :Single cell voltage detection range (1.5-4.6V),
so support a variety of cell use, accuracy error within 3 mV
Drop wire protection :detect wire not weld well and cause the
voltage is wrong.balance wire drop cell protection
Overcharge protection: Connect to Bluetooth to set high-precision
detection voltage, single overcharge protection and total
voltage over-voltage protection
Over discharge protection : Connect Bluetooth to set up
high-precision detection voltage, single-cell over-discharge
protection and total voltage under-voltage protection
Short circuit protection: Can be connected to Bluetooth to set the
short circuit protection value, change to 0 is turn off short
circuit protection
Over-current protection: can be connected to Bluetooth to set up
the over-current protection value (maximum 300A)
Current detection: within the current range of the purchased
protection board
Temperature control protection: The protection board has built-in
balanced temperature control, power temperature, and can be
connected with 4 temperature controls to prevent high temperature
danger.
balance current: 200 mA, high voltage versus low voltage discharge
balance
Discharge current: refer to the current in the purchase selection
as the peak discharge current
Coulomb counter: compensation 1-24S battery connection between the
chip resistance is too long, causing the wire resistance to be too
large, the cell voltage is too large during the charging and
discharging, can not be used normally
Connection internal resistance: based on current to time scoring,
accurately calculate the remaining battery capacity and charging
current
RFQ
1.What is the common port and separate port? what is the
difference?
We take 13S 48V 15A BMS as an example, common port 15A 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 the same 15A.
while the separate port is separately connected by charge cathode
(C-) and discharge cathode (P-), so the charge current and
discharge current are different, discharge current 15A, charge
current 8A.
2.What is the balance function?
The working principle and function are as followings, when your one
cell voltage is upto alarm voltage(Li-ion upto 4.18V, LifePo4 upto
(3.6V), then the cell Balance starts to work, balance resistance
starts discharge with 35ma(when balance discharge starts to work,
BMS will starts a little heat up, which is the normal reflection),
the cell is in both charging and discharging status, and others
which are not reached to alarm voltage(Li-ion 4.18V, LifePo4
3.6V)are only in charging status, no discharging, when the fast
cell voltage is reached to alarm voltage (Li-ion 4.25V, LifePo4
3.75V) BMS starts off power protection, all the other cells are all
in stop of charging, this process will enable your battery charging
in balance current, and your battery voltage are in balance status,
but when your cell voltage difference are in a big range, then
balance can not be functionning well
3.The relationship between Battery capacity and BMS current?
There is no direct relationship between Battery capacity and BMS
current, big capacity doesn`t mean a big battery, but rely on
continue current, that is to say if your engine is powerful, your
should choose high current of BMS, it is not relied on battery
capacity.
4. What type of charger should I choose?
Lithium battery must choose specific charger, do not use Charger
for Leadacid battery, for leadacid charger may have MOS with high
pressure breakdown protection, which will not protect of BMS over
charge. Life Po4 battery charger voltage=battery string No.X3.6V,
while Li-ion battery charger voltage=Battery string No.X4.2V.
5. What current BMS should I choose ?
Take 10S 36V as an example: what current BMS you choose is relied
on your E-bicycle Motor power and current limitation of controller.
eg., choose 15A for below 350W, 20A for below 500W, 30A for below
800W, 60A for Below 1000W, higher than 1200W are contact with our
service specialist for suggestions, one inall, continue current
shall be higher than current limitation in Controller.
6. Whether my BMS damaged?
if you want to judge if the BMS is damaged, please take the
folowing steps, to test if each cell voltage is the same with
voltmeter? if the cell voltage difference is over 1.0V, the fault
is displayed that it cannot run far, no power supply at the
start range, short charge time, all these issues are almost caused
by battery cells, if BMS damaged is displyed as no charge, no
discharge, no discharge while the battery has voltage.
