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BS-503M1 5S Li-ion battery PCM/BMS
‧Category:
5S Li-ion/LiFePO4 battery PCM/BMS
‧Description:
‧5S Li-ion battery PCM/BMS
‧Suitable for application to Li-ion batteries such as LiMn, LiPo, LiFePO4.
‧With MCU , adjustment for parameters to meet with requirements of products is available
‧Becoming with power devices such as power tool, sea scooter and e-bike, and very cost-efficient for your projects.
‧250 m A Voltage- Balance Enable for cell voltage variations.
‧Zero Shutdown Quiescent Current.
Features
Smart device realizes the requirements of functions and specifications:
Equipped with Microchip MCU, which is driven by our own developed software and hardware, the PCM/BMS can exactly satisfy the requirements for functions and specifications of the device.  Its application to most Li-ion batteries will be available after adjustment for relevant parameters on your demand.
Active voltage balancing mode abates voltage variations:
With voltage-balancing function, MCU always monitoring voltage variations among cells, takes a 2-phrase voltage-balancing mode to effectuate the voltage balance.
CCP/CVP charging mode makes it fast, exact and full to charge the battery.
Our self-innovative CCP/CVP charging mode facilitates a fast and highly efficient charge to the battery, even activating cell materials to a certain extent.
All-sided protective policy ensures safety.
Our PCM/BMS carrying impulsive protective units keep itself and batteries safe against over-charge, over-discharge over-current, over-temperature and short-circuit.( Specific items bear capabilities of detecting I.V.R. ratio to uplift operation efficiency for power tools.)
Our PCM/BMS in possession of the functions of giving low energy alarm and signals of abnormal status to users.

High power input and high power output smooth your operations.

Max continuous output current is up to 30A;Peak current is 80A. Very suitable for high power devices.

Zero Shutdown Quiescent Current
In case the system is put idle without being used, the circuitry of discharging board, even then tied up with battery pack, can isolate itself into open circuit off the battery pack. Therefore, no current of battery dissipates under this state. This safe recipe can protect the battery from being broken down due to the battery in low voltage long on the shelf. Our longest test till now has been remaining for four years. It is still live.

SB-503M1 5S Li-ion battery PCM/BMS for Power tool

Electric characteristcs : application to LiMn, LiPo , LiFePO4.

Item  Contents:For every single cell of the battery pack  Min  Typical  Max  Unit
Charge 1. Over-charge protection voltage  3.75  3.80  3.85  V
2. Over-charge protection delay time  0.5  1  1.5  S
3.Recovery from over charge protection
 3.30 
 3.35  3.40  V
Discharge 1. Over discharge protection voltage  2.40  2.45  2.5  V
2.Over discharge protection delay time  0.5  1  1.5  S
3.Recovery from over discharge protection  2.95  3.0  3.05  V
Charge current protection /Discharge current protection 1. Over current protection in charging  4.5  5  6  A
2.Over current protection in discharging   29  30  31  A
3 Over current protection delay time in charging & discharging  400  500  600  ms
4. Short circuit protection delay time   2.5  5  10  ms
5. Normal charge current    1~5 A
Voltage Balancing 1. Start voltage of Balancing  3.50  3.55  3.6  V
2. Delta voltage of Balancing    50±1%    mV
3. Balancing current    200    mA
4. Balancing mode:   Resistor  
Over temperature protection in Charging 1.PCB working temperature  -20  25  80  ℃
2.Over temperature protection(Charger)  65  70  75  ℃
3. Recovery from over temperature protection   55  60  65  ℃
4.Over/under temperature protection delay time  1  1.5  2 Sec.
5. Under temperature protection     <-20℃  ℃
Over temperature protection in discharging 1.PCB working temperature(discharger) -20  25  80  ℃
2.Over temperature protection  65  70  75  ℃
3.Recovery from over temperature protection  55  60  65  ℃
4.Over/under temperature protection delay time  1  1.5  2 Sec. 
5.Under temperature protection    <-20℃  ℃
Recovery from protection
Condition
1. Over current charge protection Recovery in 1S under removal of protection condition    
2. Over current discharge protection Recovery in 1S under removal of protection condition    System needs resetting
3.Short circuit protection Recovery under removal of protection condition     System needs resetting
4.Over temperature protection Recovery within temperature limit     
5.Under temperature protection Recovery within temperature limit     
6.Over-charge protection Recovery under removal of protection condition     
7.Over-discharge protection Recovery under removal of protection condition     
Quiescent  power consumption 1.No Load Quiescent Current in stand-by mode    20mA  
2. Shutdown Quiescent Current in sleep mode    0.5uA  

 2-1. Functions 

 Function  Instructions  Status
 Charge Mode  Led indicator  Charging  Normal charging status Red Led blinks
 Full storage  Any cell in the battery shows high storage. Red Led keeps bright
 Finishing a complete charge  Finishing a charge by CCP/CVP mode with voltage-balancing operation Red Led keeps bright
 Abnormal  Abnormal in Voltage or temperature Red Led blinks
 Ambient condition checkup Short circuit voltage  Inspecting cell characteristics  Judge normal cell or a bad cell 
Open circuit voltage Inspecting cell characteristics Judge normal cell or a bad cell 
Under temperature  Below 0℃ an abnormal temperature for charging 
Over temperature  Over 70℃  an abnormal temperature for charging 
 Charge Method CCP  Multi-stage Constant Current charging mode
(Compound Factor Relevance Charging Mode)
Even current pulse charging method
CVP  Constant Voltage charging mode
 
Even current pulse charging method
Voltage Balancing    2- phrase voltage balancing function Delta voltage below 30mV±10% 1stst phrase:charging/ voltage balancing till delta voltage beneath 50m V.
2nd phrase:voltage balancing till delta voltage beneath 30m V。 
 Discharge Mode   Led indicator Discharge allowed Any cell voltage stands beyond protection voltage.  Green Led keeps bright. The Max power output is 30A; Short-circuit protection operates on 80A. 
Low Battery alarm Any cell voltage falls at low voltage of alarm.  Green Led turns blink 0.5S in every0.5S, giving low battery alarm.
Discharge prohibited Any cell voltage reaches protection voltage   
 Energy Storage Led indicator  Switch off/on  Battery storage stays between75%~100% 4LED keeps bright on and three off.
Battery storage stays between 50%~75%  3LED keeps bright on and three off.
Battery storage stays between 25%~50% 2LED keeps bright on and three off. 
Battery storage stays between 0%~25%  1LED keeps bright on and three off. 
 Ambient Condition Checkup  Operations of all parts go with ambient temperature range from between-20℃~80℃。Out of this range , functions all stop until temperature returns. Refer to each part of instructions relevant to temperature.