4850A lithium battery system

CHDLFP-4850A 50A lithium iron phosphate battery system as backup power source for ups is designed, produced and sold by Shenzhen Consnant Technology CO.,LTD.The system is a kind of unattended intelligent
backup power system. As a component of electrical equipment embedded in cabinet,it is suitable for small capacity
pull-in network equipment、distance exchange、mobile communication equipment、transmission equipment、satellite ground station and microwave communication equipment. It has functions of concentrated control、battery
maintenance and management satisfying requirement for unattended operation or few people operation.

Application field

As a back up power source offering 48V DC for communication equipment, consistent of BMS and 15 serials of LiFeO4 cells, the battery pack had a charge port which can connect switch power. When there is electric supply, the switch power can charge the back up power and communication equipment. When electric stops supplying, this back up power can charge communication equipment to get ups.

Main parameters

Function

name

Function set

list of projects

set value range

set range

 

 

 

Monomer voltage alarm

 

open

High voltage

alarm

3700mV

3000~6000mV

High voltage

alarm restore

3400mV

3000~4275mV 

 

open

low voltage

alarm voltage

2700mV

1500~4250mV

Low voltage

alarm restore

3000mV

2000~4075mV 

 

 

 

Monomer of over-voltage protection

 

 

 

 

open

Over voltage

protection

3700mV

3000~4500mV

Over voltage recovery

voltage

 

3400mV

3000~4250mV

Over voltage recovery condition

1, monomer recovery point voltage drop to protection, automatic recovery

2, detected the battery discharge

current >1A

 

 

 

Monomer under-voltage protection

 

 

 

 

open

under-voltage protection

voltage

 

2500mV

1500~2900mV

Under voltage

recovery voltage

 

2700mV

2000~3000mV

Under voltage

recovery condition

detected a charging current (> 1 a) or mains recovery

 

Battery total voltage alarm

 

open

high voltage

alarm

54.0V

55.0V~60.0V

High voltage

alarm restores

53.2V

53.0V~60.0V 


 

 

 

open

Low voltage

alarm

43.0V

36.0V~50.0V 

low voltage

alarm restores

45.0V

40.0V~55.0V 

 

 

 

 

Battery over-voltage protection

 

 

 

 

  Can not set

 

Over voltage protection condition

Total voltage

52.5V

And charge

current0.3A

 

--

 

 

Charge recovery

Over voltage

recovery

 

50.25V

 

--

Charge recovery condition

1, the total voltage drop to restore point, automatic recovery charge

2 more than 24 hours meet one

condition then recover charge

 

 

 

 

 

Battery over-voltage protection

 

 

 

 

 

 

open

Over voltage protection

voltage

 

54.5V

52.0V~60.0V 

Over voltage recovery

voltage

 

51.0V

48.0V~58.0V

 

 

Over voltage recovery conditions

1, the total voltage drop to restore point, automatic recovery charge

2, detected the battery discharge current (>

1 a) discharge current and discharge continue for a period of time or a certain amount of power

 

 

 

Battery under voltage protection

 

 

 

 

open

under-voltage

protection voltage

 

40.0V

36.0V~50.0V

Under voltage recovery

voltage

 

43.0V

40.0V~55.0V

low voltage recovery

conditions

Detect the battery charging current, charging current > 1 a)

 

Batteries temperature banned charge

 

 

open

Charge high temperature

alarm 

 

60℃ 

 

35℃~80℃ 

High temperature

alarm restore 

 

45℃ 

 

35℃~80℃ 


 

 

 

Charge over temperature

protection

 

60℃

 

35℃~80℃ 

The charging

thermal recovery

 

45℃

 

35℃~80℃ 

Charging low temperature

alarm

 

-15℃

 

-20℃~10℃

Low

temperature alarm restore

 

0℃

 

-20℃~10℃

Under charging temperature

protection

 

-20℃

 

-20℃~10℃ 

 

 

 

Under charging temperature

restore

 

-15℃

 

-20℃~10℃ 

 

 

 

 

 

 

 

 

Batteries temperature banned discharge

 

 

 

 

 

 

 

 

 

 

open

Discharge high temperature

alarm

 

65℃

 

35℃~80℃

High temperature

alarm restore

 

60℃

 

35℃~80℃

Discharge temperature

protection

 

80℃

 

35℃~80℃ 

The discharge

thermal recovery

 

65℃

 

35℃~80℃ 

Discharge low

temperature alarm

 

-20℃

 

-20℃~10℃

low temperature alarm

recovery

 

-18℃

 

-20℃~10℃


 

 

 

Discharge under temperature

protection

 

-25℃

 

-25~10 

Discharge owe temperature

recovery

 

-20℃

 

-20℃~10℃ 

 

 

 

 

 

 

 

 

 

 

 

Environmental temperature alarm

 

 

 

 

 

 

 

 

 

 

 

 

open

Environmental high temperature

alarm

 

60

 

-20℃~60℃ 

Environmental over temperature

protection

 

70

 

-20℃~80℃

Environmental over temperature

restore

 

50

 

-20℃~80℃

Environmental low temperature

alarm

 

-10

 

-20℃~60℃ 

Environmental under temperature

protection

 

-20

 

-20℃~60℃

Environmental under temperature

restore

 

0

 

-20℃~60℃

 

Power temperature protection

 

 

open

Power high temperature

protection

115

60℃~120 

Power high temperature

restore

80

60℃~120 

Charging over-current alarm

 

open

charging alarm

current

53A

0A~charge protection current 

charging alarm

restore

50A

0A~charge alarm current 


 

 

 

 

 

 

Charging over-current protection

 

 

 

 

 

 

open

charging protection

current

 

55A

 

0A~100A 

Charging

overflow delay

5±1S

1 S  

600S

Charging overflow recovery

 

/

 

/

overflow restoration conditions

overflow restoration conditions every 1 min test once again, the

readings<over-current protection values  or

has a discharge current   

The charging current limiting function

 

close

 

charge limited current

0A

(set to 0, will close the charging current limiting function)

0A

 

Effective

charging current

charging into the current

500mA 

Charging Exit the current

300mA 

 

Discharge overflow alarm

 

 

open

discharge alarm current

 

-53A

0A~discharge protection current

 

Discharge the

alarm restore

-50A

0A~discharge the alarm current 

 

 

 

 

 

 

 

 

Discharge over-current protection

 

 

 

 

 

 

open

discharging

protection current

 

-55A

0A~ class 2 protection current 

Discharge

overflow delay

5±1S

1  S To 600S

Discharge flow recovery

 

/

 

/ 

overflow restoration conditions

every 1 min test once again, the readings

<over-current protection value or charging current

 

Secondary over-current protection

 

open

secondary protection current

 

-150A

discharge over-current

protection value

To 300A


 

 

 

The secondary overflow

delay

 

100mS

1 mS To 500mS

 

 

close

the secondary

overflow locking

the continuous secondary overflow , exceed over flow number lock

 

The secondary

locking

connect the charger   

 

 

 

 

 

Output short circuit protection

 

 

open(closed is not currently supported )

short circuit protection current

 

-300A

-1000A

To the secondary

over-current protection value

Short circuit

protection delay

 

300uS

1 uS To 1000uS

 

 

open

short circuit protection

lock

continuous output short circuit, exceed overflow lock number

Cancel the short-circuit

lock

 

connect charger

 

The effective discharge

current

discharging into the current

-750mA

Discharging exit the current

-500mA

Over-current automatic

recovery

 

automatic recovery delay

 

60S

1 S To 600S

 

 

Continuous overflow locking

 

continuous overflow definition

interval of not more than 5 minutes over current events, referred to as a continuous overflow

Over-current lock number

10times

1 time 

To 100 times

Factory capacity set

rated capacity factory Settings

50Ah

1Ah to 100Ah

The remaining capacity of the

factory Settings

according to the batteries voltage forecasts

 

Batteries balance function

 

open

batteries charging

equilibrium

Open conditions: effective state of charging current

 

Balanced open

voltage

3600mV

3000mV

To 4500mV


 

 

 

Equilibrium opening differential

voltage

 

50mV

Equilibrium end differential value

to 100mV

 

End balanced differential voltage value

 

 

30mV

10mV

To Balanced open differential voltage

value

 

 

 

 

 

open

equilibrium temperature

limit

according to the environment temperature setting equilibrium temperature range

Balanced prohibits high

temperature

50

Low temperature equilibrium value

to 70

Equilibrium low temperature prohibition

 

 

0

-20

To Equilibrium high

temperature

prohibited value

open

cell static

equilibrium

Open conditions: all not the discharge state

 

 

 

 

Close

the static equilibrium

time

 

36000S

 

<50000S

Static equilibrium

time

open equilibrium under the condition of static, time increments

Remove balance

timeout

effective charge and discharge current, clear the static equilibrium timeout sign

 

 

Battery failure warning

 

 

 

close

Battery failure differential

value

 

500mV

Battery recovery differential value to

1500mV

Battery recovery differential

value

 

300mV

150mV

To Battery failure differential value

 

battery capacity

set

battery rate capacity

50Ah

5Ah

To 200Ah

 

 

residual capacity of battery

estimate based on batteries voltage


 

 

 

 

 

Regular charge function

after the over voltage protection: the battery remaining capacity drops below 95% or meet regularly charging conditions (1 time charge / 1 day), if the voltage under over-voltage protection setting back charge.

open

residual

capacity alarm

30%

close

battery

capacity alarm

/

 

 

 

 

open

 

 

 

 

intermittent discharge

opening: after battery undervoltage protection, need to charge batteries, until voltage reach restore point, recover discharge

 

Closed: after battery undervoltage protection, within 10 seconds voltage rebounded to restore point, recover discharge

 

close

external switch control

closed: normal work Disconnect: system shutdown

Features

CHDLFP-4850A50A lithium iron phosphate battery system has some excellent properties:

1) Lithium iron phosphate (LiFePO4) as cathode material, single battery has high safety, high energy density and good cycle performance;

2) External power switches improve the safety factor of communication equipment installation;

3) Latest technology developments in international communication power supply are followed, and advanced power control technology and device is used. Built-in and high performance BMS in battery system has protection functions of over discharge, over charge, over current and temperature, to ensure battery safety and good communication between battery system and host;

4) Charging and discharging automatic management. Automatic measurements of charge and discharge current, equilibrium management and over discharging protection of battery are carried out by monitoring unit. When the battery voltage is lower than the warning value, alarm information appears. If the voltage is too low, the battery will automatically be cut off to protect the battery;

5) The system has good electromagnetic compatibility and full intelligent design. Configured centralized monitoring module has remote measurement and communication and computer management. Unattended management is possible by communicating with remote monitoring center, complying with the development requirements of modern communication technology;

6) The combination of power control technology and computer, can real-time monitor and control various parameters and state;

7) Flexible configuration: multi module parallel can improve the output power and capacity;

 

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