Specifications of lithium iron phosphate battery pack -Lithium - Ion Battery Equipment
What are the basic technical indicators of lithium iron phosphate batteries?
Application: Realize the remote power supply of various low-power communication terminal equipment. Its important loads include microcells, wireless local area network equipment, optical fiber communication network equipment, indoor power distribution systems, outdoor edge stations, radio frequency remote control, etc.
LiFePO4 battery management system
1. Important technical performance indicators of lithium iron phosphate battery:
Working temperature: -20℃~+60℃
Charging environment temperature: 0℃~55℃;
Discharge ambient temperature: -20℃~60℃.
Storage temperature range: -25℃~+60℃
Relative humidity: ≤85%
Atmospheric pressure: 70kpa~106kpa
Working voltage: -48v~-56v
Audio noise: <55dB (1 meter from the front of the device)
The average charging voltage range is (3.55~3.60)V, and the floating charging voltage range is (3.35~3.40)V
Warranty period: 5 years, the cycle life should not be less than 2000 times, and within the net floating life, it should not be less than 10 years.
The battery capacity is 50AH, and each 48V group must be composed of 15 or 16 single cells, with a battery management system BMS function.
Battery self-maintenance: with battery automatic balancing function; this product should have monitoring function, which can be connected to the buyer's dynamic environment monitoring system through RS232 or RS485 interface.(Lithium - Ion Battery Equipment)
Automatic charge and discharge management: the monitoring unit automatically measures the charge and discharge current of the battery, and manages the floating charge and uniform charge of the battery;
2. Consistency of battery performance:
A) The maximum and minimum static open circuit voltage difference between fully rechargeable cells in the battery pack should not be greater than 0.05v;
B) After the battery pack enters the floating charging state for 24 hours, the terminal voltage difference between the batteries is not greater than 0.20v;
C) When the battery is discharged, the voltage difference between the batteries is not more than 0.25v;
D) The maximum and minimum capacity of each battery shall not differ from the average value by more than 1% of the average value.
3. Safety performance requirements for lithium iron phosphate batteries:
Overcharge safety features: After the battery is charged (25± 5) ℃ for 1h. at 25±5c
Under the condition of 5000mA, the single charge current of the battery is 5V.
Performance requirements: no explosion, no fire.
High temperature safety features: The battery is kept in an incubator at (130± 2) ℃ for 30min.
Performance requirements: no explosion, no fire
Drop safety features: After the battery is charged (25±5) ℃ for 1 hour. Then at (25±5) ℃, drop from the height of 4 meters to the board.
Performance requirements: no explosion, no fire.
External Short Circuit: Do not burn when the battery is shorted and should not explode.
External Effects: Batteries should not explode or burn in the event of a needle stick, crush, bump, fall.
4. Bristol-Myers Squibb Protection Features
(1) Overload protection
The battery pack has an overcharge protection function. When the overcharge state is detected, the battery pack protection system should cut off the charging circuit. The battery pack should not leak, smoke, fire or explode. The battery pack can work normally after the voltage and current are eliminated.
(2) Over discharge protection
When the voltage of any battery is lower than the over-discharge protection voltage (2.5v, which can be adjusted according to the value given by the manufacturer), the battery protection system can cut off the discharge circuit. After power is restored, the battery pack should automatically resume charging and work normally.
(3) Short circuit protection
When the battery pack is fully charged, the battery pack should be able to cut off the circuit when the positive and negative poles of the battery pack are short-circuited. The battery pack must not leak, smoke, catch fire or explode. After the short circuit is removed, the battery pack can work normally.
(3) Reverse connection protection
The positive and negative terminals of the battery should be clearly marked, a plug-in mechanism should be used, and the design has the characteristics of reverse connection and reverse connection; when the battery pack is fully charged, the protection system of the battery pack can cut off the circuit when the positive and negative electrodes are reversely connected. The battery pack must not leak, smoke, catch fire or explode. After removing the reverse voltage, the battery pack can work normally.
Application: Realize the remote power supply of various low-power communication terminal equipment. Its important loads include microcells, wireless local area network equipment, optical fiber communication network equipment, indoor power distribution systems, outdoor edge stations, radio frequency remote control, etc.
LiFePO4 battery management system
1. Important technical performance indicators of lithium iron phosphate battery:
Working temperature: -20℃~+60℃
Charging environment temperature: 0℃~55℃;
Discharge ambient temperature: -20℃~60℃.
Storage temperature range: -25℃~+60℃
Relative humidity: ≤85%
Atmospheric pressure: 70kpa~106kpa
Working voltage: -48v~-56v
Audio noise: <55dB (1 meter from the front of the device)
The average charging voltage range is (3.55~3.60)V, and the floating charging voltage range is (3.35~3.40)V
Warranty period: 5 years, the cycle life should not be less than 2000 times, and within the net floating life, it should not be less than 10 years.
The battery capacity is 50AH, and each 48V group must be composed of 15 or 16 single cells, with a battery management system BMS function.
Battery self-maintenance: with battery automatic balancing function; this product should have monitoring function, which can be connected to the buyer's dynamic environment monitoring system through RS232 or RS485 interface.(Lithium - Ion Battery Equipment)
Automatic charge and discharge management: the monitoring unit automatically measures the charge and discharge current of the battery, and manages the floating charge and uniform charge of the battery;
2. Consistency of battery performance:
A) The maximum and minimum static open circuit voltage difference between fully rechargeable cells in the battery pack should not be greater than 0.05v;
B) After the battery pack enters the floating charging state for 24 hours, the terminal voltage difference between the batteries is not greater than 0.20v;
C) When the battery is discharged, the voltage difference between the batteries is not more than 0.25v;
D) The maximum and minimum capacity of each battery shall not differ from the average value by more than 1% of the average value.
3. Safety performance requirements for lithium iron phosphate batteries:
Overcharge safety features: After the battery is charged (25± 5) ℃ for 1h. at 25±5c
Under the condition of 5000mA, the single charge current of the battery is 5V.
Performance requirements: no explosion, no fire.
High temperature safety features: The battery is kept in an incubator at (130± 2) ℃ for 30min.
Performance requirements: no explosion, no fire
Drop safety features: After the battery is charged (25±5) ℃ for 1 hour. Then at (25±5) ℃, drop from the height of 4 meters to the board.
Performance requirements: no explosion, no fire.
External Short Circuit: Do not burn when the battery is shorted and should not explode.
External Effects: Batteries should not explode or burn in the event of a needle stick, crush, bump, fall.
4. Bristol-Myers Squibb Protection Features
(1) Overload protection
The battery pack has an overcharge protection function. When the overcharge state is detected, the battery pack protection system should cut off the charging circuit. The battery pack should not leak, smoke, fire or explode. The battery pack can work normally after the voltage and current are eliminated.
(2) Over discharge protection
When the voltage of any battery is lower than the over-discharge protection voltage (2.5v, which can be adjusted according to the value given by the manufacturer), the battery protection system can cut off the discharge circuit. After power is restored, the battery pack should automatically resume charging and work normally.
(3) Short circuit protection
When the battery pack is fully charged, the battery pack should be able to cut off the circuit when the positive and negative poles of the battery pack are short-circuited. The battery pack must not leak, smoke, catch fire or explode. After the short circuit is removed, the battery pack can work normally.
(3) Reverse connection protection
The positive and negative terminals of the battery should be clearly marked, a plug-in mechanism should be used, and the design has the characteristics of reverse connection and reverse connection; when the battery pack is fully charged, the protection system of the battery pack can cut off the circuit when the positive and negative electrodes are reversely connected. The battery pack must not leak, smoke, catch fire or explode. After removing the reverse voltage, the battery pack can work normally.
