48V 150AH 19”Standard Cabinet Telecom Lithium Ion (LiFePO 4 )
Battery Pack,W: 440.0mm X D 435.0mm X H222.0mm
The 48V Lithium Ion Battery Pack is mainly working as 48VDC backup
power source, and it consists of 15 cells of Lithium Iron Phosphate
Battery Cells connected in series and telecom specialized high
performance and high reliability Battery Management System (BMS).
The battery’s +/- output terminals are connected to the +/-
terminals of rectifier. When the mains supply is normal, telecom
equipment is powered by mains through rectifier and battery pack is
also charged through rectifier; When the mains supply is outage,
the 48V lithium ion battery pack is supplying power to telecom
equipment without any time-delay to ensure telecom equipment is
powered without any interruptions, until mains supply resumed or
protective power cut-off by BMS due to over-discharge protection
activated automatically.
Voltage detection and protection function
The Product has the functions of cell and module voltage detection,
over voltage, under voltage alarm and protection. The cell voltage
detection accuracy is less than ± 15mV under normal temperature
static conditions.
Optimized electrical structure
The battery can be arranged vertically in the design/use of
electrical structure to enhance the stability of the battery
cells；Electrical structure has made more strengthening on heat
transfer and heat dissipation.
Pre-charge function (optional)
BMS has pre-charge function. For those applications with inverters
and other power electronics connected to battery, considering large
capacitors are used at charger side, pre-charge strategy can be set
in BMS as per specific conditions.
Dry contact (optional)
2 circuits of dry contacts output are supported, and they are in
normal-close mode. Dry Contact 1: Battery failure; Dry Contact 2:
BMS failure.
Active output (optional)
2 circuits of active output are supported to control external
warming-up and fans, etc. Warming-up power can reach up to 50W
(warming up power is from battery self)
Buzzer (optional)
Buzzer alarming is supported.
LCD Display Screen (optional)
LCD display screen is provided as option.
| Item | Specification | Remarks |
| Nominal Capacity | 150Ah | Standard discharge (1) capacity after standard charge (2) |
| Nominal Voltage | 48.0V | Configuration: 15 cells in series. Voltage of single cell is 3.2V. |
| Charge Voltage | 54.75V | |
| Voltage at End of Discharge | 41.0V | |
| Floating Voltage | 51.0V | |
| Maximum Continuous Charge Current (CC Threshold) | 150A | |
| Over Current Protection for Charge | 155A | N.A. |
| Over Voltage Protection | 3.80V/cell | N.A. |
| Maximum Continuous | 150A | |
| Discharge Current |
| Over Current Protection for Discharge | 155A | N.A. |
| Under Voltage Protection | 2.75V/cell | N.A. |
| Operation Allowable | Charge: 0～60°C | N.A. |
| Temperature Range | Discharge: -20～60°C | N.A. |
| Continuous Discharge Power | 1.4KW | 50%SOC |
| Power of Heating Module | 100W | Optional |
| Continuous Charge Power | 1.4KW | N.A. |
| Self-discharge Rate/Month | ≤3% | @ 25 ± 3℃,50%SOC |
| Cycle Life(cycles) | ≥5000 | @ 25 ± 3℃,0.2C/0.2C @80%DOD |
| Operation Allowable | ≤95% RH | Operation |
| Humidity Range | ≤85% RH | Storage |
| Recommended | 0～40°C | Max. 6 month |
| Storage temperature |
| Weight | 64.0(±2)kg | N.A. |
- Sleep and wake-up functions
| NO. | Sleep condition | Wake-up condition | Remark |
| 1 | In the idle state (no charge, discharge, no communication), the
lowest voltage of any cell is lower than the set sleep voltage (can
be set), after 30 minutes, enter normal sleep. | Charge and discharge, communication,reset button, soft switch, LCD | The battery with a soft switch and LCD can be waked up. |
| 2 | When the minimum cell voltage is lower than the cell over-discharge
protection value (can be set) or the total voltage is lower than
the overall over-discharge protection value (can be set), and after
1 minute, the under-voltage sleep is entered. | Charge, reset button, soft switch | The battery with a soft switch can be waked up. |
| 3 | Battery will enter to normal sleep after keeping idle state (no
charge and discharge, no communication)for 24 hours. | Charge and discharge, communication, reset button, soft switch, LCD | The battery with a soft switch and LCD can be waked up. |
| 4 | Forcing sleep through the host computer or soft switch | Reset button, soft switch | N.A. |
- Drawing of Front Panel and Interface Description
Drawing of Front Panel
| Battery Output | Nominal 48V output | Positive/Negative |
| For Maintenance | For maintenance | N.A. |
| Earth | Earth | N.A. |
v Do not use different charger to charge the battery.
v Do not charge with constant current higher than maximum charge
current allowed.
v Do not disassemble or reconstruct the battery.
v Do not throw or cause impact.
v Do not pierce a hole in the battery with sharp objects, such as
nail, knife, pencil, drill, etc.
v Do not mixing with other batteries.
v Do not solder on battery directly.
v Do not expose the battery to high heat, such as fire, etc.
v Do not put the battery into a microwave or high-pressure
container.
v Do not use the battery in reverse.
v Do not connect positive (+) and negative (-) with conductive
materials, such as metal, cables, etc.
