Qoltec 53878 Energy Storage LiFePO4 Battery User Manual

USER MANUAL
Energy storage LiFePO4 battery
Model: 53878

Scope

The specification shall be applied to Li-ion rechargeable battery pack of 51.2V150AH which is manufactured by our company.

Battery Pack Specification

Package

(package)
Minimum| 135Ah
3| Factory Voltage| 52.0V-54.40V| Mean Operation Voltage
4| Voltage at end of Discharge| 41.6V| Discharge Cut-off Voltage
5| Charging Voltage| 57.6V|
6| Internal Impedance| 520m0| Internal resistance measured at AC 1KHz after 50% charge
The measure must uses the new batteries that within one week after shipment and cycles less than 5 times
7| Standard charge| Constant Current: 100A
Constant Voltage: see No.5
cut-off: 0.02C A| Charge time : Approx 1h
Limiting current| 10A|
8| Standard discharge| Constant current: 100A
end voltage: see NO.4|
9| Maximum Continuous Charge Current| 100A| Th 10°C
10| Maximum Continuous Discharge Current| 100A| Th 10°C
11| Operation Temperature Range| Charge: 0∼45°C| Bare Cell 60±25%R.H.
Discharge: -20-55°C
12| Storage Temperature Range| Less than 8 months: -10∼35°C| at the shipment state 60±25%R.H.
less than 3 months: -10∼45°C
Less than 7 day: -20-65°C
13| Weight| 62±2Kg| Include case
14| Cycle life| ≥4000times| 90%D0D-0.2C/0.5C
Charger/Discharge25°C
90%D0D-0.2C/0.5C 25°C

Battery Management System

3.1 BMS Specification

1. The BMS is designed for 8-16 series lithium battery.
2. The BMS have all functions which are:
   ♦ overcharge detection function
   ♦ over discharge detection function
   ♦ over current detection function
   ♦ short detection function
   ♦ Temperature detection function
   ♦ balance function
   ♦ communicate function
   ♦ Alarm function
   ♦ Total capacity function
   ♦ Storage history function

3.2 BMS Protect parameter
15/16S Typical value specifications

recovery point
2. The remaining capacity is 96% lower than the intermittent power supply capacity Two conditions must be met in order to resume
Battery discharge current ?.1A detected
Cell over-discharge protection| Over-discharge detection voltage| 2.6±0.02V
Over-discharge detection delay time| Typical:2.Os
Over-discharge release conditions| 2.95±0.02V
Battery charge current k.1A detected
discharge Over-current protection current| 110±10A
rdischarge Over-current detection delay time| 1S
discharge Over-current release conditions| Restore immediately after charging, or automatically recover after 60 seconds
Transient discharge Over-current protection current| 125±10A
Transient discharge Over-current protection current delay time| 100mS
Charge OC protection current| 110±10A
charge Over-current detection delay time| 2S
charge Over-current release conditions| Discharge recovery immediately, or automatic recovery after 300S
Effective charging current| Charging entry current| 800mA
Charge exit current| 500mA
Effective discharl current| Discharging entry current| 800mA
Discharge exit current| 400mA
Short protection| Short protection current| 500±100A
Protection condition| Load short
Detection delay time| ≤ 350ps
Protection release condition| Charging release or Restart recovery
Temperature (T) protection| Charge high T protection| 65±5°C
Charge high T recover| 55±5°C
Discharge high T protection| 65±5°C
Discharge high T recover| 60±5°C
Charge low T protection| -10±5°C
Charge low T recover| -1±5°C
Discharge low T protection| -20±5°C
Discharge low T recover| -10±5°C
Balance| Balance threshold voltage| 3.40V
Alarm of cell failure| Core failure differential pressure| 800mv
The cell recovers differential pressure| 500mv
| Battery rated capacity| 135AH
Battery capacity| Cyclic accumulative capacity| 80% Number of cycles (adjustable)
Remaining capacity alarm| 15%
Residual capacity protection| 5%
Reset button| Power on/Activate| BMS is in hibernation state, press 1S reset button, BMS will be activated, and the LED indicator will turn on in turn, and then turn into normal working state;
Shutdown/Hibernate| When the BMS is in standby or working state (except charging), press the 3S reset button, and the BMS will sleep. After the LED indicator lights up one by one, the BMS will go to sleep state.
Power dissipation| Normal operating power consumption| ≤ 15mA, ≤ 20mA (with LCD on)
The power consumption of the dormant| ≤ 40uA
BMS power management| Maximum standby time| 24h (Charger is not available and there is no effective discharge current)
Prefilled function| 2000ms Prevent short circuit at the moment of opening
Communication| It has CAN and RS485 and RS23 standard communication interface, it can real-time monitoring the capacity of battery bank, the voltage, current, environment temperature, and charging/discharging current.
Internal resistance| <5mΩ
LCD screen| Simplified monitoring software, can view the cell, temperature, current and other data
Alarm| It has over-temperature, over charge, under-voltage, over-current, short circuit alarm Function.

Case Structure of PCB

4.1 PCB motherboard appearance

Case Structure of Battery Pack

There shall be no such defect as scratch, bur and other mechanical scratch, and the connector should be no rust dirt. The structure and dimensions see attached drawing of the battery.
5.1 Structure size and outline drawing
CHESHING is a company with a complete set of design and manufacturing technologies and capabilities, which can be integrated according to customer requirements and different manufactures of Cell&BMS resources to form a customer unique products.

5.2 Case Structure of Battery Pack
Front View:

Bottom View:

Connection mode for parallel communication

The RS485-2 interface serves as the parallel communication interface and RS 485-2 interface serves as the upper communication interface.The terminal device CAN read the sum of all battery data in parallel with the PACK through the RS 485-1 interface.

LED Indicators

7.1 LED lights order
1 operation light, 1 alarm light, 4 capacity indicator lights

7.2 Capacity indicator

Condition| | Charge| | | Discharge|
---|---|---|---|---|---|---
Capacity indicator lamp| Li| L2| L3| L4| L’1| L2   L3| L4
| 0-25%| Flash2| OFF| OFF| OFF| ON| OFF| OFF| OFF
25-50%| ON| Flash2| OFF| OFF| ON| ON| OFF| OFF
| 50-75%| ON| ON| Flash2| OFF| ON| ON| ON| OFF
| 75%| ON| ON| ON| Flash2| ON| ON| ON| ON
Running indicator light| | ON| | | | | Flash|

7.3 Flashing instructions

7.4 State indicator

Status Shut Down| Normal/Warning/Pr otection| RUN| ALM| Capacity (SOC) LED| Description
---|---|---|---|---|---
Shut down| OFF| OFF| OFF OFF OFF OFF| All OFF
Standby| Normal| Flash| OFF| Based on capacity| Standby
Warning| Flash| Flash
Normal| ON| OFF| Based on| capacity| ALM light does not flash when overcharge alarm
| Warning| ON| Flash
Over Charge Charge Protection Temperature, Current,
Failure protection| ON OFF| OFF ON| ON OFF| ON OFF| ON OFF| ON OFF| Switch to standby when there is no charging
Stop charging
Normal Warning| Flash Flash| OFF Flash| Based on| capacity| | |
Discharge| Over discharge protection| OFF| OFF| OFF| OFF| OFF| OFF| | Stop discharging
Temperature, Over current, Short circuit, Reverse connection, Failure protection| OFF| ON| OFF| OFF| OFF| OFF| OFF| OFF| Stop discharging
Fault /| OFF| ON| OFF| OFF| OFF| OFF| OFF| OFF| Stop charging or discharging

Communications specification

8.1 RS232 communications
The BMS has RS232 communication with PC, and the baud rate is 9600 bps. RS232 communication interface uses RJ12 network cable interface [6P6C].
RS232 communication interface definition:

8.2 RS485-1 communications
The BMS has RS485-1 communication with Inverter, and the baud rate is 9600 bps. RS485 communication interface uses RJ45 network cable interface.
RS485-1 communication interface definition:

8.3 RS485-2 communications
The BMS has RS485 communication with battery pack, and the baud rate is 9600 bps. RS485 communication interface uses RJ45 network cable interface.
RS485-2 communication interface definition:

8.4 CAN communications
BMS has CAN communication function with inverter or CAN TEST, baud rate of 500K. CAN communication interface uses RJ45 network cable interface.
CAN communication interface definition:

8.5 Dial address selection

Definition of parallel machine dialing switch: multi-machine communication when the battery Pack is in parallel. The dial switch is used to distinguish the different PACK addresses. The hardware address can be set by the dial switch on the board.
Battery pack with address 1 will be main battery, other batteries will be slave. Main battery will collect all the data and information in this parallel system. Only main battery can communicate with Invert or PC through RS485-1 or CAN.
Use address Settings for stand-alone machines: 0000
Address setting for parallel machine: refer to the following table for the definition of dialing switch.
Battery Pack Address

Battery Testing Equipment and Conditions

9.1 Measurement Apparatus

1. Dimension Measuring Instrument
   The dimension measurement shall be implemented by instruments with equal or more precision scale of 0.0Tmm.

2. Voltmeter
   Standard class specified in the national standard or more sensitive class having inner impedance not less than 10 KQ/V.

3. Ammeter
   Standard class specified in the national standard or more sensitive class. Total external resistance including ammeter and wire is less than 0.01Q.

4. Impedance Meter Impedance shall be measured by a sinusoidal alternating current method (AC 1kHz LCR meter).

9.2 Standard Test Condition
Test should be conducted with new batteries within one month after shipment from our factory and the cells shall not be cycled more than five times before the test. Unless otherwise defined, test and measurement shall be done under temperature of 23+2°C and relative humidity of less 75%, air 86Kpa~106Kpa.
9.3 Rest Period
Unless otherwise defined, 30min, rest period after charge,30min, rest period after discharge.

Storage and Others

10.1 Long Time Storage
If stored for a long time(don’ t used, exceed three months), the cell should be stored in drying and cooling place. The cell’s storage voltage should be 3.18~3.32V per cell. and the cell is to be stored in a condition that the temperature of 23+2°C and the humidity 0f 45%- 75%. Long-term use of unused batteries to recharge every 3 months, Ensure that the battery voltage is within the above range,
10.2 Others
Any matters that this specification does not cover should be conferred between the customer and TOPAK

Amendment of this Specification

This specification is subject to change with prior notice.

Appendix Handling Precautions and Guideline For Li-ion Rechargeable

Batteries

12.1 Preface
This document of ‘Handling Precautions and Guideline Li-ion Rechargeable Batteries’ shall be applied to the battery cells manufactured by CHESHING.
12.2 Note1 :
The customer is requested to contact our company in advance, if and when the customer needs other applications or operating conditions than those described in this document. Additional experimentation may be required to verify performance and safety under such conditions.
12.3 Note?2 :
Our company will take no responsibility for any accident when the cell is used under other conditions than those described in this Document.
12.4 Note3 :
Our company will inform, in a written form, the customer of improvement(s) regarding proper use and handling of the cell, if it is deemed necessary.

Danger Warning & Caution

• Do not immerse the battery in water or allow it to get wet.
• Do not use or store the battery near sources of heat such as a fire or heater.
• Do not use any chargers other than those recommended.
• Do not reverse the positive (+) and negative (-) terminals.
• Do not connect the battery directly to wall outlets or car cigarette-lighter sockets.
• Do not put the battery into a fire or apply direct heat to it.
• Do not short-circuit the battery by connecting wires or other metal objects to the positive (+) and negative (-) terminals.
• Do not pierce the battery casing with a nail or other sharp object, break it open with a hammer, or step on it.
• Do not strike, throw or subject the battery to sever physical shock.
• Do not directly solder the battery terminals.
• Do not attempt to disassemble or modify the battery in any way.
• Do not place the battery in a microwave oven or pressurized container.
• Do not use the battery in combination with primary batteries (such as dry-cell batteries) or batteries of different capacity, type or brand.
• Do not use the battery if it gives off an odor, generates heat, becomes discolored or deformed, or appears abnormal in any way. If the battery is in use or being recharged, remove it from the device or charger immediately and discontinue use.
• Do not use or store the battery where is exposed to extremely hot, such as under window of a car in direct sunlight in a hot day. Otherwise, the battery may be overheated. This can also reduce battery performance and/or shorten service life.
• If the battery leaks and electrolyte gets in your eyes, do not rub them. Instead, rinse them with clean running water and immediately seek medical attention. If left as is, electrolyte can cause eye injury.

—— That is the all—

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