aolithium Server Rack Lithium LiFePO4 Battery User Manual

: June 12, 2024
: aolithium

Table of Contents

Safety Precautions
Battery Specifications
Package Contents
Performance Features
Typical Applications
Panel Introduction
Charge and Discharge
Series and Parallel Connection
Maintain and Store
Warranty and Warranty Exclusions
Return & Refund
Shipping
Customer Support
Read User Manual Online (PDF format)
Download This Manual (PDF format)

aolithium Server Rack Lithium LiFePO4 Battery

aolithium Server Rack Lithium LiFePO4 Battery

Please comply with all warnings and operating instructions in this manual strictly.
Save this manual properly and read carefully the following instructions before installing the unit.
Do not operate this unit before reading through all safety information and operating instructions carefully.

Safety Precautions

Please observe the following safety rules when using batteries. Abuse of batteries can lead to overheating, bulging and fire of batteries and cause serious damage.

DO NOT disassemble or modify the battery.
DO NOT short circuit positive and negative terminals.
DO NOT puncture, drop, crush, burn, penetrate, shake, or strike the battery.
DO NOT expose to the environment, this battery is not sealed. Please keep the battery away from water, heat sources, sparks, and hazardous chemicals.
DO NOT dispose of the battery as household waste. Please use recycling channels in accordance with local, state, and federal regulations.
Only charge the battery with a battery charger or charge controller that is compatible with lithium iron phosphate batteries.
If the battery shuts off due to a low state of charge, please disconnect the battery from your equipment to eliminate parasitic loads and charge the battery as soon as possible.
Please wear proper protective equipment when working on the battery.
Please use insulated tools when working on the battery.
Please keep the battery out of the reach of young children.
Please use suitable handling equipment for safe transportation of the battery.

Battery Specifications

Nominal Characteristics

Package Contents

1- Aolithium LiFePO4 Battery
1- User Manual
1- Accessory Kit: including positive/negative parallel cable, positive/negative discharge cable, earth cable, communication cable, rack.
If you order more than 4 batteries, the accessories do not include the rack, you need to configure the cabinet.

Performance Features

The energy storage system realizes energy storage for customers to avoid the business interruption in the communication system due to power outages and other situations;
The rack-type design supports parallel expansion, and high-energy-density battery products achieve the same energy supply in a smaller volume, reducing the space occupation of the equipment room ;
BMS management system for communication lithium batteries, which can monitor all single cell voltages in the battery pack, total battery pack current, total voltage, ambient temperature and many other parameters in real time, with a number of protection functions such as preventing battery overcharge and over discharge, which can improve battery utilization efficiency and extend battery life.
High-energy, low-power lithium equipment, to achieve higher energy supply, lower energy consumption, and reduce environmental pollution.
Adopt all-around and multi-level battery protection strategy and fault isolation measures to ensure safe operation of the energy storage system.

Typical Applications

Small-capacity home storage equipment
Remote switch
Mobile communication equipment
Transmission equipment
Satellite earth stations
Microwave communication equipment and other backup power
It has the function of centralized control, battery maintenance and management, meet the requirements of unattended.

Panel Introduction

Front Panel
Picture:
aolithium Server Rack Lithium LiFePO4 Battery

LED Indicator Definition

LED light: 4 green capacity indicators, 1 red alarm indicator, 1 green operation indicator

| | | |
---|---|---|---|---
SOC| ALM| RUN

Status Indicator Description

System Status	Abnormal Events	RUN	ALM	Capacity LED	Description

•

|

•

|

•

According to the capacity LED indication Maximum indication LED Flashing 2

According to the capacity LED indication Maximum indication LED Flashing 2

Flashing Description

Flashing style	Bright	Off
Flashing 1	0.25S	3.75S
Flashing 2	0.SS	0.SS
Flashing 3	0.SS	1.SS

Capacity Indication Description

Status	Charge	Discharge
Capacity indicator light	L4•	L3•
soc	0 2s%	Flashing 2
2s so%	Bright	Flashing 2
so 7s%	Bright	Bright
75 100%	Bright	Bright
Operation indicator light •	Bright	Flashing 3

DIP Switch Setting

For multiple parallel communication operation, you need to configure the DIP address of each PACK first.
Address of O is defined as : (The black dot is the DIP position, same as below)
Address 1 , Address 2 , binary, other addresses and so on.

Main frame setting:
DIP address 32 is Pylontech, Deye, Goodwe, Megarevo agreement, address 48 is Victron, SMA agreement, (address 32 and address 48, only one can be selected, can not be dialed at the same time), CAN line is only connected to the Main frame BMS, can communicate with the inverter through CAN.
Slave settings:
set according to the device order, slave address range Oto 15, 16 parallel. (As in Table 1)

Slave settings (Table 1)

Address| DIP Switch position| Reserved| Main Frame| Description
---|---|---|---|---
| #1| #2| #3| #4| #5| #6|
0| OFF| OFF| OFF| OFF| OFF| OFF| (Slave) Pack0
1| ON| OFF| OFF| OFF| OFF| ON| (Slave) Pack1
2| OFF| ON| OFF| OFF| OFF| OFF| (Slave) Pack2
3| ON| ON| OFF| OFF| OFF| OFF| (Slave) Pack3
4| OFF| OFF| ON| OFF| OFF| OFF| (Slave) Pack4
5| ON| OFF| ON| OFF| OFF| OFF| (Slave) Packs
6| OFF| ON| ON| OFF| OFF| OFF| (Slave) Pack6
7| ON| ON| ON| OFF| OFF| OFF| (Slave) Pack7
8| OFF| OFF| OFF| ON| OFF| OFF| (Slave) Pack8
9| ON| OFF| OFF| ON| OFF| OFF| (Slave) Pack9
10| OFF| ON| OFF| ON| OFF| OFF| (Slave) Pack10
11| ON| ON| OFF| ON| OFF| OFF| (Slave) Pack11
12| OFF| OFF| ON| ON| OFF| OFF| (Slave) Pack12
13| ON| OFF| ON| ON| OFF| OFF| (Slave) Pack13
14| OFF| ON| ON| ON| OFF| OFF| (Slave) Pack14
15| ON| ON| ON| ON| OFF| OFF| (Slave) Pack1 5
32| OFF| OFF| OFF| OFF| OFF| ON| (Main frame) Pack32 Pylontech, Deye Goodwe Megarevo Agreement
48| OFF| OFF| OFF| OFF| ON| ON| (Main frame) Pack48 Victron, SMA Agreement

Communication

RS485 interface, it can realize the monitoring and management of multi-unit in parallel, the CAN interface can realize the communication with PC or other intelligent terminal equipment.

1 .5.1 RS232 Interface (Reserved physical interface, no function)

6P6C Vertical RJ11 Receptacle

Pins| Definition
3| BMSTX
4| BMS RX
5| GND

1.5.2 RS485 Interface

8P8C Vertical RJ485 Receptacle

Pins| Definition
1, 3| RS485_B
7| RS485_A
2, 6| GND
4| CANH
5| CANH
8| NC

1.5.3 Main Frame CAN Interface to Communicate With PCS (4.4 for mainframe settings), Schematic diagram of main frame CAN interface to communicate with PCS:

1.5.4 Parallel Wiring Method
The battery packs communicate with each other in parallel via RS485 bus, and also with devices with RS485 bus, while the CAN interface realizes communication with PCS or other intelligent terminal equipment.

The PC host computer reads the information of any battery pack connected in parallel by RS485 bus. The wiring method of multi-unit parallel bus is shown below.
Wiring method 1: Separate CAN cable: 1/2/3/6/7/8 NC,4-CANH 5-CANL
Wiring method 2: separate RS485 network cable: 1 /3 RS485-B, 7
RS485-A,2/6-GN D,4/5/8 NC (mainframe cable)
Wiring method 3: RS485 and CAN same port compatible cable: 1 /3
RS485-B,7RS485-A,2/6-GND,4-CANH 5-CANL,8 NC

Parallel cable: Only RS485 is connected from mainframe to slave

Pins	Definition
1, 3	RS485_B
7	RS485_A

(wiring method 2), other slave to slave use standard network cable.

Weak Power Switch (self-locking)

When the weak switch is closed, the BMS works normally; when the weak switch is broken, the BMS performs shutdown.

Reset Button

A long press of the button enables software or hardware to reset the BMS and clear various abnormal states.

Power Socket

The power connection consists of 2 positive sockets in parallel and 2 negative sockets in parallel.

Battery Management System
BMS Profile
BMS is a protection board specially designed for 51.2V1 00Ah server rack battery.
One BMS protection board can only control one energy storage system.
The electrical schematic is as follows:

Function Description

Voltage Detection and Protection Function Over-voltage alarm, low-voltage alarm, over-voltage protection, and under-voltage protection functions for single cell and battery pack.
Current Detection and Protection Function Charging and discharging current detection, alarm and protection function. The upper computer shows negative current for discharging and positive current for charging.
Short Circuit Protection Function Output short circuit detection and protection function.
Temperature Detection Function
It has the ability to detect the temperature of the battery cell, environment and power MOS, and to warn and protect when charging and discharging at high and low temperature.
4-channel cell temperature detection, 1-channel environmental temperature detection, 1-channel power MOS temperature detection, and 6-channel NTC.
Battery Capacity Calculation and Cycles Function
Real-time SOC calculation, full capacity and current capacity of the battery pack can be set by the host computer. After a complete charge/discharge cycle, the capacity after the cycle can be configured automatically.
With the function of calculating the number of charge/discharge cycles, when the accumulated discharge capacity of the battery pack reaches 80% or more, the number of cycles will be increased once .
Charge and Discharge MOSFET Switching Function
Low internal resistance, high current, optimized design for large capacitive load turn-on, zero switching, and high charging withstand voltage of backup power applications .
Charge and Discharge MOSFET Switching Function
Charge balance can be set flexibly (on voltage, balance voltage), which can effectively improve the battery life and cycle life.
LED Status Indication Function
6 LED lights, 4 green capacity indicators, 1 red alarm indicator, 1 green operation indicator.
Smart Key Switch Function
Intelligent one-touch switch design, the system can be manually turned on and started when the power is off, and manually turned off when the power is not ready. Long press of the button can realize software or hardware reset BMS and clear various abnormal states.
RS485 Communication Function
With RS485 communication function, PC or intelligent front-end can monitor battery data, operation and parameter setting through telemetry, telematics, remote control and other commands to monitor BMS and and battery pack status in real time.
Upper Computer Control Function
It can set various battery management parameters such as single cell over- voltage, total battery over-voltage, charging over-current, discharging over- current, cell high and low temperature, environmental high and low temperature, equalization strategy, number of cells in series, battery capacity, etc. It can turn on and off the discharge MOS, charge MOS, current limit switch, buzzer alarm switch, forced sleep switch and online upgrade of system software.
Charging Current-limiting Function
With current limiting function, this product is passive 1 OA current limiting by default.
Hardware Voltage Detection Function
The BMS equipped with a unique hardware detection protection circuit. This ensures that the BMS can operate safely and reliably for long periods of time under abnormal conditions.
Historical Data Storage Function
With history record storage function, the storage capacity is not less than 500 records, which is convenient for system monitoring, analysis and maintenance.
Parallel Communication Function
Parallel communication function can be realized through RS485 interface, with a DIP switch for setting the address in parallel communication, and the upper computer can monitor the battery pack data cyclically after parallel connection.

Attachment: parameter accuracy requirements

Temperature	±2ºC
Voltage	±10mV(@0ºC-45 ºC); ±20mV(@-20ºC-ºC& 45 ºC-70ºC)
Current	±2%(Charge and discharge current above 50% range)
Capacity	±5%(Battery pack capacity above 50% range)
Temperature rise	55 “C(Continuous charge and discharge 100A

BMS Protection Parameters

Function Name	Function Name	Parameters	note

Single cell
voltage alarm| Over-voltage alarm| 3640mV|
Under-voltage alarm| 2650mV|
Single cell over-voltage protection| Over-voltage
protection| 3750mV|
Over-voltage
protection delay| 3S|
Over-voltage
protection recovery| 3340mV|
Single cell
under-voltage
protection| Under-voltage
protection| 2500mV|
Under-voltage
protection delay| 3S|
Under-voltage
protection recovery| 3000mV|
Battery
voltage alarm| Over-voltage alarm| 57V|
Under-voltage alarm| 46V|
Battery
over-voltage
protection| Over-voltage
protection| 57 CV|
Over-voltage
protection delay| 35|
Over-voltage
protection recovery| 54.6V|
Battery
under-voltage
protection| Under-voltage
protection| 43.2V|
Under-voltage protection delay| 3S|
Under-voltage
recovery| 51.2V|
Cell temperature alarm| High temperature
charging alarm| 50 C|
---|---|---|---
Low temperature charging alarm| 0 C|
High temperature discharge alarm| 50 C|
Low temperature
discharge alarm| OC|
Cell charge temperature| High temperature charging protection| 60C|
High temperature charging recovery| 50 C|
Low temperature
charging protection| -5 C|
Low temperature charging recovery| OC|
Cell discharge temperature| High temperature
discharge protection| 65C|
High temperature discharge recovery| 50 C|
Low temperature
discharge protection| -10 C|
Low temperature discharge recovery| OC|
Ambient
temperature alarm| Environmental high temperature alarm| 50 C|
Environmental
low temperature alarm| 0 C|
MOS high
temperature alarm| MOS high
temperature alarm| 90 C|
Charging
over-current alarm| Charge alarm current| 100A|
Charging
over-current protection| Charge
protection current| 105A|
---|---|---|---
Charge protection delay| 4S|
Discharge
over-current alarm| Discharge alarm current| 100A|
Discharge
over-current protection| Discharge
protection current| 105A|
Discharge
over-current delay| 5S|
Secondary discharge
over-current protection| Secondary
protection current| 120A|
Secondary
over-current delay| SOOmS|
Output short
circuit protection| Short circuit
protection current| 300A|
Short circuit
protection delay| 300uS|
Short circuit
protection release| 1. Detect the effective charging current

2. Retest every 1min, will lock after 3 consecutive attempts

|
Automatic recovery of discharge current| Automatic
recovery delay| Automatic
recovery after lmin| lmin automatic
recovery attempt,
will be locked
after 3 consecutive
attempts,
can be recovered
by manual or
charging

Charge and Discharge

Charging

Only charge the battery with a battery charger (57.6V) or charge controller that is compatible with lithium iron phosphate batteries. For charging current, please check the battery specification in this manual according to the product model.
DO NOT exceed the maximum charge current to the battery.
Fully charge the battery before first use.
If you want to know the capacity of battery, please check the SOC indicator on the battery panel.
LiFePO4 does not suffer a “memory effect” so please keep the battery fully charged for daily use.
Do not charge the battery at temperatures below 0°C. This can cause damage to the battery cells.

Discharging

Make sure your load accepts 51.2V nominal voltage. DO NOT exceed the maximum discharge current to the battery.
Ensure the connection between the battery and the load can handle the current draw. Please consult references for the appropriate wire type.
DO NOT connect large loads to the battery when it is running low.
The battery output voltage is 51.2V, operating voltage range 43.2V – 57.6V, do
NOT rely on voltage as an indicator of remaining capacity.
If the battery shuts off due to a low state of charge (Soc), please disconnect the battery from the discharge equipment to eliminate potential parasitic loads and charge the battery as soon as possible. Failure to do so may cause irreversible damage to the battery.

Load Power

1 battery, support load rated power ≤5KW 2-4 batteries parallel, support load rated power ≤5KW, or 6KW high-power discharge ≤ 1 hour
If your load power exceeds 6KW, please contact our technical support

Series and Parallel Connection

Before connecting, each battery must be independtly fully charged. Please make sure that the voltage of each battery is within 0-0.3V after subtraction before connecting in parallel.
This model can be connected with up to 16 units 51.2V100Ah batteries in parallel.
Please DO NOT STRING THE BATTERY IN SERIES.
– Parallel Connecting Total voltage and capacity: 51.2V 1600Ah;
If you need more batteries in parallel. Please contact our customer service and we will give you professional guidance.
Dos

Before making any connections, make sure to charge each battery up to 57.6V with a proper lithium charger. ALL BATTERIES SHOULD BE AT THE SAME STATE OF CHARGE PRIOR TO CONNECTING, otherwise you will encounter balance issues within your system.
All cables and connections must be able to accommodate the high currents that can be delivered by the battery. Appropriate fuses and circuit breakers are highly recommended to protect downstream components from current spikes and short circuits.
In parallel battery banks, the cables between each battery should be of equal length to ensure that all batteries in the system can work equally together.
To string multiple batteries in parallel, first connect the positive terminals of batteries to each other. Then do the same with the negative terminals . Finally, connect the positive and negative terminals of the first battery to the system. This type of arrangement is used to increase the overall battery capacity while keeping the voltage the same. 4. Don’ts.
DO NOT string batteries with different chemistries, models, rated capacity in series or parallel.
DO NOT connect batteries in series.

Maintain and Store

Maintain: Our Batteries require very little maintenance. If your batteries are in series and not being charged by a multi-bank charger it is recommended that you fully charge the batteries individually once every three months if the system is used frequently. This will internally balance your batteries to ensure that they will reach their expected life span and allow you to get the full power out of them with each use. If your batteries are in parallel this is not necessary, just make sure the batteries are charged to 56V -57.6V for internal balance. Our BMS has a built-in passive balancing system that will take care of this for you.
Store: We recommend bringing the batteries to a 100% state of charge. Then, disconnect the battery from any loads by removing the negative cable from one battery. On average, the batteries lose approximately 2-3% capacity per month. This is subject to increase if stored in extreme environmental conditions.
The battery stored for a long time (more than 2 months) should be kept in a dry and cool place.

Warranty and Warranty Exclusions

We’re dedicated to making the most reliable batteries on the planet. But we understand that things happen, so if anything is wrong with your product, we’ll work to make it right.

Battery >5120 Wh, 8-Year Limited Warranty.
This warranty applies to only the original owner and is void if the product is used commercially, structurally altered, subjected to stress beyond the physical limits of the materials used in the body or components, or is damaged as a result of abnormal use. Punctures and normal wear and tear are not warranted.

NON-TRANSFERABLE
This Limited Warranty is to the original purchaser of the Product and is not transferable to any other person or entity. Please contact the place of purchase regarding any warranty claim.

WARRANTY EXCLUSIONS
The Manufacturer has no obligation under this Limited Warranty for Product subjected to the following conditions (including but not limited to):

Damage due to improper installation; loose terminal connections, under-sized cabling, incorrect connections (series and parallel) for desired voltage and AH requirements, or reverse polarity connections.
Environmental damage: inappropriate storage conditions as defined by the Manufacturer; exposure to extreme hot or cold temperatures, fire or freezing, or water damage.
Damage caused by collision.
Damage due to improper maintenance, under or over-charging the Product, dirty terminal connections.
Product that has been opened, modified, or tampered with.
Product that was used for applications other than which it was designed and intended for, including repeated engine starting.
Product that was used on an over-sized inverter/charger without the use of a Manufacturer-approved current surge limiting device.
Product that was under-sized for the application, including an Air Conditioner or similar device having a locked rotor start up current that is not used in conjunction with a Manufacturer-approved surge-limiting device.
Product not stored in adherence to the Manufacturer’s storage guidelines, including storage of the Product at a low state-of-charge. This Limited Warranty does not cover a Product that has reached its normal end of life due to usage which may occur prior to the Warranty Period. A battery can deliver only a fixed amount of energy over its life which will occur over different periods of time depending on the application. The Manufacturer reserves the right to deny a warranty claim if the Product is determined, upon inspection, to be at its normal end of life even if within the Warranty Period.

Return & Refund

Aolithium works hard to ensure a positive shopping experience with us. We’re bummed if you’re not 100% satisfied with the items you received, and we gladly accept returns within 30 days of receipt for most items in new condition.
If an item is new, unused, and in the original packaging, we are happy to accept a return up to 30 days from the original invoice date with no restocking fee. If the item has been installed, used, or no longer has the original packaging, we will assess a restocking fee that will be shared when the return merchandise authorization (RMA) is issued.
Please note that Aolithium will not accept returns with product modifications as it voids our warranty policy. Any modified products received will be returned to you at your expense.
All returns must include the following:
Copy of receipt or invoice
Video or photo of the faulty product (if applicable)
Mailing address
Contact telephone number
Return Shipping Method

Please send email us to get your RMA number.
We will email you with your RMA number as soon as we can. After receiving return instructions from us, please package up the item(s) to be returned with the original packing.
Drop off your package at the local post office.
Most returns are processed within 5 business days after we receive your package. An email will be sent when your return is processed.
If you have any questions about our battery, Please feel free to let us know.
Email: service@aolithium.com.

Shipping

We’ve partnered with FedEx to offer free ground shipping on any order that is delivered to the continental U.S. We ask for a direct signature on orders with FedEx ground to ensure your product has safely reached your final destination.
Shipping to Alaska and Hawaii is available, and shipping quotes can be provided upon request.
International shipments are available via a US-based freight forwarder, but all additional charges are the responsibility of the customer, including duties, taxes, freight, and any potential warranty return.