PowerWalker LiFe Battery System 48-100 User manual

LiFe Battery System
48-100
Version: 1.1
User Manual

Table of Contents
1. Safety Precautions............................................................1
1.1Before Connecting .......................................................2
1.2In Use ........................................................................2
2. Introduction .....................................................................3
2.1Features .....................................................................3
2.2Package Contents ........................................................4
2.3Specifications ..............................................................5
2.4Product Indicator & Setting ..........................................6
3. Installation..................................................................... 10
3.1Installation Environment ............................................ 10
3.2Mounting the Modules ............................................... 11
3.3 Wiring Configuration ................................................. 15
3.4 Wiring Diagrams of Diverse Applications..................... 20
4. Start-Up/Shut-Off the Battery Module .............................. 24
4.1 Start up the battery module ...................................... 24
4.2 Shut-off the battery module....................................... 24
5. Trouble Shooting............................................................. 25

1
Thank you for purchasing the LiFe Battery System 48-100 Lithium battery
module. Please read this manual before you install the battery. Follow the
instruction carefully during the installation process.
1. Safety Precautions
Reminder
1). It is very important and necessary to read the user manual carefully
before installing or using the battery. Failure to do so or to follow any of
the instructions or warnings in this document can result in electrical
shock, serious injury, or death, or can damage the battery, potentially
rendering it inoperable.
2) If the battery is stored for a long time, it is required to charge them every
six months, and the SOC should be no less than 90%;
3) Battery needs to be recharged within 12 hours, after fully discharged;
4) Do not expose cable outside;
5) All the battery terminals must be disconnected for maintenance;
6) Do not use cleaning solvents to clean the battery;
7) Do not expose battery to flammable or harsh chemicals or vapors;
8) Do not paint any part of the battery, include any internal or external
components;
9) Do not connect the battery with PV solar wiring directly;
10) The warranty claims are excluded for direct or indirect damage due to
the items above.
11) Any foreign object is prohibited to insert into any part of the battery.

2
Warning
1.1 Before Connecting
1) After unpacking, please check the product and packing list first, if the
product is damaged or missing parts, please contact the local retailer;
2) Before installation, be sure to cut off the grid power and make sure the
battery is in the turned-off mode.
2) Wiring must be correct. Do NOT misconnect the positive and negative
cables, and ensure no short circuit with the external device.
4) It is prohibited to connect the battery and AC power directly.
5) The embedded BMS in the battery is designed for 48VDC, please DO NOT
connect the battery in series.
6) Please ensure the electrical parameters of the battery system are
compatible with related equipment.
7) Keep the battery away from water and fire.
1.2 In Use
1) If the battery system needs to be moved or repaired, the power must be
cut off and the battery is completely shutdown
2) It is prohibited to connect the battery with a different type of battery
3) It is prohibited to put the batteries working with faulty or incompatible
inverter;
4) It is prohibited to disassemble the battery (QC tab removed or
damaged);
5) In case of fire, only dry powder fire extinguisher can be used, liquid fire
extinguishers are prohibited.
6) Please do not open, repair, or disassembly the battery except staff
authorized. We do not undertake any consequences or related
responsibility which because of violation of safety operation or violating of
design, production, and equipment safety standards.

3
2. Introduction
LiFe Battery System 48-100 are lithium iron phosphate battery modules
for energy storage. It is designed to integrate with reliable inverters.
It has a built-in smart BMS battery management system, which can manage
and monitor cells’ information including voltage, temperature, current, etc.
Moreover, BMS can balance cells charging and discharging to extend cycle
life. Battery modules can be used alone or in parallel, to expand capacity for
different requirements.
PV Modules
Battery Modules
Public Grid
Inverter
Home Appliances
2.1 Features
Non-Toxic, non-polluting, and friendly to the environment.
LiFeO4 cell material, safety performance, and long cycle life.
Smart BMS protection functions: over-discharge, high temperature,
over-charge, over-current.
Flexible configuration, multiple battery modules can be easily stacked
and added for energy expansion.
Working temperature range is from 0°C to 50°C with excellent
discharge performance and cycle life.

4
Expansion Bolt
M10 (x4)
Fixing Plates for
Stand feet
(Left x1, Right x1)
SNAP bushing
(x2)
2.2 Package Contents
The packaging is recyclable, save it for reuse or dispose of it properly.
Battery Module Manual Stand Feet (x2)
L-type Brackets (x2) Fixing Plates (x2) Screws (x20)
External Battery connectors RJ45 cable RJ11 cable RJ11 Jumper
(BAT+ x2, BAT- x2)
PDU module can be purchased separately. Following contents will be
included in its separately package:
PDU Module Cable Gland (x2)

5
2.3 Specifications
Model
LiFe Battery System / Module
Capacity (Wh)
5120 Wh
PARAMETERS
Nominal Voltage
51.2 VDC
Typical Capacity(Ah)
100 Ah
Full Charge Voltage
(FC)
56 V ± 0.1 V
Full Discharge
Voltage (FD)
42 V
Max. Continuous
Discharge Current
150 A
Max. Peak Discharge
Current
192 A at 1min
Protection
BMS, Breaker
Max. Charge Voltage
52.5 V ± 0.1 V
Max. Charge Current
100 A
Standard Charge
Method
0.2C CC (Constant Current) charge to FC, CV
(Constant Voltage) charge till charge current
decline to <0.05C
Inner Resistance
≤20mΩ
Storage Temperature
-20ºC ~ 60 ºC
20°C±5°C is the recommended storage
temperature
Dimension
(D x W x H) mm
185 x 540 x 420
Dimension with stand
feet
(D x W x H) mm
185 x 540 x 530
Net Weight (kg)
48
Operation
Temperature
Charge : 0ºC ~ 50 ºC
Discharge : 0ºC ~ 50 ºC
Communication
RS485 (RJ45), extension port (RJ11)
Certifications
UN38.3, IEC 62619

6
2.4 Product Indicator & Setting
23
6
5
4
1
7
+-
+-
LED4 LED3 LED2 LED1
1
Manual power on/off button - to wake up or shut down the battery
module.
If battery module is off, press and hold the button over 5 seconds
to turn on the module.
If battery module is working, press and hold the button for
approximately 5 seconds to shut down the module.
2
Battery Level LEDs - Indicates battery level. Please refer to the LED
indicator table for the details.
3
Battery Status LEDs - Indicates battery module status. Please refer to
the LED indicator table for the details.

7
LED Indicator:
Battery Status
Battery Status
LEDs
Battery Level LEDs
Status SOC ON ALARM LED1 LED2 LED3 LED4
Normal
Mode
Charging
0%~25% ON OFF Flash OFF OFF OFF
26%~50% ON OFF ON Flash OFF OFF
51%~75% ON OFF ON ON Flash OFF
76%~100% ON OFF ON ON ON Flash
Discharging
0%~25% ON OFF ON OFF OFF OFF
26%~50% ON OFF ON ON OFF OFF
51%~75% ON OFF ON ON ON OFF
76%~100% ON OFF ON ON ON ON
Alarm
mode
Warning - OFF Flash -
Fault - OFF ON -
Power Off - OFF OFF OFF OFF OFF OFF
4
External Battery Connector
There are two sets of battery connectors in parallel. Positive terminals are
marked in ”BAT+” and Negative terminals are marked in “BAT-”.
5
RS485 Port (BMS Communication Port)
Connector type: RJ45
Function: communication between battery module and inverter
module.

8
Pin Definition:
PIN
Definition
1
RS485B
2
RS485A
3
NC2
4
RS485B
5
RS485A
6
PresentA
7
PresentB
8
NC1
6
Extension Port
Connector type: RJ11
Function: BMS signal transmission for battery module and for
battery capacity extension in parallel.
Pin Definition
PIN
Definition
1
CANH
2
CANL
3
PresentA
4
PresentB
5
NC
6
NC

9
7
ID Switch
ID Switch indicates the unique ID code for each battery module.
It's required to assign a unique ID to each battery module for
normal operation.
We can set up the ID code for each battery module by rotating
the PIN number on the ID switch. From number 0 to 9, the
number can be random; no particular order.
If more than one battery module in the parallel system, the
battery pack connected to the inverter module is the Master
battery and the ID code should be set as 0. The ID code of the
remaining battery module MUST be unique. Do not set the same
number for 2 battery modules in the parallel system.
Maximum 10 battery modules can be operated in parallel.
PIN
Definition
0
0x0F
1
0x0E
2
0x0D
3
0x0C
4
0x0B
5
0x0A
6
0x09
7
0x08
8
0x07
9
0x06

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3. Installation
3.1 Installation Environment
Make sure that the installation environment meets the following conditions:
The area is completely waterproof.
The floor is flat and level.
There are no flammable or explosive materials nearby.
The ambient temperature is within the range of 0~50°C.
The temperature and humidity are maintained at a constant level.
There is minimal dust and dirt in the area.
Caution:
If the ambient temperature is out of the operating range, the battery
module will stop operate to protect itself. The optimal temperature range for
the battery module to operate is 0°C to 50°C. Frequent exposure to harsh
temperatures may deteriorate the performance and shorten the life cycle of
the battery module.

11
3.2 Mounting the Modules
Step 1: Clip two SNAP bushings into the stand feet. Then, fix two fixing
plates on the stand feed (both sides) with eight screws. finally, fix two L-
type brackets on the battery module (both sides) with four screws.
Step 2: Install one battery module by following below steps.
(a) Use a Ø13mm drill to drill holes about 60mm deep according to the
distance indicated on the below chart. Drill two holes on the floor first,
then drill two holes on the wall. If there is one more battery module to
be stacked up, drill two holes at a vertical distance of 420mm.
583
.
00
mm
85
.
00
mm
85
.
00
mm
612
.
5
mm
612
.
5
mm
420
.
00
mm
410
.
00
mm
Floor
Wall

12
(b) Push four expansion bolts into the Ø13mm holes drilled on the previous step.
(c) Remove nut, spring washer and flat washer.
(d) Take assembled battery module (in step 1) and put on the ground. Align the
hole on fixing plate with the two expansion bolts on the ground. Align the hole
on L-type bracket with two expansion bolts on the wall. Pass through the
remaining bolt in the floor and wall. Then, screw back the nut, spring washer,
and flat washer

13
Step 3 (If more than one battery module is connected):
For a single battery module connection, please skip this step! If more than
one battery module is connected, please follow the instructions below:
(a) Put the additional battery module on the top of battery module
installed on the ground. Make sure they are aligned well.
(b) Install one fixing plate to fix two battery modules with four
screws as following the picture shown.

14
(c) Follow the same procedure as step (b) to fix the other side.
(d) Refer to Step 2, fix the top battery module on the wall with two
expansion bolts.
(e) If there are more battery modules installed, repeat steps (a) to
(d).
Step 4 (If an optional PDU module is required in the system): Stack
the PDU module on the top of all battery modules. Install two fixing plates
(supplied in PDU module package) on both sides of the modules with eight
screws.

15
3.3 Wiring Configuration
Step 1: Insert the supplied RJ11 jumper into one of the extension port on
the top of the battery module.
*It's required to connect to the battery module for normal operation.
RJ11 Jumper
BAT+ BAT-
BAT+ BAT-

16
Master battery module
#1 #2 #10
Step 2 (If multiple battery modules are in parallel): Insert RJ11 cable
to connect the extension port of the master battery module*. The other end
connects to the extension port of the #2 battery module. If there are more
battery modules are connected in the system, repeat this step to connect
more battery modules.
Caution:The battery module connected to the power module is the Master
battery and the ID code should be set as 0.
BAT+BAT-
BAT+BAT-
BAT+BAT-
BAT+BAT-
BAT+BAT-
BAT+BAT-
RJ11 Jumper
···
RJ11 cable RJ11 cable

17
Step 3: Insert the supplied RJ45 cable into the RJ45 communication port on
the master battery module. The other end connects to BMS communication
port on the inverter module.
Caution: “BAT” and “INV” are marked on the RJ45 cable. Make sure
connect the battery module and inverter module with correct end.
Inverter
BAT+
The end connectsto
inverter module
The end connects to
battery module
Master battery module
Caution: CAUTION: If more than one battery modules are connected for
capacity extension, the battery module connected to inverter module directly
will be defined as "Master battery module". Be sure to set ID number for
Master battery module as "0".

18
Step 4: Please follow below steps to prepare battery cable with supplied
external battery connectors. The cable length should be prepared based on
the real distance between battery module and inverter module.
The recommended cable size is listed as below:
Wire Size
Cable mm
2
1*4AWG 25
(a) Loosen and disassemble the plug of the supplied battery connector.
(b) Insert the battery cable through the tunnel and housing, and strip
battery cable 11.5±0.2mm.
11.5±0.2
(c) Crimp the cable and the plug with a proper crimping tool (ex.
hydraulic clamp) together into a hexagon shape as shown in below
chart. Then, move the housing toward plug and tighten them.
7.8±0.1