SAJ B1 Series User manual

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B1 Series
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Content
CHAPTER 1 SAFETY PRECAUTIONS......................................- 3 -
1.1 SAFETY INSTRUCTIONS....................................................................- 3-
1.2 EXPLANATIONS OF SYMBOLS...........................................................- 5-
1.3EMERGENCY SITUATION...................................................................- 6-
CHAPTER 2 PRODUCT INTRODUCTION.................................- 8 -
2.1 APPLICATION SCOPE OF PRODUCTS.................................................- 8-
2.2 SPECIFICATION FOR PRODUCT MODEL..............................................- 8-
2.3 DATASHEET ....................................................................................- 9-
CHAPTER 3 INSTRUCTIONS FOR INSTALLATION...............- 10 -
3.1 ITEMS IN THE PACKAGE..................................................................- 10 -
3.2 INSTALLATION POSITION ................................................................ - 11 -
3.3 MOUNTING PROCEDURE................................................................- 13 -
CHAPTER4 ELECTRICAL CONNECTION ..............................- 17 -
4.1 SPECIFICATIONS FOR ELECTRICAL INTERFACE ................................- 17 -
4.2 BATTERY CONNECTION..................................................................- 18 -
4.3 COMMUNICATION INTERFACE .........................................................- 26 -
4.4 INSTALL THE RIGHT COVER ............................................................- 27 -
4.5GROUND CONNECTION..................................................................- 27 -
CHAPTER 5 COMMISSIONING INSTRUCTIONS ...................- 28 -
CHAPTER 6 BATTERY MAINTENANCE .................................- 28 -
6.1 TRANSPORTATION .........................................................................- 28 -
6.2 STORAGE .....................................................................................- 28 -

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CHAPTER 7 CONTACT SAJ ....................................................- 30 -
WARRANTY CARD...................................................................- 31 -

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Chapter 1 Safety Precautions
The User Manual describes system configuration and detailed procedures
for installation, operation and maintenance of B1 Series Battery. However,
this manual does not include any information about inverter that the battery
may be applied to. Please read through the User Manual before using this
product.
1.1 Safety Instructions
DANGER
·Do not expose the battery to temperatures in excess of 45°C.
·Do not subject the battery to any strong force.
·Do not place the battery near a heat source, such as direct sunlight, a fireplace.
·Keep inflammable and explosive dangerous items or flames away from the
battery.
·Do not soak the battery in water or expose it to moisture or liquids.
·Do not use the battery in vehicles.
·Do not use the battery in areas where the ammonia content of the air exceeds
20ppm.
WARNING
·Only qualified personnel who has full knowledge of local safety regulations and
local standards on battery can install, maintain, retrieve and process this product.
·SAJ electric shall not be liable for any loss or warranty claims arising from any
unauthorized change of product which may cause fatal injury to the operator, third
party or equipment performance.
·For personal and property safety, do not short-circuit the positive (+) and negative
(-) electrode terminals.
·Do not use the battery if it has been damaged.
CAUTION

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·Do not modify or change any components in the battery.
·Risk of damage due to improper modification
NOTICE
·During installation of the battery B1, circuit breaker must be disconnected from the
battery pack wiring.
·The battery B1 can only be used as a set with SAJ's AS1 and H1 series storage
inverter, otherwise it cannot be used normally.

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1.2 Explanations of Symbols
Symbol
Description
Dangerous electrical voltage
The device is directly connected to public grid, thus all work
to the battery shall only be carried out by qualified
personnel.
No open flames
Do not place or install near flammable or explosive
materials.
Danger of hot surface
The components inside the device will release a lot of heat
during operation. Do not touch metal plate housing of the
inverter and battery during operating.
Attention
Install the product out of reach of children
An error occurred
Read the usage manual to troubleshoot problems
This device SHALL NOT be disposed of in residential
waste
Please go to Chapter 8 “Recycling and Disposal” for proper
treatment.
CE Mark
The device is in compliance with Low Voltage Detective
and Electromagnetic Compatibility.
Recyclable

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1.3 Emergency situation
Despite of its careful and professional protection design against any
hazards, damage of the battery may still possible. If a small amount of
battery electrolyte is released due to a serious damage of the outer casing;
or if the battery explodes due to not being treated timely after a fire breaks
out nearby, and leaks out poisonous gases such as carbon monoxide,
carbon dioxide and etc., the following actions are recommended:
1）Eye contact: Rinse eyes with a large amount of running water and
seek medical advice
2）Contact with skin: Wash the contacted area with soap thoroughly
and seek medical advice
3）Inhalation: If you feel discomfort, dizziness or vomiting, seek medical
advice immediately.
4）Use a FM-200 or Carbon Dioxide (CO2) fire extinguishers to
extinguish the fire if there is a fire in the area where the battery pack is
installed. Wear a gas mask and avoid inhaling toxic gases and harmful
substances produced by the fire.
5）Use an ABC fire extinguisher, if the fire is not caused by battery and
not spread to it yet.
Warning
·If a fire has just occurred, try to disconnect the battery circuit breaker and cut off
the power supply first, but only if you can do so without endangering yourself.
·If the battery is on fire, do not attempt to extinguish the fire but evacuate the crowd
immediately.

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Potential danger of damaged battery:
Chemical Hazard: Despite of its careful and professional protection
design against any hazard results, rupture of battery may still occur due to
mechanical damage, internal pressure etc., and may result in a leakage of
battery electrolyte. The electrolyte is corrosive and flammable. When there
is fire, the toxic gases produced will cause skin and eyes irritation, and
discomfort after inhalation. Therefore:
1) Do not open damaged batteries;
2) Do not damage the battery again (shock, fall, trample, etc.);
3) Keep damaged batteries away from water (except to prevent an
energy storage system from catching fire);
4) Do not expose the damaged battery to the sun to prevent internal
heating of the battery.
Electrical hazard: The reason of fire and explosion accidents in lithium
batteries is battery explosion. Here are the main factors of battery
explosion:
1) Short circuit of battery. Short circuit will generate high heat inside
battery, resulting in partial electrolyte gasification, which will stretches the
battery shell. The temperature reaching ignition point of internal material will
lead to explosive combustion.
2) Overcharge of battery. Overcharge of battery may precipitate
lithium metal. If the shell is broken, it will come into direct contact with the air,
resulting in combustion. The electrolyte will be ignited at the same time,
resulting in strong flame, rapid expansion of gas and explosion.

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Chapter 2 Product Introduction
2.1 Application Scope of Products
The battery B1 is applied to domestic photovoltaic storage system. The
battery is built internally with a battery management system (BMS), which is
used to ensure efficiency of the battery and to avoid phenomena of
overcharge or over-discharge. The battery employs modular design for easy
installation and wiring, and can be used by up to 8 parallel devices. B1
battery is also called slave machine in the following text.
Figure 2.1 B1 exterior overview
2.2 Specification for Product Model
B1 –XX –XX
①②③
○
1B1 represents for product name.
○
2XX represents total energy capacity XXKWh，for instance, 5.1 means 5.1kWh.
○
3XX represents voltage grade，for 48 means 48V.

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2.3 Datasheet
B1-5.1-48
Type
B1-5.1-48
Electrical Parameters
Total Energy Capacity[Wh]
5120
Usable Capacity [Wh]
4600
Rated Voltage [V]
51.2
Voltage range [V]
42~58.4
Depth Of Discharge[DOD]
≤90%
Cycle Life
≥6000
Max.Charge Current [A]
60
Max.Discharge Current [A]
60
Physical Parameters
Battery Type
Lithium-ion phosphate (LiFePO4)
Communication
CAN
Operating Temperature Range
0°C~50°C
Cooling Method
Natural Convection
Ambient Humidity
0-95% Non-condensing
Ingress Protection
IP65
Dimensions[H*W*D][mm]
410*650*186
Weight [kg]
48
Standard Warranty [Year]
5(Standard)/10(Optional)
Applicable Standard
UN38.3、IEC62619

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Chapter 3 Instructions for installation
3.1 Items in the package
Battery pack
Wall bracket
6* Hexagon head
wood screws;
6* Screw Fixing
Holders;
6* Washer
2* Power
cables
1* Ethernet cable&
2* RJ45 plug
1* User
Manual

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3.2 Installation Position
3.2.1 The battery size shown as follows
比例 1.000
650
410
186
Figure 3.1 B1-5.1-48 exterior and dimension
3.2.2 Installation Position
This device is cooled by natural convention and suggested an indoor
installation or an installation under a sheltered place to prevent the battery
from exposure to direct sunlight, rain and snow erosion.
Figure 3.2 Mounting location

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3.2.3 Mounting Method
A vertical mounting is recommended and the battery accepts backwards tilt
by max.15°. Never mount the battery horizontally or upside down.
√ √
× × ×
Figure 3.3 Mounting method
Please ensure a good air circulation at the installation area. Because poor
air ventilation will affect the working performance of internal electronic
components and shorten the service life of the system.
50CM
50CM
50CM
50CM 50CM
Figure 3.4 Installation position

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Note: When installing outdoors, the height of the battery from the ground
should be considered to prevent the battery from soaking in water. The
specific height is determined by the site environment.
3.3 Mounting Procedure
3.3.1 Positioning the drilled holes for bracket
The battery uses free-standing installation and its position is determined by
the drilled holes of bracket，Unit: mm.
Figure 3.5 Bracket for B1-5.1-48
Make sure that the wall is capable of mounting screws and supporting the
weight of the battery pack before installation. Mark the proper positions of
mounting bracket and drill holes on those positions (8mm in diameter,
50mm in depth) by using the mounting bracket as a template, and then use
a rubber hammer to drive the screw fixing seat into the holes to fix the
bracket.

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Figure 3.6 Bracket for B1-5.1-48
Fix the brackets in the marked position with hex screws.
Figure 3.7 Mounting the brackets
Please be careful when installing the device. First remove the nut from the
waterproof cable gland, then reapply the cable gland, but do not tighten it,
tighten it after inserting the cable. The ports that do not require wiring should
remain in their original state.

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比例 1.000
Figure 3.8 Remove plug
Carefully mount the device onto the brackets and make sure the bottom of
the device is attached to the brackets.
Figure 3.9 Installation of the battery
When several pieces of battery use together and to ensure the completed
installation of the device, the clearance between bracket and bracket shall
at least meet the ≥115mm requirements. Maximum 8 batteries can be in
parallel. If equal or more than 5 batteries are connected in parallel, the
maximum number of batteries for one column is 4, the rest of the batteries

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must be connected in another column.
battery 1
battery 2
battery 3
battery 4
battery 8
battery 7
battery 6
battery 5
Figure 3.10 Clearance between brackets
In order to have a better connection, please confirm that the cable glands
whether have been removed before mounting. During batteries mounting,
please install them from bottom to top, i.e. install B1 No.4 firstly, B1 No.3
secondly, B1 No.2 thirdly then B1 No.1 (refer to fig 3.11). Same
installation sequence for the second column of batteries, i.e. B1 No.5> B1
No.6> B1 No.7> B1 No.8. At least 2 installers required at site.
Figure 3.11 Installation of batteries
No.1
No. 2
No. 3
No.4
No.8
No. 7
No. 6
No.5

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Chapter4 Electrical Connection
4.1 Specifications for Electrical Interface
A
B
CE
D
F
Figure 4.1 B1-5.1-48 Interface
Code
Name
A
BMS switch
B
Battery switch
C
BAT+port
D
BMS COMM port
E
BAT-port
F
Ground
Table 4.1 Interface instruction

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4.2 Battery connection
Make sure that the DC switch is OFF, remove the right wiring cover screws
and pull out the BMS switch cable then place the cover aside. Unplug the
battery switch cable carefully during dismantling.
Figure 4.2 Removing wiring cover
Lead power cables through the waterproof glands of the inverter and B1
respectively, make sure the cables are connected correctly (BAT+ of
inverter to BAT+ of B1, BAT- of inverter to BAT- of B1 and COMM of inverter
to COMM of B1, refer to wiring overview below). Do not reverse the positive
and negative terminals. Recommended DC cable conductor core section is
25mm2.
Wiring overview between battery and inverter
Figure 4.3 Single battery connection
B1-5.1-48
battery
BAT+
BAT-
COMM
B1-5.1-48
battery
BAT+
BAT-
COMM
Inverter
BAT+
BAT-
COMM

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Figure 4.3 Multiple batteries connection overview