SAJ B1 Series User manual

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B1 Series
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Content
CHAPTER 1 SAFETY PRECAUTIONS .................. - 2 -
1.1 SAFETY INSTRUCTIONS ..................................... - 2-
1.2 EXPLANATIONS OF SYMBOLS ................................. - 4-
1.3 EMERGENCY SITUATION ..................................... - 5-
CHAPTER 2 PRODUCT INTRODUCTION ............... - 7 -
2.1 APPLICATION SCOPE OF PRODUCTS ............................ - 7-
2.2 SPECIFICATION FOR PRODUCT MODEL .......................... - 7-
2.3 DATASHEET .............................................. - 8-
CHAPTER 3 INSTRUCTIONS FOR INSTALLATION ...... - 9 -
3.1 ITEMS IN THE PACKAGE ..................................... - 9-
3.2 INSTALLATION POSITION ................................... - 10 -
3.3 MOUNTING PROCEDURE.................................... - 12 -
CHAPTER4 ELECTRICAL CONNECTION ............. - 16 -
4.1 SPECIFICATIONS FOR ELECTRICAL INTERFACE ................... - 16 -
4.2 SLAVE CONNECTION....................................... - 17 -
MAKE SURE THAT THE CIRCUIT BREAKER IS OFF,REMOVE THE RIGHT WIRING
COVER SCREW AND PULL OUT THE BMS SWITCH CABLE THEN PLACE THE COVER
ASIDE..................................................... - 17 -
4.3 COMMUNICATION INTERFACE................................ - 18 -
4.4 INSTALL THE RIGHT COVER.................................. - 20 -
4.5GROUND CONNECTION..................................... - 20 -
CHAPTER 5 DEBUGGING INSTRUCTIONS ............ - 21 -

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CHAPTER 6 BATTERY MAINTENANCE ............... - 21 -
6.1 TRANSPORTATION......................................... - 21 -
6.2 STORAGE ............................................... - 22 -
CHAPTER 7 CONTACT SAJ .......................... - 24 -
WARRANTY CARD.................................. - 25 -
Chapter 1 Safety Precautions
The User Manual describes system configuration and detailed procedures for
installation, operation and maintenance of B1 Series Inverter Battery. However,
this manual does not include any information about inverters that the battery may
be applied to. Please read 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.
WARNING

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·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.
CAUTION
·Do not modify or change any components in the battery.
·Risk of damage due to improper modification

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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.
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 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 strict and professional protection design against any hazard results,
damage of the battery may still occur. 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 and evacuate the
crowd immediately.

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Potential danger of damaged battery:
Chemical Hazard: Despite of its strict and professional protection design
against any hazard results, rupture of battery shall may still occur due to
mechanical damage, internal pressure and 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 eternally 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 3 parallel devices. B1 battery is also called slave machine in the
following text.
Figure 2.1 B1 outside overview
2.2 Specification for Product Model
B1 –XX –XX
①②③
B1 represents for product name.
XX represents total energy capacity XXKWh，e.g, 5.1 means 5.1kWh.
XX represents voltage grade ，for 48 means 48V

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2.3 Datasheet
B1-5.1-48
Type
B1-5.1-48
Electrical Characteristics
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
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
mounting bolts set *6
Cables
Ethernet cable&RJ45 plug
User Manual

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3.2 Installation Position
3.2.1 The battery dimensions shown as follows
186
410
650
Figure 3.1 B1-5.1-48 External view and dimension
3.2.2 Installation Position
This device is cooled by natural convention and an indoor installation is
recommended or an installation under a sheltered place to prevent the battery from
exposure to direct sun, rain and snow erosion.
Figure 3.2 Mounting Method

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3.2.3 Mounting Method
A vertical mounting is recommended and the battery accepts tilted backwards by
max.15°. Never mount the battery horizontally or upside down.
√ √
× × ×
Figure 3.3 Mounting method
Please make sure the battery pack is at all times exposed to the air. Poor air
circulation will affect the performance of internal electronic components and
shorten the service life of battery.
50CM
50CM 50CM
0CM 0CM

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Figure 3.4 Installation position
3.3 Mounting Procedure
3.3.1 Positioning the drilled holes for bracket
The battery B1 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 (Slave machine)
Make sure that the wall is capable of mounting screws and supporting the weight
of the battery pack before installation. Mark the location of bracket's holes on the
wall and drill the holes. Then use a rubber hammer to drive screws into the holes.
Figure 3.6 Bracket for B1-5.1-48 (Slave Machine)
AS1-3KS-5.1 is a master machine and B1-5.1-48 is a slave machine. To ensure the

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installation of the device is successful, the distance between master and slave
machine, slave and slave machine shall at least meet the following requirements:
Figure 3.7 Distance between brackets

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Fix the brackets in the marked position with hex screws。
Figure 3.8 Mounting the brackets
During installation of the device, please install the slave machines first then the
master machines, in order to avoid a failure of installation due to a lack of space
between the master machine and the salve machines. Carefully mount the device
onto the brackets and make sure the bottom of the device is attached to the
brackets.

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Figure 3.9 Installation of the master and slave machines
One master machine can be matched with up to three more batteries. During the
installation of the project, it is necessary to consider whether space shall be
reserved to add new battery packs in the future. The expansion diagram is as
follows.
Figure3.10 Batteries Expansion Diagram

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Chapter4 Electrical Connection
4.1 Specifications for Electrical Interface
A
B
CE
D
c
d
e
Figure 4.1 B1-5.1-4 Interface
Code
Name
A
BMS switch
B
Battery switch
C、c
BAT+port
D、d
BMS LINK port
E、e
BAT-port
Table 4.1 Interface instruction

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4.2 Slave connection
Make sure that the circuit breaker is off, remove the right wiring cover screw
and pull out the BMS switch cable then place the cover aside.
Figure 4.2 Removing wiring cover
Remove the flange nut head counterclockwise, and remove it when there is a hole
plug, as shown in the figure below. Then pass the original cable through the
waterproof jacket.
Figure 4.3 Threading diagram

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Only 3 cables are required (BAT+-BAT, BAT--BAT-, LINK-LINK) to connect a
slave. Be careful when connecting. Do not reverse the positive and negative
terminals.
Figure 4.4 Connection diagram
4.3 Communication interface
Take out the Ethernet cable from the battery packaging.
Note: Pass the cable through the waterproof jacket firstly and then crimp the RJ45
plug.

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Figure 4.5 Interface definition
Code
Name
1
blank
2
blank
3
blank
4
blank
5
blank
6
blank
7
RS485A
8
RS485B
Table 4.2 Interface pin description
Attention
·Please use the original matching battery cable
·Do not connect one B1 battery to two inverters at the same time
·The waterproof sheath must be tightened after wiring to prevent rain water
from entering the interior