Growatt Hope 5.5L-A1 User manual

Residential Energy Storage
Hope 5.5L - A1 Battery System
Version: 1.0
User Manual

About this Document
This document describes the installation, electrical connection, operation, commission,
maintenance and troubleshooting of Hope 5.5L-A1 Battery System (hereafter simply put Hope 5.5L).
Before installing and operating Hope 5.5L-A1, ensure that you are familiar with product features,
functions, and safety precautions provided in this document.

Table of Contents
1 Product Overview ............................................................................................................... 1
1.1 Product Description ........................................................................................................... 1
1.2 Appereance ...................................................................................................................... 1
1.2.1 Dimension (unit:mm) ..................................................................................................... 1
1.2.2 Introduction to the battery operation panel ......................................................................2
1.3 Function and Introduction ..................................................................................................4
1.4 Battery software upgrade .................................................................................................. 5
1.4.1 Upgrade via USB ............................................................................................................ 5
1.4.2 Through inverter remote upgrade ....................................................................................5
2 Safety ..................................................................................................................................6
2.1 Application ........................................................................................................................6
2.2 Safety Precautions ............................................................................................................ 6
2.2.1 Environment requirements ..............................................................................................6
2.2.2 Operation and Precautions ..............................................................................................7
2.3 Warning Labels ................................................................................................................. 7
2.4 Emergency Responses .......................................................................................................9
3 Storage and Transportation ............................................................................................. 10
3.1 Storage Requirements ..................................................................................................... 10
3.2 Transportation Requirement .............................................................................................10
4 Installation ....................................................................................................................... 11
4.1 Installation environment .................................................................................................. 11
4.2 Installation Required Tools ............................................................................................... 12
4.3 Check ............................................................................................................................. 12
4.3.1 Pre-installation Check ................................................................................................... 12
4.3.2 Check Packing List ........................................................................................................13
4.4 Installation ......................................................................................................................14
4.4.1 Battery Placement ........................................................................................................ 14
4.4.2 Communication line connection ..................................................................................... 14
4.4.3 Single battery installation ..............................................................................................15
4.4.4 Battery pack capacity expansion installation ................................................................... 17
4.4.5 Battery pack power expansion installation ......................................................................19
4.4.6 Battery pack capacity expansion and power expansion installation ...................................21
4.4.7 Stackable Installation with Bracket Support .................................................................... 23
5 Power on and off the Battery ........................................................................................... 24
5.1 Power On ....................................................................................................................... 24
5.2 Power off ........................................................................................................................24
6 Maintenance Guide ........................................................................................................... 25
6.1 Preparation .....................................................................................................................25
6.2 Battery Replacement ....................................................................................................... 25
6.3 System Failure Information List and Troubleshooting Suggestions ...................................... 25
7 Technical Specifications ................................................................................................... 27
Appendix 1 ........................................................................................................................... 28

1
1 Product Overview
1.1 Product Description
Each Hope 5.5L consists of 106Ah cells which form 51.2V voltage battery module and 16 serial
connection (1P16S). A single cluster can connect up to 12 batteries in parallel, and expand the
capacity to 60KWH. For meeting the needs of home storage power supply, batteries and inverters
combined to be home storage solar system. It has protection functions such as overcharge,
overdischarge, overcurrent, overtemperature, and short circuit. For serve customers properly, the
company has a big data background to facilitate after-sales maintenance, and equipped with APP
display function, remote upgrade function and U-disk upgrade function.
1.2 Appearance
Hope 5.5L consists of battery module (including cell and mechanical parts), battery management
system (BMS) as well as power and communication terminals. Product appearance is shown as below.
1.2.1 Dimension (unit:mm)
Figure 1：Battery size diagram

2
1.2.2 Introduction to the battery operation panel
Figure 2: Introduction to the battery operation panel
Location
Port
Function
1
ON/OFF
Turn the battery on and off
2
ALM
Display battery alarm status
3
RUN
Display running status
4
SOC
Display battery SOC status
5
LINK-In/LINK-Out
Link-out for multi-cluster in parallel communication;
Link-in for multi-cluster in parallel communication
6
PCS
inverter CAN communication
7
DO/DI
Relay output/input
(Output is for emergency alarm information, Input is
for clustering and distinguishing)
8
ADDR
Assign addresses for each model
(Refer to Table 1-2.1- Table 1-2.6)
9
GND
Terminal connect to ground
10
+/-
Positive and negative power terminals
11
USB
USB interface for system upgrade
12
Hanger
For rack mounting
13
Handle
For moving

3
Table 1 Battery address setting method, as described in the table:
address
#1
#2
#3
#4
1
ON
OFF
OFF
OFF
Battery1
2
OFF
ON
OFF
OFF
Battery2
3
ON
ON
OFF
OFF
Battery3
4
OFF
OFF
ON
OFF
Battery4
5
ON
OFF
ON
OFF
Battery5
6
OFF
ON
ON
OFF
Battery6
7
ON
ON
ON
OFF
Battery7
8
OFF
OFF
OFF
ON
Battery8
9
ON
OFF
OFF
ON
Battery9
10
OFF
ON
OFF
ON
Battery10
11
ON
ON
OFF
ON
Battery11
12
OFF
OFF
ON
ON
Battery12
Note:
When the battery module is used independently, refer Table 1.
When the battery modules are connected in parallel, please refer to Table 1. For other battery modules
connected in parallel, see Table 1.
Figure 3: LED lights
No.
Name
Color
Description
a
ON/OFF
Power on/off Button
b
ALM
Red
Failure or protection status
c
RUN
Green
Normal operation
d
LED 1
Red
0%-19%
e
LED 2
Green
20%-39%
f
LED 3
Green
40%-59%
g
LED 4
Green
60%-79%
h
LED 5
Green
80%-100%

4
1.3 Function and Introduction
Function
Description
APP Display and
Upgrade
Display BMS information and upgrade
CAN
Communication
2 Circuits，with isolation，One for battery parallel communication, one
for communication with inverter
Battery in Parallel
Up to 12 Cells Connected in Parallel
SOC Algorithm
Dynamic SOC estimation for battery packs
SOP Algorithm
Based on different temperature, The evaluation capacity of voltage and
SOC to the maximum output or maximum input at the next moment
Running Alarm
Status Display
2 LED lights to display. Green：System running status，Red：Faulty
status;
Power off
1. 1、Button Shutdown, 2、No Communication Shutdown, 3、Battery
Low Voltage Shutdown 4、When Used in Parallel, it Can Be "One Key
Shutdown"
Power on
1、Key On, 2、Charge On, 3、Activate Signal on, 4、When Used in
Parallel Can "One Key On"
Balanced
Management
Improve the consistency of the voltage of each single battery to protect
the battery
Voltage Detection
Detect single cell voltage (14-16 strings) or total voltage (2 circuits)
Current Detection
Battery charging current, discharging current detection
Temperature
Detection
8 circuits. 6 circuits for battery temperature detection, 2 circuits for
MOS tube temperature detection
Protection
It has battery overcharge protection, overdischarge protection, battery
overvoltage protection, high temperature and high protection, low
temperature protection, short circuit protection and hardware fault
protection, etc. And there is record function for the fault alarm, which
is convenient for after-sales viewing and analysis of problems.
Precharge Control
Charging low-voltage batteries with low current
Predischarge
Control
Precharge the inverter capacitors
Interface
Same Port

5
1.4 Battery software upgrade
1.4.1 Upgrade via USB
Copy the upgrade file into the U disk；
Battery off, access U disk;
Start the battery and successfully enter the upgrade state, the ALM and RUM two leds will
blink for 3 seconds at the same time；
The battery LED light flashes in the mode of running horse light, indicating that the upgrade
is completed.
Note: Choose the USB upgrade mode, there must be no other files in the U disk, otherwise the
upgrade will not be possible or the upgrade error.
1.4.2 Through inverter remote upgrade
Through our inverter, connect to WiFi for remote upgrade;
The LED light that displays the SOC continuously flashes at 500ms during the upgrade
process;
The host will upgrade the slave machine in turn after the upgrade is completed;
The device in the slave upgrade displays the SOC LED light flashing continuously at 500ms;
The LED displays normally after the upgrade.
Note: Inverter remote upgrade mode can only upgrade the battery host.

6
2 Safety
Safety information contains in this section must be observed at all times when working on or with
batteries. For safety, installers are responsibility to familiarize themselves with this manual and all
warnings before installation.
2.1 Application
Please read the product manual and the warning signs on the surface of the battery box carefully
before using the battery. Improper use of the battery may cause overheating and damage to the
battery. The company does not assume any responsibility for any accidents caused by improper
operation. In order to use and dispose of the battery safely, please read the operating instructions
carefully before use:
Keep the batteries away from heat sources, high voltage places and long periods of sunlight
exposure;
Batteries must not be thrown into water or fire;
Do not reverse the positive and negative terminals of the battery;
Do not use metal to short the positive and negative terminals of the battery
Avoid excessive physical shocks and impacts to the battery, do not hit, drop or step on the
battery;
It is strictly forbidden to disassemble or assemble the battery privately without the permission
and guidance of the manufacturer;
Cannot mix other batteries of different manufacturers, types and models;
Do not use or store in high temperature environments, as this may cause the battery to heat up,
catch fire or have a reduced service life;
Charge the battery promptly (within 15 days) after it runs out of charge;
Please use the matching or recommended professional lithium battery charger;
Stop using the battery if it has abnormal conditions such as odor, discoloration, noise, liquid
leakage, or serious deformation;
If electrolyte leaks into the skin or eyes, flush with water and seek immediate medical attention;
Please place the battery out of the reach of pets and children, and prohibit children from
touching the battery;
Below 0℃, due to the low temperature performance of the battery, please reduce the power to
use, a battery pack with a load of 2.5KW or less.
2.2 Safety Precautions
2.2.1 Environment requirements
Do not expose the battery to temperature above 55℃or heat sources.
Do not install or use the battery in wet locations, moisture , corrosive gases or liquids, such as
bathroom.
Do not expose the battery to direct sunlight for extended periods of time. 。
Place battery in safe place away from children and animals. 。
Battery power terminals shall not touch conductive objects such as wires.
Do not dispose the batteries in fire, which may cause an explosion.
The PACK shall not come in contact with liquids.
The PACK can only be installed indoors. Regarding indoor installation, please do not install it in
the bedroom, living room, kitchen, etc.

7
2.2.2 Operation and Precautions
Do not touch the PACK with wet hands
Do not disassemble the PACK without permission
Do not crush, drop or puncture the PACK and battery.
Dispose the batteries according to local safety regulations
Store and recharge battery in accordance with this manual.
Ensure the connection of ground wire reliable.
Remove all metal objects such as watches and rings that could cause a short-circuit before
installation, replacement and maintenance.
The Pack shall be repaired, replaced or maintained by skilled personal that has been recognized.
When storing or handling batteries ,do not stack batteries without package.
Do not broke the battery, the released electrolyte may be toxic and is harmful to skin and eyes.
Packaged batteries should not be stacked more than specified number stipulated on the packing
case.
Do not use damaged, failed or deformed batteries, which may lead to high temperature or even
dangerous accidents. Continued operation of damaged battery may result in electrical shock, fire
or even worse.
2.3 Warning Labels
Symbols
Description
Do not dispose in trash
Lithium ion battery can be recycled
Certification in European union area
Electric shock hazard
Explosive gas

8
May leak corrosive electrolyte
Heavy enough to cause severe injury
Keep the Pack away from children
Make sure the battery polarity well
connected
Do not expose to fire
Operate as the Manual

9
Figure 4: Nameplate
2.4 Emergency Responses
Manufacturer takes foreseeable risk scenarios into consideration and is designed to reduce hazards
and dangers. However, if the following situation occurs, do as below:
Situation
Occurs
Description and Action
Leakage
1. Avoid touch of leaking liquid or gas. If you touch the
leaking electrolyte, do as below immediately
2. Inhalation: Evacuate the contaminated area, and seek
medical help.
3. Eye contact: Rinse eyes with flowing water for 15
minutes, and seek medical help
4. Skin contact: Rinse contacted area thoroughly with soap
and water, and seek medical help.
5. Ingestion: Vomiting, and seek medical help.
Fire
If the BATTERY is on fire, try to extinguish the fire with fire
fighting sand and evacuate people due to the situation
Wet Packs
If PACK is flooded or submerged, do not access it. Contact
Growatt or distributor for technical assistance immediately.
Damaged
PACKS
Damaged PACKS are dangerous and must be handled with
special attention. They are no longer suitable for use and
may cause danger to people. If the PACK damaged, stop use
it and contact the Growatt or distributor.

10
3 Storage and Transportation
3.1 Storage Requirements
Place the BATTERY follow the identification on the packing case during storage.
Do not put the BATTERY upside down or sidelong.
The defective PACK needs to be separated from other Batteries.
The storage environment requirements are as follows:
1) Install the BATTERY in a dry and clean place with proper ventilation
2) The storage temperature for a short week is between -20℃ to 55℃
3) If you store the PACK over a long period of six months, the storage temperature is
between-10°C to 40°C, relative humidity: 10%~90%RH.
4) Place the BATTERY away from corrosive and organic substances (including gas
exposure).
5) Free from direct exposure to sunlight and rain
6) At least two meters away from heat sources (such as a radiator) , free from exposure to
intensive infrared radiation.
If the BATTERY has not been used for more than six months, it needs to be charged, The
charging procedure is as follows:
1) Identify the PACK that needs charging;
2) Refer to quick installation guidance, complete the installation and wire connection.
Ensure BATTERY in off status during all the steps.
3) Activating the inverter, activating the battery and starting charging;
4) When the RUN_LED is always on and the SOC LED is flashing to indicate that it is in
normal charging;
5) When the 5 SOC LED lights are always on, it indicates a full charge.
3.2 Transportation Requirement
PACK has been certified in UN38.3 (Section 38.3 of the sixth Revised Edition of the
Recommendations on the Transport of Dangerous Goods: Manual of Tests and Criteria) and SN/T
0370.2-2009 (Part 2: Performance Test of the Rules for the Inspection of Packaging for Exporting
Dangerous Goods). PACK is classified as category 9 dangerous goods.
The PACK shall not be transported with other inflammable, explosive or toxic substances; Ensure
the original Package and label complete and recognizable.
Prohibit direct exposure to sunlight, rain, condensing water caused by temperature difference
and mechanical damages.
There will be a drop in capacity during transportation and storage.
Transportation temperature is between-10°C to 40°C, relative humidity: 10%~90%RH

11
4 Installation
Ensure to read the Guidance before installation in order to understand product information and
safety cautions;
Operators should be well trained technicians and fully understand the whole photovoltaic system,
grid network, working principle and national regional standards;
Installers must use insulating tools and wear safety equipment;
Device damages caused by failure to comply with storage, transportation, installation and use
requirements specified in Guidance are not covered by Warranty
The PACK can only be installed indoors. Regarding indoor installation, please do not install it in
the bedroom, living room, kitchen, etc
Different types of batteries are not recommended to be mixed and used in parallel.
The battery system cannot be installed, dismantled, and maintained when it has been powered
on
4.1 Installation environment
The ambient temperature for the installation of the battery system shall be above 0℃, below 40℃,
and the humidity shall between 10% -95%
Figure 5: Installation environment requirements

12
4.2 Installation Required Tools
The following tools are required to install the PACK:
5mm Allen key
Screw Driver
Wrench
Tap Measure
Multi-meter
It is recommended to wear the following safety gear when dealing with the PACK
4.3 Check
4.3.1 Pre-installation Check
Check the package
Check the PACK package before open it. If any abnormity is
detected, do not open the Package and contact your
distributor.
Check the power
Check and confirm the PACK is powered off before
installation.
Check deliverable
e Check the quantity of all parts inside according to the
package list. If there is any part missing or damaged, please
contact your distributor
Insulated Glove
Safety Goggle
Safety Shoes

13
4.3.2 Check Packing List
1 2 3 4
5 6 7 8
9 10 11 12
Hope 5.5L-A1 Battery Pack (Standard)
Hope 5.5L-A1 Kit package (Optional)
Item No.
Part Name
Quantity
Item No.
Part Name
Quantity
1
Hope 5.5L-A1Battery
Pack
1 pcs
5
Battery Bracket
4 pcs
2
User Manual
1 pcs
6
Screw bolt
4 pcs
3
CableShorting-circuit
cap
1 pcs
7
SC35-8 lug
4 pcs
4
Warranty Card
1 pcs
8
Screw
4 pcs
9
Power+ Cable
1 pcs
10
Power- Cable
1 pcs
11
Network Cable A
1 pcs
12
Network Cable B
1 pcs

14
4.4 Installation
4.4.1 Battery Placement
1) Please install indoors and ensure the level of the ground.
2) The maximum quantity of stacking battery pack is 6, only support to horizontally mounted.
Make sure the batteries are mounted in the correct orientation. Please refer to the picture
below (√ means acceptable, X means unacceptable).
4.4.2 Communication line connection
Please wear an anti-static wrist strap, anti-static gloves, and goggles
It is recommended that the power line and communication line between the battery and the
inverter should not exceed 2 meters
inverter Communication interface definition:
Item
Crystal head picture
Serial no.
Definition
PCS
1
RS485_B
2
RS 485_A
3
GND_COM
4
CAN_H
5
CAN_L
6
GND_COM
7
8

15
4.4.3 Single battery installation
Make sure the battery is in off mode and the battery breaker is off Ensure there are no tangled
cables after battery wiring.
Operation Step 1: Fix the ground wire to the ground terminal with an M4 screw, and fix the other
end to the inverter. Note that the cross-sectional area of the ground wire is 16mm2
1. Insert the network cable A into the inverter port of battery 1, and the other end insert into the
BMS network port of the inverter
Operation Step 2: Insert the network cable into the battery port
1. Insert network cable A into the inverter port of the battery, and the other end of the network cable
into the network port of the inverter
Operation Step 3: Connect power cable。
1. Fix the OT terminal of the power cable to the pair of "+/-" terminals of the battery
2. Put the plastic cover back
3. Fix the other end to the breaker and then connect to the inverter

16
*When connecting the power cable, make sure the direction of OT terminal is
correct. Don’t stack two OT terminals on one power port
Figure 6：Single Battery Installation Diagram
1) The battery is not allowed to be wired in the running state, and the battery should all be off
before installation
2) Please install the communication line first, then protect the unused ports and USB ports against
dust, and finally install the power cable
3) To ensure the safety, don't forget to connect ground wire
4) We recommend installing a circuit breaker between the inverter and the battery. For the
specifications of the circuit breaker, we recommend using a molded case circuit breaker with a
rated operating voltage greater than 80Vdc and a rated operating current greater than 200A.

17
4.4.4 Battery pack capacity expansion installation
*Ensure all batteries are in off mode and battery breakers are off
*Ensure there are no tangled cables after battery wiring
*Support up to 12 battery packs connected in parallel to form a 5.5KW expanded energy storage
system
Operation Step 1: Connect network cable
1. Insert the network cable A into the inverter port of battery 1, and the other end insert into the
BMS network port of the inverter
2. Use network cable B to connect the LINK-OUT port of battery 1 to the LINK-IN port of battery 2.
Connect the rest of the batteries in the same way until the last battery is connected.
Operation Step 2: Connect ground
Connect the ground terminal of each battery to the ground strip
Operation Step 3: Connect power cable
Connect the +/- terminals of each battery to the +/- terminals of the next battery, and then connect
the wires to the inverter
Note: Do not insert the shorting cap for battery pack expansion