LYBESS Ground HV-20K User manual

High Voltage Stackable Home
Battery System User Manual
LFP Ground HV-20K
Anhui LEAD-WIN New Energy Technology Co., Ltd.
First floor, No. 8-5, Liandong U Valley Shushan
International Enterprise Port, 1499 Zhenxing Road,
Shushan District, Hefei City, Anhui, China
Tel: [phone]
E-mail: [e-mail]
Website: www.lybess.com
Get to know us

1. Product Information
2.
3.
C O N T E N T S Safety Information
Specifications
1.1 Battery Overview
1.2 Appearance
1.3 Dimensions
1.4 Capacity Options
1.5 Operation
1.6 Communication Port
2.1 General Safety
2.2 Personal Safety
2.3 Electrical Safety
2.4 Environment Safety
2.5 Transportation Safety
About this Document
This document describes the installation, electrical connection, operation and commission of 384V 52Ah High Voltage Stackable Home Battery
System (hereafter simply put LFP Ground HV-20K). Before installing and operating LFP Ground HV-20K, ensure that you are familiar with product
features, functions, and safety precautions provided in this document.

1 Product Information
1.1 Battery Overview
The battery is a high voltage smart series lithium battery pack which consists of long
span LiFePO4 battery cells and functional BMS. It can store and release electric
energy based on the requirements of the inverter controller. It is mainly for home
energy storage system.
Features
LiFePO4 prismatic cell
＞6000 cycles @0.5C & 25℃ conditions
Maximum 1C charge and discharge capability
High voltage smart series
Be extended to 8 packs maximum
Protective and active BMS allows greater reliability and control
IP 65 grade
Fully recyclable at the end of life
Compact
1.2 Appearance
1.2.1 High Voltage Box Appearance
1.2.1 High Voltage Box Appearance
1) The DC power switch
2) The start-up switch
3) DEBUG
4) Inverter communication port
5) Inverter Negative terminal
6) Inverter Positive terminal
7) ALM
8) RUN
9) SOC
1.3 Dimensions
1.3.1 PDU Dimensions

1.3.2 Battery Pack Dimensions
1.4 Capacity Options
The battery can be series connected for extending energy(kWh).
ØThe maximum power(kW) is limited by main cables from PDU to inverter.
ØThe minimum 3 battery packs can be series communicated.
ØThe maximum 8 battery packs can be series communicated.
1.4 Capacity Options
Alarm
When the red light is on, some parameters of the battery have reached the warning
value, or the battery has begun to be protected, BMS will send a warning when the
battery is being charged or discharged. But after the battery protection, some
functions of the battery can not be used.

1.5 Operation
Power ON
STEP1 Turn on dc switch.
STEP2 Press the start button 3S, BMS power supply.
Power OFF
Turn off the power switch, the system power is shut down.
1.6 Communication Port
A PDU has two RJ45 ports, one for communicating with PCS and the other
for debugging.
PCS COM and DEBUG pin interface definition
2 Safety Information
2.1 General Safety
Please carefully read the manual safety precautions, and observe all the safety
instructions on the equipment and in this document.
The "DANGER”，"WARNING", and "NOTICE” statements in this document do not
cover all the safety instructions. They are only supplements to the safety
instructions.
For user safety and utilization efficiency of this manual, a list of symbols are
designed to alert people from danger. You must understand and comply with the
emphasized information to avoid personal injury and property damage. Relative
safety symbols have been listed below.
DANGER indicates a hazardous situation
which, if not avoided will result in serious
injury and fire.
WARNING indicates a hazardous
situation which, if not avoided will result
in property loss or void warranty.
NOTICE indicates normal situation which,
if not avoided will result in that battery
doesn't work.
Danger
Warning
Notice
Follow local laws and regulations when installing, operating, or maintaining the
equipment. The safety instructions in this document are only supplements to local
laws and regulations.

2.2 Personal Safety
Personal Requirements
People who plan to install or maintain battery equipment must be trained,
understood all necessary safety precautions, and are able to perform all operations
correctly.
Only qualified professionals or trained people are allowed to install, operate, and
maintain the equipment.
Personal Safety
ØDo not place battery at a children or pet touchable area.
ØDo not touch the energized battery, as the enclosure is hot.
ØDo not touch the energized battery terminals.
ØDo not stand on, lean on, or sit on the battery.
2.3 Electrical Safety
Symbols on Battery
There are some electrical symbols on battery relate to electrical safety. Please make
sure you have fully understand them before installation.
Electrical danger
Voltage exits when the battery is powered on.
Only qualified engineers are allowed to operate.
Earth connector
Earth connection.
DC positive and
negative connectors
Identify positive and negative connectors of DC
power source.
CE mark
The product meets CE certification.
WEEE tag
Can't leave battery as garbage disposal.
Recycle
Battery can be recycled.
2.3 Electrical Safety
ØBefore installation, ensure that the equipment is intact. Otherwise, electric shocks
or fire may occur.
ØDo not connect or disconnect power cables when battery is power-on. Which may
cause electric arcs and sparks more overfire or personal injury. Before connecting
a power cable, check the positive or negative connectors are correct.
ØDo not connect in series with different batteries.
ØDo not connect battery with AC directly.
ØDo not connect battery with PV wiring directly.
ØBatteries are not allowed to be used in parallel.
ØDo not connect battery to faulty or unqualified inverter or charger.
ØDo not create short circuits with the external connection.
ØMake sure the grid is cut off and the battery is powered off before maintenance.
ØMake sure the earth cable is connected correctly before operation.
ØRecharge battery in every six months.
ØRecharge battery within 10 days after battery is fully discharged.
ØMake sure battery cable placement is installed correctly.
ØWhen the battery is being installed or repaired, make sure the battery is powered
off and using a multimeter to make sure there is no voltage in the positive and
negative terminals.
ØPlease use dedicated insulated tools for install and maintenance.
ØPlease make sure all batteries are power-off when multiple connection in series.
ØPlease check lights on sequence when battery power-on.
ØPlease make sure communication connection connect correctly with battery and
inverter.
ØPlease check inverter alarm or SOC reading when there is BMS communicated
with inverter.

2.4 Environment Safety
ØEnsure that the equipment is installed in a dry and well-ventilated environment.
ØThe installation position must be away from direct sunlight and rain.
ØThe installation position must be far away from fire sources.
ØThe installation position must be far away from water sources such as taps, sewer
pipes, and sprinklers to prevent water seepage.
ØThe bracket must be installed solidly and horizontally.
ØDo not expose the equipment to flammable or explosive gas or smoke.
ØDo not perform any operation on the equipment in such environments.
ØThe operation and service life of the battery depends on the operating
temperature. Operate the battery at a temperature equal to or better than the
ambient temperature. The recommended operating temperature range is from
0°C to 30°C.
2.5 Transportation Safety
ØThe products belong to class 9 dangerous goods.
ØPlease protect the packing case from the below situations.
ØBeing dampened by rains, snows, or falling into water.
ØFalling or mechanical impact.
ØBeing upside-down or tilted.
3 Specifications
Item
Specifications
Ground HV-20K
Battery Type
LiFePO4
Usable Capacity
19.97KWh
Nominal Voltage
384V
Nominal Capacity
52Ah
Voltage Working Range
336–438V
Max. Charging Current
50A
Max. Discharging Current
50A
Connection
1P120S
SOC Accuracy
＜8%
Communication
CAN OR RS485
Cycle Life
＞6000 ( 85%DOD 25℃ 0.5C )
Working Temp. Range
Charge: 0℃~55℃
Discharge: -20℃~60℃
Storage Temperature
-10℃~+35℃
Weight
~199kg
Product Dimension
606x220x1580mm
Transportation SOC
30%
IP Grade
IP65
Cooling
Nature