VLRV Elite Series Battery System

Product Information

Specifications

• Product Name: VLRV Elite Series Battery System
• Version: V2.3
• Battery Type: Lithium iron phosphate
• Application: Green energy batteries for various power
  fields

Product Description

Lithium iron phosphate batteries are a new generation of green
energy batteries. They are increasingly replacing traditional
lead-acid batteries in various power fields due to the rapid
development of lithium-ion battery technology.

Safety Instructions

To ensure user safety, the manual provides identification
information and symbols. Users must carefully read and follow the
safety instructions provided to prevent potential risks.

Cautions

• The battery terminals must be disconnected before any
  maintenance.

• Avoid dropping or crushing the battery to prevent explosion or
  severe damage.

• Avoid exposing the battery to open flames or extreme heat to
  prevent explosion.

• Handle the battery with care to avoid damage.

• Keep the battery dry and away from children.

• Do not short circuit the battery.

User Manual

This manual is intended for professional and technical staff who
install, operate, and maintain the batteries. Users should be
qualified for electrical work. Before operating the battery module,
ensure proper training and carefully read the manual. Store the
manual in a safe place for future reference.

Disclaimers

The manual content is subject to constant updates and revisions
without prior notice. Visit the official website or contact local
distributors for the latest product manual.

Application Scope

The battery system is suitable for various power applications
and should be handled by qualified personnel. Ensure understanding
of technical parameters before use.

Applicable People

The product is intended for professional technical staff and
users who need to access technical information. Users must be
qualified for electrical work.

Revision Table

FAQ

Q: How do I disconnect the battery terminals safely?

A: Before any maintenance, ensure that the battery terminals are
disconnected to prevent any electrical hazards. Follow the
manufacturer’s instructions for safe disconnection.

VLRV Elite Series Battery System
User Manual
V2.3

Content
1 Overview ……………………………………………………………………………………………………………………………………………….1 1.1 Application Scope………………………………………………………………………………………………………………………….1 1.2 Applicable People ………………………………………………………………………………………………………………………….1 1.3 User Manuel …………………………………………………………………………………………………………………………………1 1.4 Disclaimers …………………………………………………………………………………………………………………………………..1
2 Product description ………………………………………………………………………………………………………………………………….2 3 Safety Instructions …………………………………………………………………………………………………………………………………..3
3.1 Label Description…………………………………………………………………………………………………………………………..3 3.2 Installation Tools……………………………………………………………………………………………………………………………4 3.3 Attention Items………………………………………………………………………………………………………………………………4 4 Product Description …………………………………………………………………………………………………………………………………5 4.1 Product Introduction ………………………………………………………………………………………………………………………5 4.2 Battery Diagram…………………………………………………………………………………………………………………………….5
4.2.1 VLRV1280A Appearance & Dimension Schematic………………………………………….. ………..6 4.2.2 VLRV2560(A/B) Appearance & Dimension Schematic…………………………………………….6 4.2.3 VLRV5120(A/B/C) Appearance & Dimension Schematic……………………………………………..8 4.3 VRLA Series Battery Front Panel Diagram………………………………………………………………….8 4.4 VRLV2560,5120 batter LED Indicator status and definition………………………………………………..9 4.5 VRLV 2560, 5120 battery communication Port Diagram and Description………………………………….9 5 Battery Installation ………………………………………………………………………………………………………………………………..10 5.1 Handling, Transportation, Storage ………………………………………………………………………………………………….10
5.1.1 Handling………………………………………………………………………………………………10 5.1.2 Transportation………………………………………………………………………………………..10 5.1.3 Storage………………………………………………………………………………………………..10 5.2 Battery Installation Requirement ………………………………………………………………………………………………….111 5.2.1 Environment Requirement……………………………………………………………………………..11 5.2.2 Open-box Inspection…………………………………………………………………………………..11 5.2.3 Precautions before installation………………………………………………………………………….12 5.3 Battery Installation……………………………………………………………………………………………………………………….12 5.3.1 VRLV1280A battery Installation and Wiring…………………………………………………………..12 5.3.2 VRLV 2560(A/B), 5120(A/B/C) battery Installation and Wiring……………………………………..13 6 Battery Use …………………………………………………………………………………………………………………………………………..16 6.1 battery charging ……………………………………………………………………………………………..16 6.2 Bluetooth Setting ……………………………………………………………………………………………………………………….19 6.2.1 Use as a lead acid battery………………………………………………………………………………17 6.2.2 When battery needs to communicate with the inverter………………………………………………..18 6.3 Supplementary Power……………………………………………………………………………………….20 6.4 Battery Discharge and End-of- life Judgment……………………………………………………………….20 6.4.1 Battery Discharge……………………………………………………………………………………..20 6.4.2…………………………………………………………………………………………………………20
I

7 Maintenance………………………………………………………………………………………………………………………………………….21 7.1 Clean………………………………………………………………………………………………………………………………………….21 7.2 Common Faults (Phenomenon) and Solutions …………………………………………………………………………………21 7.3 Daily Maintenance…………………………………………………………………………………………..20
8 Cautions……………………………………………………………………………………………………………………………………………….23 8.1 Cautions……………………………………………………………………………………………………..23 8.2 Description of Warranty…………………………………………………………………………………….23
II

Revision Table

No

Version

1

Rev1.0

2

Rev2.0

3

Rev2.1

4

Rev2.2

5

Rev2.3

Revised by

Content First release Update Update Update Update

Revision Date 2022.09.06 2023.07.24 2023.08.02 2024.03.05 2024.04.11

III

1 Overview
1.1 Application Scope
This manual introduces the information about Voltgo Elite series Lithium iron phosphate battery (LFP) products, including product specifications, operation specifications, product maintenance and other related information. These LFP battery products are developed by Voltgo powerhave been widely used in many scenariossuch as solar light, toy car, medical cart, RV, E-boat etc. The Elite series battery is divided into three categories: VRLV1280(A), VRVL2560(A/B), and VRLV5120(A/B/C), totaling six products.
1.2 Applicable People
This manual is used for professional and technical staff who installs, operates and maintains the batteries, as well as for the user who may need to view the relevant technical parameters. Anyone who operates must be qualified for electrical work.
1.3 User Manuel
Before you operate the battery module, you should be better trained and read the manual carefully, to ensure that the person using the product is fully understood. Remove any possible metallic shorting risk of Jewel, Watches, and Pens. Metal bars and frames. After reading, please keep it in a safe place for future reference.
1.4 Disclaimers
It may cause serious injury to yourself or others, or result in damage to the product or property, if fail to operate this product properly. Once using, you will be deemed to have understood, acknowledged and accepted all the terms and contents in this document. Users undertake to be responsible for their own actions and all the consequences arising there from. The company shall not be liable for all damages caused by the user’s failure in accordance with the provisions of this document and the user manual.
The content of this manual will be constantly updated and revised, and update, revision or termination without prior notice. So please visit the official website or obtain the latest product manual through your local distributors.
– 1 –

2 Product description
Lithium iron phosphate batteries are a new generation of green energy batteries. In recent years, with the rapid development of lithium ion battery technology, the pace of lithium ion batteries to replace the traditional lead- acid batteries is also gradually accelerated in various power fields.
Voltgo power develops and produces LFP battery products, which are suitable for low-voltage lead-acid replacement applications. These products adopt the highest safety performance lithium iron phosphate cells, with a high-precision battery management system (BMS), which can monitor and collect voltage, current and temperature of cells in the module in real time. The BMS also has a passive balance function, advanced battery control strategy, which can improve the performance of the battery pack further.
Elite series battery products consists of LFP battery module, BMS/BMU, housing and wire. Each module owns complete protection function. The modules can be connected in parallel to meet the expansion needs. Elite series battery products are designed with ABS shell, can be used 24/7, which has outstanding advantages such as waterproof, impact resistance, good insulation performance, easy installation and maintenance-free. Some products also have special functions such as Bluetooth and low-temperature heating, which can meet the application needs of RVs, solar street lights, small medical equipment, toys and some small energy storage application.
– 2 –

3 Safety Instructions

3.1 Label Description

In order to ensure the user’s personal safety when using this product, this manual pprovviidees rreelleevvaantt iiddeennttiiffiiccaattiioonn

information and uses appropriate symbols to alert the user, who should carefully read thee ffollloowwiinngg lliisstt ooff ssyymmbboollss

used in this manual.

Table 3-1 Label description

Potentially low risk: may result in mild or moderate impairment if not avoided

High Risk: May result in serious injury or death if not avoided

The battery terminals must be disconnected before commencing on the baattery

The battery could explode and/or be severely damaged if dropped or crushed

The battery may explode if exposed to open flames or other extreme sources of heat

This side should be up

Handle with care to avoid damage

Keep dry

Keep the battery away from kids

Do not short circuit

Do not reverse connection the positive and negative

– 3 –

3.2 Installation Tools

Tools

Multi-meter

Electric screwdriver

Installation Tools

Slotted screwdriver

Table 3-2 Installation tool sheet
Protective gloves

Insulated anti-smashing shoes

Cross screwdriver

Socket spanner

Wire stripper

3.3 Attention Items
3.3.1 Manuel Custody This manual contains important information about the Elite series batteries. A careful reading of this manual will
help you become familiar with this product, and this manual should be kept in a safe place so that it can be easily accessed by maintenance personnel at any time when needed.
3.3.2 Operator Requirements
Only trained and qualified professionals should perform various operations on the product: the product operator should be fully familiar with the product’s system components and operating principles, as well as understanding the product’s user manual. 3.3.3 Measuring Instrument
In order to ensure that the electrical installation meets the requirements, please use the relevant electrical measuring equipment, such as multi-meter, power meters, etc.

– 4 –

4 Product Description

4.1 Product Introduction

Elite series LFP battery adopts the highest safety performance lithium iron phosphate battery, with a series of

specifications of 12.8V100Ah, 12.8V200Ah, 12.8V400Ah, 25.6V100Ah, 25.6V200Ah and 51.2V100Ah. Each

battery module has a built-in full-featured & high-precision battery management system (BMS), which can realize

real-time monitoring of voltage, current and temperature, and has a passive balance function, which can effectively

improve the battery performance.

Meanwhile 12.8V200Ah, 12.8V400Ah, 25.6V100Ah, 25.6V200Ah and 51.2V100Ah battery own special

structure design, the metal strips can be used not only as a handle, but also as a “floor lock” &”rear lock”, and as a

connecting strip when multiple batteries are used in combination, which can great improve installation efficiency

and reduce special tools requirement, that will obviously extend the battery application fields. And unique safety

design (cell, structure, bracket, aerosol automatic fire extinguishing device) can greatly improve the safety

performance of the battery.

Table 4-1 Elite series battery specification

Type VLRV1280A VLRV2560A VLRV2560B VLRV5120A VLRV5120B VLRV5120C

Voltage(V) 12.8 12.8 25.6 12.8 25.6 51.2

Capacity(Ah) 100 200 100 400 200 100

Energy(Wh) 1280 2560 2560 5120 5120 5120

Width(mm) 330 460 460 460 460 460

Depth(mm) 172 220 220 320 320 320

Height(mm) 220 212 212 247 247 247

Weight(kg) 11.2 25 27 41 41 41

4.2 Battery Diagram

5

4.2.1 VLRV1280A Appearance & Dimension Schematic Figure 4-1 VLRV1280A Appearance drawing
6

4.2.2 VLRV2560(A/B) Appearance & Dimension Schematic Figure 4-2 VLRV2560 (A/B) Appearance drawing
7

4.2.3 VLRV5120(A/B/C) Appearance & Dimension Schematic Figure 4-3 VLRV5120 (A/B/C) Appearance drawing
4.3 VRL2560, 5120 Series Battery Front Panel Diagram
Figure 4-4 VLRV Series Battery Front Panel
8

Table 4-2 VLRV 2560, 5120 series battery front panel interface description
4.4 VRLV2560,5120 battery LED Indicator status and definition
Table 4-3 VRLV 2560, 5120 LED indicator status and definition
4. 5 VRLV 2560, 5120 battery communication Port Diagram and Description
Figure 4-4 Communication interface diagram
9

Table 4-4 VRLV 2560, 5120 series battery Communication interface definition
5 Battery Installation
5.1 Handling, Transportation, Storage
5.1.1 Handling Rough handling practices may cause short circuit or damage to the battery pack, resulting in battery leakage or
fire. Forklifts or carts should be used for handling. Materials transported should not exceed the width and height of aisles and doors,, and shoouuldd bbee ttrraannssppoorrtteedd aatt
a moderate speed. Avoid the phenomenon of inverted and laminated battery packs when unloading. Avoid touch the terminals when handling the battery. Avoid battery short-circuit when handling the battery.
5.1.2 Transportation Due to the heavy weight of the battery module, in order to guarantee safety, a forklift or multi-person
handling is recommended Avoid dropping and throwing; the equipment should be prevented from colllision annd strroonngg vviibbrraattiioonn
during transportation.
10

5.1.3 Storage

Short-term storage (within 3 months): If the battery is not used in a short period of time, the battery can be fully charged and stored in a dry, cool, non-corrosive gas, temperature 10-45°C, relative humidity 60±30%, no strong electromagnetic fields and in direct sunlight.

Long-term storage (over 3 months): If the battery is not used for more than 3 months, keep thee bbaatttteerryy SOC at 50%~70%, store it in a dry, cool, non- corrosive gas, temperature 20-35 , relative humidity 50 ± 15 %, in an environment without strong electromagnetic fields and direct sunlight, and make sure to charge once every 6 months to avoid irreversible capacity loss caused by long-term storage.

5.2 Battery Installation Requirement

5.2.1 Environment Requirement

Table 5-1Environment requirement

Application scenarios

RV, solar lights, E-boat, small energy storage

Operating Environment

All-weather

Discharge Temperature ()

-20~55

IP grade

VLRV1280 IP65; VRLV2560,5120 IP65

Storage Temperature()

10-45

Humidity (%)

5 ~ 95% RH

5.2.2 Open-box Inspection

Table 5-2Unpacking tools sheet

Item

Tools

Slotted screwdriver Protective gloves Stripper

Tools

Hammer

Elite series products have been strictly tested and tested before leaving the factory. Pleassee siggnn ffoorr tthheemm aafftteerr inspection. If the product is damaged, please contact the local distributor in time. Please open the box to check: whether the outer packaging is intact or damaged; whether the quantity and type of ggooodds oonn tthee bbiillll ooff mmaatteerriiaallss are consistent with the description; whether the internal equipment is damaged.

11

5.2.3 Precautions before installation Make sure every battery modules should be fully charged when used in groups. Avoid moving the position or touch the contact terminals after installation unlless neecessssaarryy..

Avoid installing the battery near a heat source (such as a transformer).

Make sure the terminals show normal metallic luster before connecting, if thhe llusstterr iiss dduulll oorr tthheerree aarree obvious traces of rust, polish the terminals with sandpaper.

Avoid metal conductors touching the positive and negative terminals of the battery

Use correct tools and appropriate method to avoid damage to the terminal, the recommmeenddedd ttiigghhtteenniinngg ttoorrqquuee

is shown in the table

Table 5-3Torque parameter sheet

No.

Scope of application

1

M6

2

M8

Tightening torque value 8.5Nm 12.4Nm

5.3 Battery Installation

5.3.1 VRLV1280A battery Installation and Wiring . Place the battery on a flat floor or shelf . Use straps to hold batteries together while multi batteries are in combination . Use a wrench to connect the cable terminals to the battery terminals one by one. The torque of thee wrencchh cannot exceed the definition in the table above. Meanwhile avoid short-circuiting the battery during the connection process.
All metal installation tools (such as wrenches) need to be insulated for operation

Connect the battery first, then the charger or load It is recommended to keep the distance between batteries at 20mm or more

After the battery is installed, it is necessary to measure the voltage of the battery pack and confirm that it is correct before it can be loaded and powered on.

12

5.3.2 VRLV 2560(A/B), 5120(A/B/C) battery Installation and Wiring . Place the battery on a flat floor or shelf . Remove the “handle” on the casing, the metal part can be turned into a “ground lock”, and the battery can be fixed on the floor with an electric drill; if the metal part is placed on the side of the bbaattteerryy,, iitt ccaann bbee ttuurrnneedd iinnttoo aa “back lock”, use an electric drill can attach the battery to the wall, as shown in 5-1
Figure 5-1 VRLV2560, 5120 batteries Installation Drawing
. When multiple batteries are used in parallel, the rectangular metal strip can be ussed aass aa coonnnneeccttiinngg ppllaattee,, aanndd an electric wrench is used to connect the batteries together, as shown in 5-2
Figure 5-2 VRLV2560, 5120 batteries Installation Drawing
. The VRLV2560 and VRLV5120 series batteries support communication with Vicctron iinnvveerrtteerrss vviiaa CCeerrbboo GGXX and Victron Energy Ekrano GX by Victron Energy VE.Can to CAN-bus BMS type A Cable(not included) . The battery cannot directly plug into the Victron inverter. As shown in 5-3.
Figure 5-3 VRLV 2560, 5120 Batteries Communication Cable Connection Diagram
13

14

. Parallel connect the power cable, as shown in 5-4 Figure 5-4 VRLV2560, 5120 Batteries Power Cable Connection Diagram
Tips 1) If there is only one battery, the No.1 address battery directly connects to the inverter. And the communication port of battery connected to the corresponding inverter communication port. 2) If there are more than two battery modules in parallel, No.1 address battery is master baatttery,, haavvee ttoo ccoonnnneeccttiinngg to the inverter, and include power output and communication port. Others slave’s batteries (other battery address) connect to each other communication port. Then all batteries and inverter can establish communication. 3) Ensure that the slave battery address are different from each other. 4) The VoltGo Elite Series VRLV1280A Battery can be connected in series with a maximum of 4 batteries or in
parallel with up to 4 batteries. VoltGo Elite Series VRLV2560, 5120 series batteries do not support serial
connections but can be connected in parallel to increase capacity.
15

6 Battery Use

If the battery needs to communicate with the inverter, the battery address and protocol need to be set through Bluetooth. If used as a lead-acid battery, it can be directly connected in parallel without action.

6.1 Battery charging

LiFePO4 battery chargers exhibit different behavior during the charging process. Initially, the charger elevates its

voltage to maintain a constant current flow. This phase, referred to as the “bulk” charging stage, allows the charger

to adjust the applied voltage to supply the maximum current to the battery.

After achieving the bulk voltage, the charger progresses to the “absorption” charging stage. Here, a constant

voltage–known as the “absorption voltage”–is applied.

For example, if the battery has reached 14.0 volts during constant current charging, the charger will maintain a

constant voltage of 14.0 volts while gradually decreasing the charging current until it reaches the recommended

charge termination voltage of around 3.5 volts per cell.

At this juncture, the battery is considered fully charged. Unlike lead-acid batteries, the self-discharge of LiFePO4

batteries does not cause significant damage. As a result, the battery charger does not proceed to a “float” stage, as

these LiFePO4 batteries do not require continuous float charging to maintain their charge.

LiFePO4 batteries only require those two stages of charge, including constant current charge and constant

voltage charge, which is called bulk charge and absorption charge.

Parameter
Bulk Voltage range (V) Recommended Bulk Voltage (V) Max. Bulk Current (A) Recommended Bulk Current (A) Absorption Voltage range

12.8V100Ah battery
14.0~14.6
14.0
100 (1C1) 30 (0.3C1)
14.0~14.6

Table 6-1Recommended charging parameters

25.6V100Ah battery
28.0~29.2

51.2V100A h
battery 56.0~58.5

12.8V200Ah battery
14.0~14.6

25.6V200A h battery
28.0~29.2

28.0

56.0

14.0

28.0

100 (1C1) 30 (0.3C1)

100 (1C1) 30 (0.3C1)

150 (0.75C1) 60 (0.3C1)

150 (0.75C1)
60 (0.3C1)

28.0~29.2 526.0~58.5 14.0~14.6 28.0~29.2

12.8V400Ah battery
14.0~14.6 14.0
200 (0.5C1) 120 (0.3C1)
14.0~14.6

16

(V)

Recommended

14.0

Absorption

Voltage V

28.0

56.0~58.4

14.0

28.0

14.0

6.2 Bluetooth Setting

6.2.1 Use as a lead acid battery Download Voltgo App. Use your phone to search for Voltgo in the APP Store (IOS) or on Google Play (Android), and download the application as shown in Figure 6-1.
Figure 6-1 APP Store search

Launch the Voltgo App on your smart phone and turn on the Bluetooth Make sure that the battery Bluetooth is functioning by pressing the OFF/ON switch. On the phone screen, select the Bluetooth logo to display the devices that can be connected. . The Bluetooth ID is located on the side of the battery. After selecting the battery ID in the app, click “Connect”. The battery information will be displayed, shown in 6-2.
17

Figure 6-2 APP connection
6.2.2 When battery needs to communicate with the inverter Select ID Address. Enter the settings interface, click on “Module ID”, select the approoprriiatee IDD ((ddeeffaauullttss==11)).. Restart the battery after changed, as shown 6-3. Select protocol. Select corresponding protocol according to the connected inverrter. Resseett tthee bbattery after changed, as shown 6-3.
18

Figure 6-3APP Setting
Tips: Support Inverter brand List For the VRLV2560A (12.8V200Ah), VRLV2560B (25.6V100Ah), VRLV5120A (12.8V400Ah) and VRLV5120 B(25.6V200Ah) series batteries, currently, communication is only supported with Victron inverters. For the VRLV5120C (51.2V100Ah) battery, communication is currently supported with the following inverters.
19

6.3 Supplementary Power
.During transportation and storage, the battery itself will lose part of power. It is recommended to fully charge the battery before use. .If stop using within a certain period of time, it needs to be replenished regularly. .The time interval and method of replenishment are shown in the following table
Table 6-2 Battery storage temperature and time interval for recharging
6.4 Battery Discharge and End-of-life Judgment
6.4.1 Battery Discharge The BMS will automatically cut-off while the battery reaches to lower-limit voltage without human intervention. Do not continue to hang the load on the battery to avoid the over-discharge phenomenon after the battery discharge termination. 6.4.2 Capacity Test According to the standard capacity calibration method defined in the battery specification, charged and discharged the battery, and after three cycles, the last capacity is the actual capacity. If the test temperature and test conditions are different, the capacity value may fluctuate to a certain extent.
20

7 Maintenance
7.1 Clean
.Keep the appearance of the battery and the working environment clean and dry. .Clean the battery to avoid static electricity. .Clean the battery with a dry cloth. Do not use gasoline, alcohol and other organic solvents, and do not use the cloth contains these substances to wipe the battery.
7.2 Common Faults (Phenomenon) and Solutions
Common faults and solutions are shown in table 7-1. Table 7-1 Common faults (phenomenon) and solutions
7.3 Daily Maintenance
Routine maintenance items are shown in Table 7-2 below.
21

Table 7-2 Routine maintenance items
22

8 Cautions
8.1 Cautions
Please read and comply with the following conditions of installation and use of the battery, incorrect installation using the battery may cause personal injury or damage to the product. (1) DO NOT throw the battery into water. Please store batteries in cool and dry environment. (2) DO NOT put the battery into fire or heat the battery, so as to avoid explosion or other dangerous events. (3) When charge the batteryplease choose specialized charging equipment, and follow the correct procedures, do not use unqualified chargers. (4) DO NOT reverse positive and negative terminals, do not connect the battery directly to AC power, avoid battery short circuit. (5) DO NOT using batteries from different manufacturers or different kinds, types together, and do not mix old batteries and new batteries. (6) DO NOT use the battery when it is hot, bulges, deforms or leaks. (7) DO NOT puncture the battery by nail or other sharp objects; Do not throw, stamp on, impact or hit the battery. (8) DO NOT open or try to repair the battery when it is defective. Warranty invalid if the battery repaired or disassembled. (9) Batteries are half charged before shipment, Don’t use the battery if it’s hot, bulge, or smell abnormal and so on, and report to after-sale dept. immediately. (10) If you need storage the battery for a long time, please charge and discharge the battery every three months to ensure the best performance, and the best state of charge for storage is between 50%~60%. (11) Please use the battery in the temperature range which defined in the manual. (12) The state of charge of batteries is 50% before shipment, please charge the battery before using.
8.2 Description of Warranty
We promises that during the valid warranty period of the product, any problems such as product damage or functional failure caused by non-human or intentional damage will enjoy our free repair and replacement services. Customers need to provide a valid purchase invoice or related product warranty information. If no valid proof can be provided, our company has the right to refuse to provide related services.
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