Marvel ML-150-12 User manual

LiFePO4Battery Pack
Installation & Operation Manual
Version 1.0
Read the instruction manual before installation and operation.
The information include in this manual is accurate at the time of publication. However, this manual
is subject to change without prior notice. In addition, the illustrations in this manual are meant only
to help explain system configuration concepts and installation instructions.
Please note the image shown is for illustration purposes only.
Warning: Read this entire document before installing or using this product. Failure to do so or to
follow any of the instructions or warning in this document can result in electrical shock, serious
injury, or death, or can damage this product, potentially rendering it inoperable.
After installation, the installer must explain the manual to customers and keep this manual
nearby the product for future reference.

Contents
1 Safety Information ......................................................................................................................................................................................................1
1.1 Symbols.........................................................................................................................................................................................................................1
1.2 Safety Instructions....................................................................................................................................................................................................2
1.2.1 General Safety Precautions......................................................................................................................................... 2
1.2.2 Battery Handling guide............................................................................................................................................... 2
1.2.3 Response to Emergency Situations............................................................................................................................. 3
1.3 Qualified Personnel..................................................................................................................................................................................................3
2 Product Introduction .................................................................................................................................................................................................4
2.1 General Information ................................................................................................................................................................................................4
2.2 Product Features.......................................................................................................................................................................................................4
2.3 Appernce and Mechanical Drawing ..................................................................................................................................................................5
2.4 Electrical Performance ...........................................................................................................................................................................................7
2.4.1 Battery Pack Parameters ...................................................................................................................................................................................7
2.4.2 BMS and Display....................................................................................................................................................................................................7
2.4.3 Bluetooth & App Function.................................................................................................................................................................................9
2.5 Transportation and Storage .................................................................................................................................................................................9
2.5.1Transportation .......................................................................................................................................................................................................9
2.5.2 Storage......................................................................................................................................................................................................................9
3 Installation .................................................................................................................................................................................................................. 10
3.1 Install Location........................................................................................................................................................................................................ 10
3.2 Tools/Safety Gears Required............................................................................................................................................................................ 10
3.2.1Tools ........................................................................................................................................................................................................................ 10
3.2.2Safety Gears For Personal Protection........................................................................................................................................................ 10
3.3 DC Cable Prepared................................................................................................................................................................................................. 11
3.3.1Choose DC Cable ................................................................................................................................................................................................. 11
3.3.2Fabrication of DC Cable ................................................................................................................................................................................... 11
3.4 Battery Pack Installation .................................................................................................................................................................................... 13
3.4.1Battery Installation............................................................................................................................................................................................ 13
3.4.2Battery Parallel Installation Guide..........................................................................................................................................................................15
3.4.3System Installation Guide............................................................................................................................................................................................15
4 Commissioning and operation ........................................................................................................................................................................................16
4.1
Operating Conditions ........................................................................................................................................................................................... 16
4.2 Battery Commissioning Steps........................................................................................................................................................................... 16
4.3 Communication Protocol Setting .................................................................................................................................................................... 17
4.3.1Setting By Battery LCD..................................................................................................................................................................................... 17
4.3.2Setting By BMS Host Software(PC)............................................................................................................................................................. 18
4.4 Communication with INVERTER or MPPT................................................................................................................................................. 20
4.4.1Master/RS485/CAN Ports Introduction .................................................................................................................................................. 20
4.4.2Dial switch setting ............................................................................................................................................................................................. 21
5 Troubleshooting........................................................................................................................................................................................................ 21
6 Liability Limitation .................................................................................................................................................................................................. 22

1
1 Safety Information
1.1 Symbols
Caution, risk of electric shock
Do not place or install near flammable or explosive materials
Install the product out of reach of children.
Read the instruction manual before starting installation and operation.
Heavy weight may cause serious injury to the back.
Do not dispose of the product with household wastes .
Recyclable
Disconnect the equipment before carrying out maintenance or repair.
Observe precautions for handling electrostatic discharge sensitive devices.

2
1.2 Safety Instructions
For safety reasons, installers are responsible for familiarizing themselves with the contents of this document
and all warnings before performing installation.
1.2.1 General Safety Precautions
Over-voltages or wrong wiring can damage the battery pack and cause deflagration, which can be extremely
dangerous.
All types of breakdown of the product may lead to a leakage of electrolyte or flammable gas.
Avoid installing the battery pack where flammable materials are stored. Do not install in places where
explosive gas or chemicals are present.
The utility grid, solar input, and battery voltage must be disconnected from the Battery Pack wiring. Wiring
must be carried out by a qualified person.
Battery Pack is not user serviceable.
1.2.2 Battery Handling guide
Do not expose battery to open flame.
Do not place the product nearby flammables. It may lead to fire or explosion in case of accident.
Do not expose or place near water sources like downspouts or sprinklers.
Do not store this product in a place exposed to direct sunlight.
A ventilated area is strongly recommended for handling the product.
Store at cool and dry place. (Do not store in greenhouses and storage areas for hay, straw, chaff, animal
feed, fertilizers, vegetables or fruit products.)
Store the product on a flat surface.
Store the product out of reach of children and animals.
Store the product where it should be minimal dust and dirt in the area.
Do not disconnect, disassemble or repair by unqualified personnel. Service must be made by qualified
personnel only.
Do not damage the unit in such ways as dropping, deforming, impacting, cutting or penetrating with a sharp
object. It may cause a leakage of electrolyte or fire.
Do not touch if liquid is spilled on the product. There is a risk of electric shock. Handle the battery wearing
the insulated gloves.
Do not step on the product or the product package. The product may be damaged.
Do not place any foreign objects on the top of the Battery Pack.
Do not put the battery pack upside down on the ground.
Do not connect anode and cathode terminal block opposite direction.
Do not charge or discharge damaged battery.
If the battery pack is installed in the garage then ensure the product is above the height of the vehicle
bumper.
The battery pack only be installed indoors. If installed outdoors, do not allow the battery pack to be exposed
to direct sunlight and water source as it may cause:
-Power limitation phenomena in the battery
(with a resulting decreased energy production by the system)
-Premature wear of the electrical/electromechanical components and mechanical components.
-Reduction in performance, service life and possible damage of the battery
Only use the product with supplier recommend inverter and solar charge controller （MPPT）.
Do not connect any AC conductors or Photo-voltaic conductors directly to the battery pack and should be
only connected to the Inverter and solar charge controller （MPPT）.

3
1.2.3 Response to Emergency Situations
The battery comprises multiple batteries and Sophisticated BMS that are designed to prevent hazards
resulting from failures. However, we cannot guarantee their absolute safety if battery is mishandled.
If a user happens to be exposed to internal materials of the battery cell due to damage on the outer casing,
the following actions are recommended.
Inhalation: Leave the contaminated area immediately and seek medical attention.
Eye contact: Rinse eyes with running water for 15 minutes and seek medical attention.
Contact with skin: Wash the contacted area with soap thoroughly and seek medical attention
Ingestion: Induce vomiting and seek medical attention.
If a fire breaks out in the place where the battery pack is installed, perform the following countermeasures:
Fire extinguishing media
Respirator is not required during normal operations.
Use FM-200 or CO2 extinguisher for battery fire.
Use an ABC fire extinguisher, if the fire is not from battery and not spread to it yet.
Firefighting instructions
If fire occurs when charging batteries, if it is safe to do so, power off the switch.
If the battery pack is not on fire yet, extinguish the fire before the battery pack catches fire.
If the battery pack is on fire, do not try to extinguish but evacuate people immediately
Effective ways to deal with accidents
On land: Place damaged battery into a segregated place and call local fire department or service engineer.
In water: Stay out of the water and do not touch anything if any part of the battery, inverter, or wiring is
submerged.
Do not use submerged battery again and contact the service engineer.
1.3 Qualified Personnel
This guide and the tasks and procedures described herein are intended for use by skilled workers only. A
skilled worker is defined as a trained and qualified electrician or installer who has all of the following skills
and experience:
Knowledge of the functional principles and operation of on-grid and off-grid (backup) systems.
Knowledge of the dangers and risks associated with installing and using electrical devices and acceptable
mitigation methods.
Knowledge of the installation of electrical devices
Knowledge of and adherence to this guide and all safety precautions and best practice
Make sure all power is off and wires are disconnected when maintaining/servicing the battery

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2 Product Introduction
2.1 General Information
This Battery system is a high-tech product researched and developed product. With its integration,
miniaturization, light-weight, intelligent centralized monitoring, battery maintenance and management,
unattended, energy conservation and environmental protection, are widely applied in remote access network
equipment, remote switch unit, mobile communication, transmission equipment, home storage and other
areas as a backup power supply.
2.2 Product Features
The battery adopts LiFePO4 as cathode material; LiFePO4 cell life cycle could reach 4000 times at
80% DOD and 80%EOL@25℃.
The system adopts high performance of BMS battery management module. The BMS has theprotection
function in current, voltage and temperature, it also makes a good communication between battery
system and the host equipment;
Monitoring unit will automatically measure the battery charge and discharge current, chargeand
discharge voltage, single cell surface temperature;
Auto-power cut off function. It will have the alarm information if the battery voltage is lower than the
alarm value, when the voltage is too low, it will protect the batteries by automatic power cut off;
The system has a good electromagnetic compatibility;
All intelligent design, equipped with centralized monitoring module, it realizes the computer
management which can communicate with the remote central control center;
Effective combinations of Power control technology with computer which realize real-time monitoring
and control all kinds of parameters and state;
The battery owns Bluetooth and APP functions;
Up to 15 batteries can be connected in parallel.
Flexible installation: Indoor

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2.3 Appernce and Mechanical Drawing
ML-150-12
ML-200-12
ML-200-24

6
ML100-51.2
ML-200-48

7
2.4 Electrical Performance
2.4.1 Battery Pack Parameters
Battery Technology Specification
NO
Model
ML-150-12
ML-200-12
ML-200-24
ML-100-51.2
ML-200-48
1 Battery Rated Voltage 12.8Vdc 25.6Vdc 51.2 Vdc 51.2 Vdc
2
Battery Rated
Capacity
150Ah 200Ah 200Ah 100Ah 200Ah
3 Battery Rated Energy 1.92KWH 2.56KWH 5.12 KWH 5.12KWH 10.24KWH
4 Battery Cell Type Long Cycle Life Prismatic LiFePO4
5 Rated Charge Voltage 14Vdc 28Vdc 56Vdc 56Vdc
6 Max Charge Voltage 14.2Vdc 28.4 56.8Vdc 56.8Vdc
7
Overcharge
Protection
14.4Vdc 28.8 57.6Vdc 57.6Vdc
8
Rated Charge Current
@RT
60A 80A 80A 80A 80A
9
Recommended
Charge current
60A 80A 80A 50A 80A
10
Max Charge Current
@RT
75A 100A 100A 100A 100A
11
Over Charge
Protection Release
Restart or Protection Release
12 Charge Temp Range 0~45℃, （RT=25℃)
13 Output Voltage Range 11~14.4Vdc 22~28.4Vdc 44~56.8Vdc 44~56.8Vdc
14
Rated Discharge
Current @ RT
100A 100A 120A 100A 120A
15
Max Discharge
Current @RT
120A@5S 120A@5S 130A@8S 130A@8S 130A@8S
16
Over Discharge
Protection Release
Charging or Cut off loads and Restart
17
Discharge Temp
Range
-10~55℃，（RT=25℃)
Cycle Life RT 25℃
Measure the capacity after 4000 cycles of standard charge and discharge at 1C current to
2.75V cut-off , ≥80%of Rated Capacity
Measure the capacity after 6000 cycles of standard charge and discharge at 0.5C current to
2.75V cut-off ,
≥
80%of Rated Capacity
18 Weight 15kg 22kg 45kg 45kg 85kg
19 Size
395*110*286
mm
532*207*215
mm
525*600*180m
m
570*525*160mm
1200*450*180m
m
20 Bluetooth & App No Yes
21 Display No LCD
22 Parallel Function Yes Yes
23 Communication No RS485 /CAN
2.4.2 BMS and Display
The batteries are supplied with a LiFePO4 Battery Management System (BMS)that can monitor and
optimized each single prismatic cell during charge & discharge, to protect the battery pack overcharge, over
discharge, short circuit. Overall, the BMS helps to ensure safe and accurate running.
Battery supports up to 16 batteries in parallel. However, it is not recommended to connect more than 4

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batteries in parallel for safety or local electrical rules.
BMS content display in battery LCD, the details are as below:
Main Interface
Maximum and minimum cell voltage / maximum and minimum cell temperature
Press the menu key of main interface to enter the above interface
Select the item and press the menu key to enter the sub option
Click temperature to view detailed data
System status press to enter sub option to view detailed fault

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2.4.3 Bluetooth & App Function
The battery has Bluetooth & app functions. You can easily check the working status of the battery in your
mobile phone.
.
Please log in to our company's website to download the app installation file or consult your local dealer.
2.5 Transportation and Storage
2.5.1Transportation
Based on the character of cell, proper environment for transportation of LiFePO4 battery pack need to be
created to protect the battery. Battery should be stayed in the ware house -20℃～35℃ where it’s dry, clean,
shade, and well-ventilated. The battery should be stored in 45~55% SOC during transportation.
Product is adapted to the truck, boat, transport. When in transport, it should be covered to avoid the sunlight,
and with civilized loading and unloading. With product packaging box allows using any kinds of transport,
battery in loading and unloading process should be light moving gently to prevent throwing, rolling,
pressing. Direct rain and mechanical impact of rain and snow should be avoided in transportation.
2.5.2 Storage
Product storage should be kept in dry warehouse, not sun and rain. The harmful gases are not allowed in the
warehouse, as well as flammable and explosive products and corrosive chemicals. To avoid mechanical
impact, stress and strong magnetic field effect, avoid direct sunlight and away from heat source not be less
than 2m, the packing box should pad off the ground at least 20 cm high, away from the wall, window, or the
air inlet at least 50cm.
TIPS: Under the provisions of the conditions of storage period of more than 3 months of products should
charge once, storage period of more than 6 months products must check and test the capacity, store for more
than 1 years of products must be re-examined, only can be used when is qualified.
1 Storage
Temperature
Less than 1 month -20~35℃
Less than 6 months -10~30℃
2 Storage humidity 45~75%RH

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3 Installation
3.1 Install Location
Required:
There must be no flammable or explosive materials nearby.
The recommended ambient temperature should be within the range of -10 ~45°C.
Battery pack must be installed on walls that are upright and can support battery weight.
Product shall be installed indoor.
Recommended:
The building should be designed to withstand earthquakes.
The install position should be waterproof and properly ventilated area.
Install the product on a flat wall, surface or heavy-duty cabinet. Use proper supports, brackets
and/or straps to handle the weight of the battery.
Install the product out of reach of children and animals.
CAUTION!
If the ambient temperature is outside of the operating range, the battery pack may stop operating to
protect the internal components. The optimal temperature range for the battery pack to operate is
from 10°C to 30°C . Frequent exposure to harsh temperature es may deteriorate the performance
and overall life of the battery and will void the warranty.
3.2 Tools/Safety Gears Required
3.2.1 Tools
The following tools are required to install the battery pack
Precision screwdriver M8 & M10 Torque wrench Inclinometer
Drill Pencil or Marker Hydraulic Tongs
3.2.2 Safety Gears For Personal Protection
It is recommended to wear the following safety gears when handling the battery pack.
Insulated gloves Safety goggles Safety shoes
NOTE
The product is heavy and challenging to lift. Lift handles are recommended.

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3.3 DC Cable Prepared
3.3.1 Choose DC Cable
It is suggested the battery pack be kept as close as possible to the inverter or DC load. The following
is a suggested wiring option for 1meter DC cable.
Please find the following minimum wire size, in case of DC cable longer than 1m, please increase
the cross section of cable to reduce the loss.
NO Model DC Output voltage Wire Gage
1 ML-150-12 12.8 Vdc AWG 3#
2 ML-200-12 12.8 Vdc AWG 3#
3 ML-200-24 25.6 Vdc AWG 2#
4 ML-100-51.2 51.2 Vdc AWG 3#
5 ML-200-48 51.2 Vdc AWG 2#
Performance of any product can be improved by thicker cable and shorter runs, so if in doubt, round
up and keep the length as short as possible.
For more wiring configurations for your specific system, please contact your distributor for more
information.
WARNING
The torque rating range for DC terminal is 9NM-12NM, and the suggested torque rating
is 9NM. Over torqueing may cause the bolt to break.
3.3.2 Fabrication of DC Cable
You can choose a DC cable manufacturing method according your battery connection ports.
a) Copper o-terminal
Manufacturing steps of battery connected power DC line:
Step 1: select the battery model, select the corresponding model wire, and peel off the front section
of the cable for 15mm;
Step 2: use the corresponding M8 or M6 o-terminal;
Step 3: insert the stripped wire into the o-terminal and press it tightly with the crimping fixture;
Step 4: select the box terminal crimping according to the model of circuit breaker between inverter
and battery;
Step 5: install the connecting wire according to the requirements of Chapter3.4.3 (reverse connection
of positive and negative wires is strictly prohibited).
b) Aviation terminal
Step1：Thread the wire into the sheath

12
Step2：Strip the wire skin 12.0 + 0.5 / - 0mm
Step3：①Crimping terminal：Refer to the right figure for dimensions 25mm ² Riveting size requirements.
②3.5-4mm shall be reserved at the front end of the crimping hole without pressure riveting, and the
tail shall be flattened. The pressure shall be maintained for 2 seconds during crimping.
Step4：Install the riveted terminal into the plug body.
Step5：Install the upper cover of the plug into the plug body
Step6：Install the sheath into the plug body and complete the assembly.
Tips: The holding force of the harness after riveting is 25mm ² ≥1900Nmin；If the holding force is
insufficient or the terminal is excessively extended, please adjust the riveting size appropriately.
25mm riveting size

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3.4 Battery Pack Installation
CAUTION!
Make sure that the inverter AC and DC disconnects are turned off before connecting the power
cable to the battery pack.
NOTE!
USE PROPER BRACKETS, SUPPORTS, AND/OR STRAPS TO HANDLE THE WEIGHT OF
THE BATTERY. WELL VENTILATED, HEAVY DUTY BATTERY CABINET IS
RECOMMENDED.
3.4.1 Battery Installation
Wall Mounted Battery Installation
Step1：Use an M8 drill bit with a drilling depth of about 40mm, and drill the corresponding
hole position according to the following battery installation dimensions;
ML-200-24 Installation size
ML-100-51.2 Installation size

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Step2：Move the battery to the corresponding position and fix the battery with M5 cross flange self
tapping screw.
Vertical Battery Installation
Step1：Use M8 drill bit with drilling depth of about 40mm, and drill the corresponding hole position
according to the following battery installation dimensions;
Step2：Move the battery to the corresponding position and fix the battery with M6 expansion bolt.
Drill a hole
Put expansion pipe into the hole
Insert screw into the expansion pipe

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3.4.2 Battery Parallel Installation Guide
Wall Mounted Battery Parallel Installation
Tips: Hole drilling installation shall be carried out according to the installation method of single
battery in Chapter 3.4.1. Pls note the distance of batteries.
Vertical Battery Parallel Installation
Tips：Hole drilling installation shall be carried out according to the installation method of single
battery in Chapter 3.4.1.Pls note the distance of batteries.
3.4.3 System Installation Guide
Connect the parallel batteries with wires according to the following schematic diagram (the following is
a operation diagram of two parallel batteries)

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System Connection Diagram
4 Commissioning and operation
4.1 Operating Conditions
Installation Location Indoor (Wall-Mounted or Flat-Mounted)
Operating Temperature 14 to 113°F ( -10 to 45°C)
Operating Temperature (Recommended) 59 to 86°F (15 to 30°C)
Humidity 15% to 85%
Altitude Max. 6,562ft (2,000m)
Cooling Strategy Natural Convection
4.2 Battery Commissioning Steps
Step 1: Check whether the battery power line is connected correctly, whether the connecting nut is
fastened in place and whether the inverter part is connected normally.
Step 2: Check whether the communication harness is connected normally as required
Step 3: Setting a corresponding communication protocol between and battery and inverter. (Please
see 4.3 Communication Protocol Setting)
Step 4: Set the dial switch: when the host battery communicates with an inverter, the address of the
host battery shall be set to 1, and other parallel batteries shall be set in sequence (Please see 4.4.2 dial
switch setting)
Step 5: After the preparation is completed, turn on the battery switch → circuit breaker → inverter
load switch in sequence
Step 6: Check whether the system works normally. If it is abnormal, check it in sequence or contact
the local dealer

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CAUTION
1. Please strictly follow the above steps for debugging
2.If not using the battery pack for a long time or if there is any fault on the pack, turn off the power
switch.
4.3 Communication Protocol Setting
You can choose the below two ways to select your matched inverter communication protocol.
4.3.1 Setting By Battery LCD
Through the button on the right side of the battery display screen, enter "sys setting →com setting →
-- C" successively to select the inverter protocol. The list of communication protocols is as follows:
Communication Protocols List
CAN Supplier Protocol RS485 Supplier Protocol
0 reserve 0 Surge
power Szxj Battery Modbus Protocol- V1.13
1 PYLON CAN-Bus-protocol-PYLON-low-
voltage-V1.2-20180408 1 PYLON PYLON low voltage protocol
RS485 V3.5 20200227
2 Growat Growatt Bms CAN-BUS-protocol-
low-voltage-v1.08 2 Growat
SPF-
RS485_protocal_1xSxxP_ESS_
V2.01
3 Sorfar
Low voltage BMS general CAN
protocol description (standard
frame)V2.1.003
3 reserve reserve
4 GoodWe BMS Protocol (CAN) for Solar
Inverter Family V1.2 4 PACE PACE BMS Modbus Protocol for
RS485V1.3
5 SMA SMA-Sunny Island-CAN 5 reserve reserve
6 Luxpowe
rtek Luxpowertek Battery CAN Protocol 6 Voltronic
Voltronic Inverter and BMS 485
Communication Protocol
20201208
7 MUST MUST-PV1800F-CAN
Communication Protocol1.04.04 / / /
8 REVO REVO-CAN1.0-211111 / / /
9 reserve reserve / / /
A reserve reserve / / /
B VICTRO
N CAN-Bus-protocol-VICTRON- low-voltage-V1.2-20180408 / / /
C INVT INVT_5K_BMS_ProtocolV1.01 1 / / /
D Kstar KSPP CAN_Protocol-V1.11 / / /

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After entering -- C page, set the communication protocol. The display screen protocol display is
represented by three hexadecimal digits. The first number represents RS485 protocol, the second
number is reserved, and the third number is CAN protocol option, as shown in the below picture.
The detailed steps of modifying the agreement are as follows:
1. The inicial page displays the default protocol of the battery. If it needs to be modified, first click
"Enter" and the first number is in the flashing state. At the time, enter the RS485 protocol selection
state. Select the corresponding number or letter through the "up" key / "down" key and compare with
the Communication Protocol List in the above table, so as to select corresponding inverter protocol
(RS485) is required. The selection numbers/letters range is 15 bits(0-D).
2. After selecting RS485 protocol, click "Enter" to automatically jump to the third number. At the
time, the third number is in flashing state and enters the CAN protocol selection state. The selection
range is 15 bits(0-D). Select corresponding inverter protocol (CAN) is required by pressing "up" key
/ "down" key and referring to the number or letter corresponding to the Communication Protocol
List.
3. After selecting the CAN protocol, you need to click the "enter" key. After a few seconds, the
protocol is successfully replaced and saved without power on again.
4.3.2 Setting By BMS Host Software(PC)
BMS Host software need to install with PC. Log in to our website or consult the local dealer to obtain
the BMS upper computer software, but we suggest that the upper computer software should be used
by professional installers.
When connect the Master or RS485 communication port from the battery to a computer, the host
software information displays on 7 different tabs:
Home: SOC%, voltage, current, cycles, capacity and running status, cell balancing，temperature
Date: Real Data Recode
RS485
CAN