Inventus Power U1LiFePRO S-12V40-U1 User manual

inventuspower.com
[email protected]
+1 877.423.4242
Inventus Power, Inc.
1200 Internationale Parkway
Woodridge, IL 60517
Designed & Manufactured by
U1LiFePRO™
Battery User Manual
S-12V40-U1
S-24V20-U1

2
U1LiFePRO™ Battery User Manual
Applicable Models
Document Information
Environmental Regulations
The battery pack is compliant with the following environmental regulations:
• EU Directive 2002/95/EC for Restriction of Hazardous Substances (RoHS)
• EU Directive 2006/66/EC on batteries and accumulators and waste batteries and accumulators
• EU Directive 1907/2006 on the Registration Evaluation Authorization and Restriction of
Chemicals (REACH)
• Management Methods for Controlling Pollution Caused by Electronic Information Products
Regulation (China RoHS)
Model Part No. (SMBus/CANopen) Part No. (RS485/CANopen)
S-12V40-U1 57575-201 N/A
S-24V20-U1 N/A 57623-301
Release Date Revision Scope of Change
2022-08-25 V2.3 Minor edits to version 2 release

3
U1LiFePRO™ Battery User Manual
DOCUMENT NOTICE: The information contained in this manual is the property of Inventus Power
and is subject to change without notice. Inventus Power reserves the right to make changes in
the design of its products or components as progress in engineering and manufacturing may
warrant. It is the customer’s responsibility to satisfy itself as to whether the information contained
herein is adequate and sucient for a user’s particular use. It is the further responsibility of
each user to ensure that all applications of Inventus Power products are appropriate and safe
based on conditions anticipated or encountered during use. This document does not create
any additional obligation for Inventus Power and does not constitute additional warranties and
representations.
Technical Support: For any issues, please email [e-mail]
Inventus Power® and U1LiFePRO™ are trademarks of Inventus Power.
Copyright© 2021 Inventus Power All rights reserved.
Please read all contents of this User’s Manual prior to the installation
of Inventus Power U1LiFePRO™ Batteries.
CANOpen Controller Area Network Bus communication CCCV Constant Current Constant Voltage
RS485 Standard type of serial communication protocol OTC Over Temperature Charging
SMBus System Management Bus OTD Over Temperature Discharging
OCV Over Charge Voltage TCO Thermal Cuto
AFE Analog Front End SOT Safety Over Temperature
BMS Battery Management System SOC State of Charge
CC Constant Current OCV Open Circuit Voltage
CID Current Interrupt Device RT Room Temperature
COV Cell Over Voltage Ah Ampere Hour
DOD Depth of Discharge CUV Charge Under Voltage
OCC Over Current Charge LED Light Emitting Diode
Abbreviations

4
Contents
Abbreviations ................................................................................................................................ 3
Safety Information ....................................................................................................................... 5
Personal Protective Equipment / Installation Tools ........................................................... 6
Unboxing the Battery .................................................................................................................. 6
Mechanical Features .................................................................................................................... 7
Battery Serial Number Format ................................................................................................. 7
Product Dimensions .................................................................................................................... 7
Wake-Up & Ship Mode ................................................................................................................ 8
Wake from Shutdown Mode ...................................................................................................... 8
Selecting Power Cables .............................................................................................................. 9
Communication Cables ............................................................................................................... 9
Selecting a Battery Charger .................................................................................................... 10
Connecting the Battery ............................................................................................................. 11
Battery Terminal Torque Rating .............................................................................................. 11
Module Configuration ................................................................................................................ 12
Communications ......................................................................................................................... 14
Pin Definition ................................................................................................................................ 15
Battery Modes (S-12V40-U1)..................................................................................................... 16
Battery Modes (S-24V20-U1).................................................................................................... 17
Battery State of Charge Indicator .......................................................................................... 18
Disconnecting the Battery ........................................................................................................ 19
Battery Specifications ................................................................................................................ 19
Battery Performance Data ....................................................................................................... 20
Maintenance and Storage ......................................................................................................... 21
Transporting Lithium-ion Batteries ....................................................................................... 22
Emergency and First Aid Procedures ................................................................................... 24
Troubleshooting ......................................................................................................................... 25
Serial Number Record ............................................................................................................... 26
Warranty Violations ................................................................................................................... 27
Recycling ...................................................................................................................................... 28
Technical Support ...................................................................................................................... 28

5
DO DO NOT
Symbol Definition
Important safety information will follow.
DO NOT dispose of battery in fire.
RECYCLE! Battery may require recycling in accordance with local laws. Regardless,
recycling is encouraged. Contact local regulatory authorities for more information.
DO NOT include battery with lead acid battery recycling.
DO NOT dispose of battery in the trash.
Shock Hazard - Labels may be located on or inside the equipment to alert people that
dangerous voltage may be present.
Burn Hazard - Labels may be located on or inside the equipment to alert people that
surface temperature may be dangerous.
• Always wear proper personal protective
equipment
• All installation should be performed by a
qualified service technician
• Use only insulative tools required for
assembly
• Dispose of the battery properly in
accordance with local, state, and federal
regulations
• Extinguish any flames with a carbon
dioxide, dry- powder fire extinguisher, and
cover with copious amounts of water
• Do not use with other types of batteries
connected with the PROTRXion™ products
• Do not short circuit the battery terminals
• Do not operate or store the battery beyond
the operating limits
• Do not over-charge or over-discharge the
battery
• Do not crush, puncture, or drop the battery
• Do not immerse battery in water
• Do not burn or expose battery to fire
• Do not charge battery near flammable
materials, liquids, and surfaces
• Do not alter, disassemble, modify, or open
battery
• Do not wear jewelry (i.e. rings, watches,
bracelets, necklaces) when handling or
working near the battery
• Do not lift battery by the terminal cables
• Do not operate if battery has been damaged
in any way during shipping
Safety Information

6
Personal Protective Equipment / Installation Tools
Before installation or maintenance of your batteries, the following equipment
is required:
• Rubber gloves
• Safety goggles or other eye protection
• Insulated Torque Wrench / Philips Screwdriver
• Voltmeter
Unboxing the Battery
Before You Start
Please read all the safety and warranty information provided in this document prior to installing
and/or operating the battery.
IMPORTANT: Remove all jewelry or other metallic objects from your hands and
body during the installation and removal of the battery packs and peripherals.
What’s in the Box?
• Inventus Power U1LiFePRO™ battery
• UNDOT 38.2 / IATA approved packaging
• QR Code Slip to access manuals, datasheets, and more supporting documents
• Terminal bolts (pre-installed on battery)
• Protective battery terminal covers
Note: All power and signal cables must be purchased seperately.
Unpacking
• If possible, do not discard the packaging. This packaging is designed for the safe transporta-
tion of lithium-ion batteries compliant with gloabl shipping regulations and can be reused if
the battery must be transported to a new location.
Visual Inspection
• Please inspect each battery carefully. Report any damage from shipping to Inventus Power
immediately.

7
Mechanical Features
S-12V40-U1 / S-24V20-U1
Battery Serial Number Format
FF Factory Location (TJ: Tijuana, Mexico; QX: QingXi, China)
XXXXXXXX Work Order Number (8 digits)
SSSSS Battery Serial Number (00001-65535)
YYYYMMDD Mfg Date (Year, Month, and Day)
Product Dimensions
1 2 3 4
5
# Description
1Positive Terminal
2Signal Connector #1
3Signal Connector #2
4Negative Terminal
5Battery State of Charge Indicator
Specification S-12V40-U1 S-24V40-U1
Length 190±1 mm
Width 132.8±1 mm
Height 183.5±1 mm

8
Wake from Shutdown Mode
To exit Shutdown Mode, apply battery charge voltage pulse to the positive and negative termi-
nals for >1 second.
Note: Many intelligent chargers sense voltage at the battery terminals prior to applying charge
voltage and thus will not wake the battery from Shutdown Mode. In this case, it is recommend-
ed to use a power supply set to the appropriate charge voltage to wake the battery from Shut-
down Mode.
14.4V for 1s 28.0V for 1s
S-12V40-U1 S-24V20-U1
Press the SOC button
for 5 seconds
TO WAKE UP THE BATTERY
FROM SHIP MODE
TO PLACE IN SHIP MODE
We recommend to place the battery
in Ship Mode when it is not used to
prevent self-consumption current
drain and extend storage life.
Press the SOC button
for 20 seconds
Wake-Up & Ship Mode
S-12V40-U1 can
also receive a wake
up signal from the
signal connector
by shorting pin 6
(VGND) to pin 4
(VINTLK) to wake
up battery from
Ship Mode.
Wake-Up
(S-24V20-U1)
Connect pin 4 to external V+
& pin 6 to external V-
to exit Ship Mode
12 3 4 5 67 8
+-
S-24V20-U1 can
also receive a wake
up signal from the
signal connector
by connecting pin
6 (VGND) and pin
4 (VINTLK) to a
shared external volt-
age source to wake
from Ship Mode.
Wake-Up
(S-12V40-U1)
Connect pins 4 & 6
to exit Ship Mode
12 3 4 5 67 8

9
Selecting Power Cables
Choose the appropriate power cable size based on the system load requirements. Cables are
rated at ambient temperature of 30°C (86°F) per the table below. When connected in parallel
configuration, it is preferable for all cables to be the same length and wire gauge.
Communication Cables
If your application requires communication, please use any o-the-shelf cable that is compatible
with RIA Connector P/N: AJT3518821-030.
Copper Wire Gauge (AWG) Metric Wire Cross-Section (mm2) Ampacity (A)
14 2.081 20
12 3.309 25
10 5.261 30
8 8.366 50
6 13.302 65
4 21.151 85
3 26.671 100
2 33.632 115
1 42.409 130
0 (1/0) 53.460 150
00 (2/0) 67.400 175

10
Selecting a Battery Charger
Many types of lead acid chargers are compatible with our U1LiFePRO™ batteries and safely charge
between 0°C to 55°C (32°F to 131°F). The charger maximum voltage output should match the
maximum charge voltage of the battery system and should not exceed charge voltage as shown
in the table below. It is recommended to charge the battery prior to installation. Consult with
Inventus Power for recommendation on selecting a battery charger.
After the charger has been selected, first connect the (-) terminal to the battery, then the (+)
terminal. Once the terminals have been connected, connect the CAN communication to the
battery to optimize the charger performance (preferred chargers recommended by Inventus
Power).
Charge Voltage / Current
Float Charge Voltage
Charger Current
Max charge current rate will vary depending on ambient temperature and battery state of charge.
Charging above the recommended current rate may impact the battery cycle life. For more de-
tailed information on charging profile, please discuss with Inventus Techincal Support.
When choosing an intelligent charger, please discuss with Inventus Technical Support on suitable
o-the-shelf charger solutions.
Model S-12V40-U1 S-24V20-U1
Max Charge Voltage 14.4 VDC 28.0 VDC
Series Charge Voltage (Two Batteries) N/A 56.0 VDC
Recommended Charge Current 20A (0.5C) 10A (0.5C)
Maximum Charge Current 40A (1.0C) 20A (1.0C)
Model S-12V40-U1 S-24V20-U1
Float Voltage <13.4V <26.8V

11
Connecting the Battery
1. Remove power to the vehicle/device prior to installation of the U1LiFePRO™ battery.
2. Remove all other batteries from the system prior to replacing them with U1LiFePRO™
batteries.
3. Ensure the U1LiFePRO™ battery is in Ship Mode to remove power for safe install.
4. Remove the protective battery terminal covers from the terminals. Retain these covers in
the event that you need to remove or move the battery at some future time.
5. Attach the negative cable from the device to the negative terminal on the battery.
6. Attach the positive cable from the device to the positive terminal on the battery.
7. Attach the signal communications cable to the RJ45 ports if needed.
8. If the battery charger is integrated with the device drawing power from the U1LiFePRO™
battery, then please follow manufacturers recommended sequence for each battery connection.
Please contact Inventus Technical Support if the system requires more than 6 batteries.
Battery Terminal Torque Rating
CAUTION: When using bolts to engage the battery’s threaded holes, use the appropriate
number of flat and lock washers to allow for as much thread engagement as possible with-
out bottoming out the bolt. Over-tightening battery terminal bolts could result in damage to
battery terminals. Under-tightening battery terminals could result in excessive heating of the
terminals.
CAUTION: Do not connect batteries with reversed battery leads i.e. with the
pack positive terminal connected to the source or system negative terminal or
the pack negative terminal connected to the source or system positive terminal.
Failure to follow proper connection sequence can damage the battery
and void the warranty.
Model Terminal Type Wrench
Size Torque (Nm)
S-12V40-U1
S-24V20-U1 ISO M6 x 1.0 x 16mm Bolt 10mm 3.4 ± 0.5 Nm

12
Module Configuration
Warning: Do not connect S-12V40-U1 batteries in series. Do not connect more than two
S-24V20-U1 batteries in series. Connecting in series exceeds the voltage limit of the integrated
safety protection circuitry and can damage the battery and void the warranty.
Parallel connections
Two or more batteries can be connected together in parallel to increase the capacity of the
battery system. The negative terminal of the first battery is connected via jumper cable to the
negative terminal of the second battery. Use another set of jumper cables with the same wire
gauge to connect the positive terminals of both batteries together. Connect a signal cable from
one signal port to another. This connection process can be repeated to up to the max scalability
or until the desired capacity is reached. Finally, use another set of power cables with the same
wire gauge to connect the positive terminal from the first battery and the negative terminal from
the last battery in the parallel chain to the host system. This will ensure proper balancing of the
system. See parallel connection diagram below.
Note: This battery has terminals always on much like a lead acid battery, so connecting the
signal port is not required. Inventus Power recommends connecting the signal ports, especially
when connecting more than one battery together, to enhance battery life and performance.
Note: CAN lines in the battery pack DO NOT have internal termination resistance. It is
recommended to properly terminate the system and battery CAN Bus lines following the CAN
Bus termination standards. For any technical questions about properly adding termination
resistance, please contact technical support at [e-mail].
Single Install Parallel Connection
Pack (-)
Signal Cable
(System)
Pack (+)
Signal Cable
(System)
Pack (+)
Pack (-)
Signal Cable
(Pack to Pack)

13
Series connection (S-24V20-U1 Models Only)
Up to two S-24V20-U1 batteries can be connected in series to increase the voltage of the
battery system. The negative cable of the first battery is connected via jumper cable to the
positive terminal of the second battery. Use another set of power cables with the same wire
gauge to connect the open positive terminal of the first battery and the open negative terminal
of the second battery to the host system. Finally, connect a signal cable from one signal port to
another and connect another signal cable to the host system.
Note: CAN lines in the battery pack DO NOT have internal termination resistance. It is
recommended to properly terminate the system and battery CAN Bus lines following the CAN
Bus termination standards. For any technical questions about properly adding termination
resistance, please contact technical support at [e-mail].
Series Connection
Pack (-)Pack (+)
Signal Cable
(Pack to Pack)
Signal Cable
(System)
Note: This battery has terminals always on much like a lead acid battery, so connecting the
signal port is not required. Inventus Power recommends connecting the signal ports, especially
when connecting more than one battery together, to enhance battery life and performance.
Power Cable
(Pack to Pack)

14
Communications
• Each U1LiFePRO™ battery uses two RJ45 connectors to support signal communication with
the host system.
• Communications are disabled until the battery is awakened by the charger applying a charge
voltage.
• Voltage, current, temperature, capacity, cycle count, state of charge, and fault codes can be
read from the battery using SMBus, RS485, or CANopen communication.
• A signal interface is used as the communication interface between the battery and a connected
device.

15
Pin Definition (S-12V40-U1)
Pin Definition (S-24V20-U1)
Pin Definition
Pin # Symbol Description
1A-RS485 RS485 Data A; leave floating when using CAN
2B-RS485 RS485 Data B; leave floating when using CAN
3PACK_S_ID Pack series conguration ID, leave oating when pack series
conguration is not implemented.
4VINTLK Interlock input pin - active high voltage (3.3V to 28V) to enable charging
5VWAKE Wake up pin - active high voltage (3.3V to 28V) to enable discharging
6VGND Ground reference for wake and interlock pins
7VC AN H _ BATT CAN High (Battery)
8VC AN L _ BAT T CAN Low (Battery)
Pin # Symbol Description
1SMBDAT SMBDAT; leave floating when using CAN
2SMBCLK SMBCLK; leave floating when using CAN
3not used
4VINTLK For charging, connect VGND to VINTLK
5VWAKE For discharging, connect VGND to VWAKE
6VGND Ground reference to pull wake and interlock pins low
7VCANH_BATT CAN High (Battery)
8VCANL_BATT CAN Low (Battery)
If in doubt, please consult with
Inventus Power Technical Support
([e-mail])
on further instructions on the signal
cable connections to the host system.
RIA Connector P/N: AJT35I8821-030

16
Battery Modes (S-12V40-U1)
*Discharge also allowed in this mode unless discharge fault condition is detected in which case discharge MOSFETs are
opened.
**Charge also allowed in this mode unless charge fault condition is detected in which case charge MOSFETs are opened.
Mode Name VWAKE VINTLK Action Mode Description
Sleep,
Terminals ON
O
(High or Hi-z)
O
(High or Hi-z)
Disable pin 5 and wait 5
minutes to enter Sleep
Mode
Sleep, Terminals ON
MOSFETs open
Charge N/A N/A Charge current ≥500mA
to enter charge mode
Charge allowed*,
MOSFETs closed
Discharge N/A N /A
Discharge current >
500mA to enter
discharge mode
Discharge allowed**,
MOSFETs closed
Ship N/A N/A
Press the SOC button
and hold for 20 sec to
place in Ship Mode
Low power mode,
MOSFETs open
Shutdown N /A N /A Apply charge voltage to
exit Shutdown
Lowest power mode,
MOSFETs open
Charge Mode
Charge Current ≥500mA
to enter Charge Mode
Discharge Mode
Disharge Current > 500mA
to enter Discharge Mode
Sleep Mode
(Terminals ON)
Disable pin 5 & wait 5 min
to enter Sleep Mode
12 3 456 7 8

17
Battery Modes (S-24V20-U1)
*Discharge also allowed in this mode unless discharge fault condition is detected in which case discharge MOSFETs are
opened.
**Charge also allowed in this mode unless charge fault condition is detected in which case charge MOSFETs are opened.
Mode Name VWAKE VINTLK Action Mode Description
Sleep,
Terminals ON
O
(Low) N /A
Disable pin 5 and wait 5
minutes to enter Sleep
Mode
Sleep, Terminals ON
MOSFETs open
Charge N/A N/A Charge current ≥500mA
to enter charge mode
Charge allowed*,
MOSFETs closed
Discharge N/A N /A
Discharge current >
500mA to enter
discharge mode
Discharge allowed**,
MOSFETs closed
Ship N/A N/A
Press the SOC button
and hold for 20 sec to
place in Ship Mode
Low power mode,
MOSFETs open
Shutdown N /A N /A Apply charge voltage to
exit Shutdown
Lowest power mode,
MOSFETs open
Charge Mode
Charge Current ≥500mA
to enter Charge Mode
Discharge Mode
Disharge Current > 500mA
to enter Discharge Mode
Sleep Mode
(Terminals ON)
Disable pin 5 & wait 5 min
to enter Sleep Mode
12 3 4567 8

18
Battery State of Charge Indicator
There are (5) LED and one button on each module to be used for SOC and fault indication. To the
far left is the button followed by the LED to the right as shown in the figure below. The LED will
capable of representing a range for the remaining SOC. The LED will remain lit for 5 seconds after
the button is pressed before turning o unless the SOC is 10% or less than the first LED will blink
on and o for 10 seconds. The LED will come on when the following conditions are detected:
LED Indicator Status Battery State of Charge
81 – 100%
61 – 80%
41 – 60%
21 – 40%
11 – 20%
1 to 10%

19
Disconnecting the Battery
CAUTION: Failure to follow proper disconnection sequence can damage the
battery and void the warranty.
1. Power o the machine/device prior to the removal of the U1LiFePRO™ battery.
2. If the battery charger is integrated with the device drawing power from the U1LiFePRO™
battery, then please follow manufacturers recommended sequence for battery disconnect.
3. Disconnect the communications cable from the RJ45 port if one is attached.
4. Disconnect the positive cable from the positive terminal on the battery.
5. Disconnect the negative cable from the negative terminal on the battery.
Battery Specifications
Specification S-12V40-U1 S-24V20-U1
Cell Chemistry Lithium Iron Phosphate
Voltage
(Nominal / Max Charge) 12.8V / 14.4V 25.6V / 28V
Energy 510Wh / 39Ah 502Wh / 20Ah
Continuous Discharge Current
(per module) 0.51kW / 40A 0.77kW / 30A
Peak Pulse Discharge
(@ 25°C) 80 Amps < 10secs 60 Amps < 10secs
Cycle Life
(@ 25°C) 3,000 @ 80% DoD 3,000 @ 80% DoD
Charge Operating Temperature 0°C to +55°C
Discharge Operating
Temperature -20°C to +60°C
Operating Humidity 5% to 95%
Scalability Parallel: 6 max Series: 2 max
Parallel: 6 max
Weight
(max) 6.5kg (14.3lbs) 6.5kg (14.3lbs)
Communication SMBus / CANopen RS485 / CANopen
Certifications UN38.3, FCC Class B, UL1642, UL2054
IEC62133, CE, RoHS, WEEE

20
Battery Performance Data
0
20
40
60
80
100
120
0 1 2 3 4
State of charge (%)
Charge Time (hours)
0.3C 0.5C 1.0C
M-12V40-U1
Charging Performance
Test Condition: Ambient Temperature
8
9
10
11
12
13
14
15
0 5 10 15 20 25 30 35 40 45
Voltage (V)
Capacity (Ah)
0.3C 0.5C 1.0C
M-12V40-U1
Capacity vs Discharge Rate
Test Condition: Ambient Temperature
18
19
20
21
22
23
24
25
26
27
28
0
5 10 15 20 25
Voltage (V)
Capacity (Ah)
0.3C 0.5C 1.0C
M-24V20-U1
Capacity vs Discharge Rate
Test Condition: Ambient Temperature
1.5C
0
20
40
60
80
100
120
0 1 2 3 4
State of charge (%)
Charge Time (hours)
0.3C 0.5C 1.0C
M-24V20-U1
Charging Performance
Test Condition: Ambient Temperature
S-12V40-U1
Capacity vs Discharge Rate
Test Condition: Ambient Temperature
S-12V40-U1
Charging Performance
Test Condition: Ambient Temperature
S-24V20-U1
Charging Performance
Test Condition: Ambient Temperature
S-24V20-U1
Capacity vs Discharge Rate
Test Condition: Ambient Temperature