Inventus Power U1LiFePRO M-12V40-U1 User manual

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+1 877.423.4242
Inventus Power, Inc.
1200 Internationale Parkway
Woodridge, IL 60517
Designed & Manufactured by
U1LiFePRO™
Quick Start Guide
M-12V40-U1
M-24V20-U1

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U1LiFePRO™ Quick Start Guide
Applicable Models
Document Information
Inventus Power® and U1LiFePRO™ are trademarks of Inventus Power.
Copyright© 2021 Inventus Power All rights reserved.
Technical Support
If you have any technical questions regarding the U1LiFePRO™ battery, please contact our
technical support team at:
Phone: [phone]
E-mail: [e-mail]
Release Date Revision Scope of Change
2022-08-25 V2.2 Minor edits to version 2 release
Model Part No. (SMBus/CANopen) Part No. (RS485/CANopen)
M-12V40-U1 57575-101 N/A
M-24V20-U1 N/A 57623-001

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Quick Start Guide
Please read the detailed User Manual first and refer to this guide as another quick resource.
Mechanical Features
Battery Terminal Torque Rating
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
If in doubt, please consult with
Inventus Power Technical Support
([e-mail])
on further instructions on the signal
cable connections to the host system.
1 2 3 4
5
# Description
1Positive Terminal
2Signal Connector #1
3Signal Connector #2
4Negative Terminal
5Battery State of Charge Indicator
RIA Connector P/N: AJT35I8821-030
Model Terminal Type Wrench
Size Torque (Nm)
M-12V40-U1
M-24V20-U1 ISO M6 x 1.0 x 16mm Bolt 10mm 3.4 ± 0.5 Nm

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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
M-12V40-U1 M-24V20-U1
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 5 seconds
Press the SOC button
for 20 seconds
Wake-Up & Ship Mode
Battery 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
Connect pins 4 & 6
to exit Ship Mode
12 3 4 5 67 8

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Charging
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 constant 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.
Charge Voltage / Current
Pin Definition
Pin Definition (M-12V40-U1)
Pin Definition (M-24V20-U1)
Model M-12V40-U1 M-24V20-U1
Charge Voltage 14.4 VDC 28.0 VDC
Recommended Charge Current 20A (0.5C) 10A (0.5C)
Maximum Charge Current 40A (1.0C) 20A (1.0C)
Pin # Symbol Description
1SMBUS SMBDAT; leave floating when using CAN
2SMBUS 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
7VCANH_BATT CAN High (Battery)
8VCANL_BATT CAN Low (Battery)
Pin # Symbol Description
1A-RS485 RS485 Data A; leave floating when using CAN
2B-RS485 RS485 Data B; leave floating when using CAN
3not used
4VINTLK For charging, connect VGND to VINTLK
5VWAKE For discharging, connect VGND to VWAKE
6VGND Ground reference
7VC AN H _ BATT CAN High (Battery)
8VC AN L _ BAT T CAN Low (Battery)
Power and Communication Cables
Power cables are not included with the battery unless a integration kit is purchased. Choose the
appropriate power cable size based on the system load requirements. Refer to ampacity table
in User Manual when selecting power cables. If your application requires communication, please
use any o-the-shelf cable that is compatible with RIA Connector P/N: AJT3518821-030.

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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. 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.
4. Attach the negative cable from the device to the negative terminal on the battery.
5. Attach the positive cable from the device to the positive terminal on the battery.
6. Attach the signal communications cable to the RJ45 ports if needed.
7. 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 10 batteries.
Parallel connections
The PROformance batteries can be connected in parallel to increase your energy requirements.
You may connect up to 10 batteries for the M-12V40-U1 and M-24V20-U1 models. These batteries
cannot be connected in series. Refer to wiring diagram below.
Single Install Parallel Connection
Pack (-)
Signal Cable
(System)
Pack (+)
Signal Cable
(System)
Pack (+)
Pack (-)
Signal Cable
(Pack to Pack)

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Battery Modes
LED Status
LED Indicator Status SOC
81 – 100%
61 – 80%
41 – 60%
21 – 40%
11 – 20%
1 to 10%
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].
Sleep Mode
Disconnect pins 4, 5 & 6
to put into Sleep Mode
Charge Mode
Connect pins 4 & 6
to enter Charge Mode
Discharge Mode
Connect pins 5 & 6
to enter Discharge Mode
12 3 4 5 67 8 12 3 4 5 67 8 12 3 4 567 8
Mode Name VWAKE VINTLK Action Mode Description
Sleep O
(High or Hi-z)
O
(High or Hi-z)
Disconnect pins 4, 5, and
6 to enter Sleep Mode
Low power mode,
MOSFETs open
Charge O
(High or Hi-z)
On
(Low)
Connect pins 4 and 6 to
enable charging
Charge allowed*,
MOSFETs closed
Charge On
(Low)
On
(Low)
Connect pin 6 to pins 4
and 5 to enable charging
Charge allowed*,
MOSFETs closed
Discharge On
(Low)
O
(High or Hi-z)
Connect pins 5 and 6 to
allow discharging
Discharge allowed**,
MOSFETs closed
Ship O
(High or Hi-z) N/A Press the SOC button and hold for 20 sec
Low power mode,
MOSFETs open
Shutdown N /A N/A Apply charge voltage to
exit Shutdown
Lowest power mode,
MOSFETs open