Midtronics Inc. 7000 Monroe Street Willowbrook, IL 60527
www.midtronics.com
Page 1
Quick Reference Guide
167-001100EN-A
April, 2023
RIVIAN CPX-900
Battery & Electrical Diagnostic Analyzer
Quick Reference Guide
April, 2023
167-001100EN-A
Important - Before You Start
• Before operating the analyzer, refer to Instruction Manual
• Always follow battery manufacturer instructions and BCI
(Battery Council International) safety recommendations
• For additional support go to support.cpx900.com
Consent to Collection and Use of Data:
You agree that Midtronics, Inc. may collect, store, transmit,
and use technical data and related information, including but
not limited to technical information about this device, system
and application software, and accessories, that is gathered
periodically to facilitate the provision of product support,
product improvements, product development, and other
services related to use of this device. If electing to collect
personal data (such as e-mail addresses) the user is solely
responsible for obtaining any necessary permissions, and agrees
to indemnify and hold harmless Midtronics, Inc. Its subsidiaries,
ocers, employees and agents from any liability associated with
collecting, storing, and transmitting such personal data.
Safety Power Capacity™ (SPC™)
™
The testing process uses proprietary 12V Safety Power Capac-
ity™ (SPC™) diagnostic technology to determine the battery
State of Charge and Reserve Capacity. This additional analysis
can take up to 60 seconds to complete
IMPORTANT: Always begin each test by connecting the
tester clamps to the battery being tested. The testing
process begins as soon as the clamps are connected.
Connections And Data Ports
Display Screen
Cooling Vent
Arrow Keys &
Power Button
Micro-USB Port
Thermal Printer
(optional)
Temperature
Sensor
VIN Barcode
Scanner
(optional)
Clamp Tabs
User-replace-
able AA batter-
ies
User-replace-
able test
clamps
Main Menu
12.74V CPX-900
In Vehicle Test
Out of Vehicle
Test
History
Messages
Sengs
Version
Menu Bar
12.74V
Battery Voltage
(if connected)
WiFi signal strength
Bluetooth
connectivity status
Controller internal
battery status
Main Menu Selection Area
When displayed, the Screen Arrows show which ARROW
key on the keypad to press to display other icons, screens,
or item in a list.
Additional Screens
The dots at the bottom or side of a menu or results screen
indicate additional screens are available.
Screen 1
Screen 2
Screen 3
Press or
Screen 1
Press or
Screen 2
Test Preparation
Before starting the test visually inspect the battery for:
• Cracked, buckled, or leaking case.
• Corroded, loose, or damaged cables and connections.
• Corrosion, dirt, or acid on the battery terminals or case top.
• Corroded or loose battery tray and hold-down xture.
Risk of explosive gases
Batteries generate explosive gases
during normal operation, and when
discharged or charged. Follow all
manufacturers’ instructions and
BCI (Battery Council International)
safety recommendations.
Wash hands after handling.
REQUIRED BY CALIFORNIA PROP. 65:
Battery posts, terminals, and related
accessories contain lead and lead
compounds, chemicals known to the
state of California to cause cancer
and birth defects or other reproduc-
tive harm.
Before Testing:
Disconnect First Responder Loop and Ground Cables.
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