Support Document

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The IOX-BATTERY is a backup solution for GO9® devices and GO9 RUGGED™ devices (with adapter). The IOX™ starts working when a GO device is unplugged or loses the OEM vehicle/equipment power supply. The IOX acts as the primary power supply to keep the GO device operating and transmitting data to MyGeotab™. If the vehicle is driving, the IOX-BATTERY allows the GO device to transmit data to the Cloud for up to four hours. If the vehicle is parked, or ignition is off with no accelerometer activity, then the device switches to heartbeat mode and transmits location data every half hour for up to four days.


  1. Primary asset battery backup solution.
  2. Easy installation with mini USB connection to GO device.
  3. Support for daisy-chaining to additional IOXs.
  4. Pass-through power for up to four additional IOXs when connected to vehicle power.
  5. Cuts power to any downstream IOX when vehicle power is disconnected.
  6. Discreet design with multiple mounting options.

IOX Hardware Technical Specifications


300 g


Overall length: 635 mm

Widest point: 112 mm W × 28 mm H


Polycarbonate (PC) thermoplastic two-piece housing


Two 5-pin mini USB connectors on 2’ cables

Outputs Available

One 5-pin mini USB male connector to the GO device

One 5-pin mini USB female connector to pass current to downstream IOXs

Inputs Available

One 5-pin mini USB connector to provide current from the GO device

Nominal Input Voltage

12 V / 24 V

Current Rating

2 A max charge current

Operating Temp. Ratings

Storage Temp. Rating

-30 ℃ to 60 ℃ Charging

-30 ℃ to 70 ℃ Discharging

-40 ℃ to 80 ℃ Storage


Two 5-pin mini USB connectors on 2’ cables


Male Mini-USB connector connects to the GO device or another IOX harness

Compatible Devices

GO9 and GO9 RUGGED (Click the links for GO7 and GO8 compatibility)

Battery Capacity

2200 mAh

Battery Technical Specifications


70 mm x 38 mm x 20 mm


Lithium polymer



Nominal Voltage

7.4 V

Charge Voltage

5.6 - 8.2 V

Float Voltage

8.4 V

End of Discharge Voltage

6 V

Maximum Discharge Current

2 A

Frequently Asked Questions (FAQ)

What happens when I connect the IOX-BATTERY to the GO device?

When the IOX is plugged into the GO device and vehicle ignition is on, the blue LED light illuminates, indicating the device is correctly connected and charging.

How do I know when the IOX-BATTERY is fully charged?

The charging LED turns off once the battery is fully charged.

How do I know the IOX-BATTERY is working if the GO device is unplugged?

The IOX charging LED remains off when being used to charge the GO device. The GO device LEDs turn on if the device enters tow mode when the vehicle is moving, or periodically during a heartbeat.

How long does it take to fully charge the IOX-BATTERY?

The internal charger is set to charge at 150mA. This means it takes approximately 12 hours to fully charge an IOX-BATTERY.

How does the IOX-BATTERY perform in different ambient temperatures?

The IOX-BATTERY will power the GO from +60C down to -30C. The IOX charging temperature range is from -30C to 60C.

Can the IOX-BATTERY be daisy-chained with other IOXs?

Yes. The IOX-BATTERY can be daisy-chained with other IOXs, but must be first in the chain to allow maximum runtime on the GO device.

What happens to other IOXs in the daisy-chain when a GO device is unplugged?

When a GO device is unplugged from the OBD port, the IOX-BATTERY assumes the load and starts powering the device. However, to ensure there are enough resources to power telematics services such as sending live data to the cloud, the IOX-BATTERY cuts power to all downstream IOXs in the chain.

What is the runtime for a GO device connected to the IOX-BATTERY?

For the GO9, the runtime is 4 hours of driving time, or 4 days in heartbeat mode..

Do different types of IOXs in the daisy-chain affect runtime?

No. The types of IOXs in the daisy-chain do not affect device runtime when powered by the IOX-BATTERY. Because the IOX-BATTERY is first in the chain, it promptly cuts power to all subsequent IOXs, so it can fully power the GO device during an unplug event. This will maximize runtime, while maintaining a water tight connection between the GO9 RUGGED and the IP67-rated IOX-BATTERY, when both units are exposed to water (e.g. municipal street sweepers).

How fast is power transferred to the IOX-BATTERY when the GO device is unplugged?

The transfer of power from the vehicle to the IOX-BATTERY is instant. There is a small, microsecond delay, but the GO device does not lose power when it is unplugged from the vehicle.

What exactly happens to the GO when it is unplugged?

The GO device knows when it has been unplugged, and whether the car is still moving after disconnection. The device uses its towing logic to enable GPS, and begin logging. If the device does not detect movement, it will begin to heartbeat every half hour for the first 96 hours, then continue to heartbeat every 23 hours.

How frequent is the GO device heartbeat?

The GO device will begin to heartbeat every half hour for the first 96 hours, unless there are active accelerometer values that awake the IOX-BATTERY. If the IOX-BATTERY awakes, it begins logging accelerometer and GPS values. After the first 96 hours it will heartbeat once every 23 hours until it runs out of power.

Does the IOX-BATTERY charge regardless of the ignition status?

No. The IOX-BATTERY only charges when the vehicle ignition is on.

What voltage range does the IOX-BATTERY support?

The IOX-BATTERY supports both 12 V and 24 V vehicles.

Are there any GO device logs in MyGeotab that record charging level?

Yes, IOX battery state of charge.

Does the GO device still generate a “device unplugged” alert?

If the device is unplugged while the ignition is off, the modem turns on and generates a device unplugged alert. If the device is unplugged while both the ignition and modem are on, then the modem generates a device unplugged alert and then turns off.

What happens if another IOX is installed before the IOX-BATTERY in a daisy-chain?

If another IOX is installed between the GO device and the IOX-BATTERY when the device is unplugged, the IOX-BATTERY will power both the GO device and the other IOX. In this scenario, core telematics unit runtime will be reduced due to additional battery drain.

Does the IOX-BATTERY work with the GO7?

The IOX-BATTERY is not compatible with GO7 and GO8 devices. If the IOX-BATTERY is used with the GO7 and GO8 devices, some logs may be missing.

How many IOXs can the GO9 support including the IOX-BATTERY?

The GO9 supports up to five IOXs in a daisy-chain, including the IOX-BATTERY.

How is the IOX-BATTERY protected when not connected to the GO device for long periods of time?

There are two ways to protect the battery inside the IOX-BATTERY: sleep mode and ship mode. The IOX-BATTERY enters sleep mode two minutes after it has been disconnected from the GO device, and ship mode 48 hours after it has been disconnected from the GO device. Both progressively prevent deep discharge. In ship mode, the depletion values are:

  1. 1% after 1 day
  2. 2% after 2 days
  3. 2.5% after 1 week
  4. 5% after 4 weeks

Viewing IOX Charging State in MyGeotab

You can check the state of charge on your IOX-BATTERY using the Engine Measurement feature in MyGeotab. IOX battery state of charge means the percentage of charge left on your IOX-BATTERY, similar to how your mobile phone reports battery percentage value. You can also check Telematics device powered by IOX-BATTERY to confirm the telematics device is being powered by the IOX-BATTERY. The measurements feature indicates when a GO device is disconnected from the vehicle.


From the MyGeotab main menu, navigate to Engine & Maintenance > Engine and Device > Measurements.


Click Options, search the vehicle your device is connected to, choose a time period, and then click Apply Changes.


The IOX battery state of charge and Telematics device powered by IOX battery are displayed separately. A value of 1 means the battery is providing power to the GO device. When the GO is plugged back into the vehicle, a value of 0 is displayed at the time it was plugged back in.

IOX Installation Instructions

WARNING! Always read and follow all safety information, including Important Safety Information and Limitations of Use, before harness and/or IOX installation. Disconnect the GO device from the vehicle before installation and connect it post-installation (see Failure to follow these instructions and warnings can result in loss of vehicle control and serious injury or vehicle damage.

Termination Shunt

The IOX comes with a termination shunt installed in the expansion port. If you plan to install more than one IOX in a daisy-chain, you must remove the shunt from each device in the line, except for the last IOX, where the shunt must be kept in place and secured with a cable tie.

NOTE: Failure to install the shunt in the last IOX may affect IOX communication.

IOX-BATTERY Installation Instructions (GO device)




When using a GO unit plug, remove the rubber dust cover on the side of the GO device and plug in the IOX-BATTERY. Use the provided cable tie to secure the connection.

If you need to add any additional IOX accessories, remove the Termination Shunt.

Use the provided cable tie to secure the connection.

IOX-BATTERY Installation Instructions (GO RUGGED device)


When installing the IOX-BATTERY to a GO RUGGED, a HRN-RX06S4 harness must be used to complete the connection. Use the provided cable tie to secure the connection.


If you need to add any additional IOX accessories, remove the Termination Shunt. Use the provided cable tie to secure the connection.


Mount the IOX-BATTERY using the provided screws or cable ties in a location away from outside elements. The IOX-BATTERY charges when the engine is running. The blue LED light illuminates when charging.

NOTE: Although the IOX-BATTERY casing is IP67 rated, the IOX connections are not rated for outside elements.

Important Safety Information and Limitations of Use

For the latest version of Limitations of Use, please visit:

WARNING! Do not attempt to install, configure or remove any product from any vehicle while the vehicle is in motion or otherwise in operation. All installation, configuration or removal must be done only in stationary vehicles which are securely parked. Attempting to service units while being operated could result in malfunctions or accidents, leading to death or serious personal injury.

WARNING! All in-vehicle devices and related cabling must be securely fastened and kept clear of all vehicle controls, including gas, brake and clutch pedals. You must inspect devices and cabling on a regular basis to ensure all devices and cabling continue to be securely attached. Loose cabling or devices may impede the use of vehicle controls, resulting in unanticipated acceleration, braking or other loss of vehicle control, which could lead to death or serious personal injury. Improperly fastened in-vehicle devices may detach and impact operators upon sudden acceleration or deceleration, which may cause injury.

WARNING! If at any point after an in-vehicle device is installed a warning light illuminates on the vehicle dash or the vehicle stalls or has a marked drop in performance, shut off the engine, remove the device, and contact your reseller. Continuing to operate a vehicle with these symptoms can cause loss of vehicle control, and serious injury.

WARNING! Your in-vehicle devices must be kept clear of debris, water and other environmental contaminants. Failure to do so may result in units malfunctioning or short-circuiting that can lead to a fire hazard or vehicle damage or serious injury.

WARNING! Do not attempt to remove the devices from the vehicle in which they are originally installed for installation in another vehicle. Not all vehicles share compatibility, and doing so may result in unexpected interactions with your vehicle, including sudden loss of power or shutdown of the vehicle’s engine while in operation or cause your vehicle to operate poorly or erratically and cause death or serious injury and/or vehicle damage.

NOTICE: This product does not contain any user-serviceable parts. Configuration, servicing, and repairs must only be made by an authorized reseller or installer. Unauthorized servicing of these products will void your product warranty.

NOTICE: The EU Declaration of Conformity is available at

Regulatory Statements


CAN ICES-003 (B) / NMB-003 (B)


This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

  1. Reorient or relocate the receiving antenna.
  2. Increase the separation between the equipment and receiver.
  3. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  4. Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by Geotab could void the user’s authority to operate the equipment.


La operación de este equipo está sujeta a las siguientes dos condiciones: (1) es posible que este equipo o dispositivo no cause interferencia perjudicial y (2) este equipo o dispositivo debe aceptar cualquier interferencia, incluyendo la que pueda causar su operación no deseada.


Wir besitzen keine Versand- und Lagerfläche in Deutschland und sind nicht von der Rücknahmepflicht nach § 17 ElektroG betroffen.