User's Manual

25 | P a g e
8 Replacing Battery
The coin cell battery (CR2032) used in the FOBO Ultra sensors could last up to
fifteen months based on normal operating condition. Operating in extreme cold or
hot temperatures may reduce battery operating life for both the tire sensors and the
In-Car unit.
You will receive an alert on the smartphone and In-Car unit/Repeater when the
sensor or In-Car unit/Repeater battery levels are low. You will be alerted every
time you start to drive your vehicle until the battery is replaced. It is advisable to
change the battery once you receive this battery alert to ensure proper performance
of FOBO Ultra. Do not wait until the battery is fully drained as it will cause FOBO
Ultra to stop working properly.
To replace the battery of sensor unit, unscrew the top cover. Be careful not to
damage the rubber gasket as it may affect water resistance of the sensor unit. Ensure
the battery (CR2032) is inserted with the “+” sign facing up, away from the PCB.
To replace battery for the In-Car unit, slide out the battery cover. Ensure the battery
(AA) is inserted in the correct orientation. It is advisable to use good quality AA
batteries (recommended Lithium or Alkaline) for longer lasting performance of In-
Car unit.
WARNING: RE-USING OLD BATTERIES OR MIXING OLD AND NEW
BATTERIES IN THE IN-CAR UNIT MAY DAMAGE THE ELECTRONICS.
9 Trouble Shooting Guide
 Could not sign up a new FOBO account (did not receive activation e-
mail)
o Check the e-mail address entry is typed correctly
o Check the Spam mailbox, in case the e-mail was filtered by the e-
mail server
o Check the smartphone is connected to internet and able to receive
e-mail
 Could not sign up a new FOBO account (received activation e-mail)
o Make sure to click on the “Activation” link of the latest e-mail, in
case there are multiple authentication e-mails
o You should be directed to web page that clearly displayed “FOBO
account is activated”.