I received delivery of a new MaxiTPMS TS508WF yesterday here in the U.S. and have had it charging from the included wall plug for about 18 hours. When it is disconnected from wall power the battery icon in the upper right corner of the screen continues to show the white "no charge"; it doesn't show the green "full charge" as shown when connected to wall power.
One additional note that may or may not be related: when plugged into wall power to (theoretically) charge the battery, I am unable to turn of the TS508WF so the screen is always lit up. Holding the power button down does not turn off the device as it does when it is NOT connected to wall power.
Other than a bad battery in a new device, what else might be going on?
I have been able to update the 508WF to the latest firmware/software wirelessly. Attempting to update again returns an "device is up to date" message.
From the devices "About" screen:
System software version: V107
Hardware version: V100
Sensor version: V6.29
Vehicle version:V184
Manufacture date: 07/22/2021
From my account on the Autel web site:
TS508 V1.84 2022-03-04