Hue go1 disconnects

An installed and working hue go1 randomly gets disconnected and not recognised anymore. First I thought that the battery was empty, but this also occurs when battery is just charged for 2 hours.
The hue go is within less than 5 meter from the bridge.

Any suggestions or people that face same problem?

Returned hue go1. Does not make sense to have a lamp that has a battery live of only 3 hours, no way to see what the battery level is and the lamp gets disconnected if not plugged for 24 hours.