ℹ
info Jbl
Status Flashing white slowly
Charging indicator — the speaker battery is currently charging.
? What Causes This
AC power is connected and the battery is charging.
ⓘ What This Means
Allow the speaker to charge completely. The speaker is fully charged when the entire light stripe turns solid white.
Source: page 7 of the official manual
From the manual
This error code appears in:
Jbl Speakers Each Other