In this video, we answer 13 of the most frequently asked questions about the BLUETTI B300K.
Whether you’re curious about upgrades, charging options, or compatibility with other power stations, we’ve got you covered. 
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I recently purchased the AC500 with 2 B300K expansion batteries. When first connecting everything, the batteries showed in the app and on the unit display as pack 1 and 2. However, after updating all of the firmware, they now show up in both the app and unit display as pack 2 and 3. Pack 1 shows as empty.
Is this expected behavior, or something I should be concerned about? I noticed a screenshot in this video that shows the same scenario in the app where 2 expansion batteries show up as pack 2 and 3 with pack 1 showing empty.
While this does not appear to cause any charging/discharging issues, I am concerned there may be an issue if I later expand and try to connect 6 expansion batteries.
@gan777
The serial numbers of the battery pack are arranged randomly; as long as the total quantity matches, it won’t affect normal use, no worries.
Simple to understand and straight to the point. Great video!