The storage capacity of a lithium battery in a warehouse is about half of the full charge. This is for a better battery life in the transit. When your product arrives, you need to fully charge the product to get the battery into normal status.

About the Indicator LED:

If the indicator LED (C letter on earbud) is red, that means the earbud is charging.

When it got a full charge, the indicator will change into blue, and automatic off after a while.

The indicator behind the charging case, it's for tells the charging case battery volume:

each indicator LED means 25% power, so 4 LEDs means the charging case is 25% x 4 = 100% fully charged.

When the charging case in charge, you will see the indicator blink.