Hi guys, I'm new to MacBook and I've read some articles saying that the lightning bolt icon represents the battery being charged and the plugged-in icon means the battery is not charging and using power from the adapter (In my case Power Source is Power Adapter for both icons). But when I check it on my MacBook it's almost always showing the lightning bolt icon even when the battery is 100% and it says Fully charged and sometimes the plugged-in icon showing. I don't know if there is a problem but it seems that the Max Capacity of my device drops quite quickly (I often use the power from the adapter, rarely use the battery), my friend and I bought the device at the same time (about 5 months ago) but for now, my Max Capacity is 96% / Cycle Count: 24 and my friend is 98% with 47 cycle count. Should I worry about it?