When your Voting Power is 100% and you give a 100% upvote, it takes 2.4 hours to recharge it to 100%.
Picture pixabay.com
If you want to make the most of your Voting Power to earn Curation rewards or Author rewards, you should follow your Voting Power. https://steemd.com/@yourusername
If you do not use your Voting Power when it's 100%, you lose Curation rewards.
Example: You're on Steemit and reading and commenting and not giving upvote on posts or comments will you lose Curation rewards and you will not be able to recharge your Voting Power when it's 100%
I use most of my Voting Power from 90-99% to give many a good upvote on posts and to be able to recover quickly.
I often see that there are many who do not give an upvote on a good comment, but just choose to comment on it. Well, you give upvote to the comment you liked, you also earn Curation rewards.
