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You wait until it "recharges" ;))

when does the recharge happen ???

look at steemstats.com could you tell me how much voting power u have left ?? i got 95percent left

maybe this will help you
https://steemd.com/@katrienstoops

what r vesting shares ??

nice ...thnx for this link

Found these, hope they help. Basically it slowly recharges to 100% when you don't upvote. The higher your % the more the upvote is worth. Basically you will have less of an effect on the value of the post if you spam the upvote, you also get paid less if you upvote every post even if a post gets popular.

https://steemit.com/steem/@pfunk/i-feel-like-the-voting-power-recharge-mechanism-is-flawed

https://steemit.com/steemit/@aaseb/please-help-me-understand-the-voting-power-recharge-rate

I don't think it goes down unless you use cash out

look at steemstats.com could you tell me how much voting power u have left ?? i got 95percent left

Good info,i just know about steemstats