Any electric car that uses batteries needs a charging system to recharge the batteries. The charging system has two goals: To pump electricity into the batteries as quickly as the batteries will allow. To monitor the batteries and avoid damaging them during the charging process.
A filibuster is a parliamentary procedure where debate over a proposed piece of legislation is extended, allowing one or more members to delay or entirely prevent a vote on the proposal.
Senators have used filibusters to push for changes in legislation, or to prevent a bill from passing with less than 60 votes. It is often a way for the minority party to yield power and block legislation, even though the majority party chooses what bills will get a vote.