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.
It takes 60 votes in the Senate to block a filibuster, or an unlimited debate. Senate rules allow any member or group of senators to speak as long as necessary on an issue. The only way to end the debate is to evoke  cloture , or win a vote of 60 members.