Likewise, the MPPT varies the ratio between the voltage and current delivered to the battery, in order to deliver maximum power. If there is excess voltage available from the PV, then it converts that to additional current to the battery. Furthermore, it is like an automatic transmission.
On the Supreme Court of the United States, Associate Justices Potter Stewart and Anthony Kennedy have been described as swing votes between the two factions of the court. In the United Kingdom, the  Essex man ,  Worcester woman  and  Holby City woman  are examples of personifications of swing voters.
As president of the Senate, the vice president gets to cast the tie-breaking vote regardless of which party controls the Senate. But 50-50 ties are much more likely when the Senate's membership is evenly split. There have been nearly 250 tie-breaking votes cast by vice presidents in U.S. history â but none by Biden.