Either tariffs raise revenue from foreign imports or make imports expensive enough to protect domestic producers, not both. There is nothing magical about tariffs. They are taxes and they are paid by ...

Lithium-iron-phosphate (LiFePO4 or LFP) is the safest of the mainstream li-ion battery types. The nominal voltage of a LFP cell is 3,2V (lead-acid: 2V/cell). A 12,8V LFP battery therefore consists of ...