The cost of the battery is only ~10-20% higher than the bill of materials â suggesting a potential long-term competitive price for Lithium Ion batteries could approach ~$100 per kWh. Tesla currently pays Panasonic $180/kW for their batteries, although conventional systems still selling for $500-700/kWh.he cost of the battery is only ~10-20% higher than the bill of materials â suggesting a potential long-term competitive price for lithium-ion batteries could approach ~$100 per kWh.
n, pl -nies. 1. a declaration of truth or fact. 2. (Law) law evidence given by a witness, esp orally in court under oath or affirmation. 3. evidence testifying to something: her success was a testimony to her good luck.
The definition of a witness is a person who has seen an event or who testifies about what he has seen. An example of a witness is a person who sees a robbery and goes to court to talk about what he saw. To witness is defined as to observe an event taking place or to give evidence. An example of witness is when you see a robbery. An example of witness is to tell the jury about the night of the robbery.