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.
1) n. a person who testifies under oath in a trial (or a deposition which may be used in a trial if the witness is not available) with first-hand or expert evidence useful in a lawsuit.A party to the lawsuit (plaintiff or defendant) may be a witness. 2) a person who sees an event.3) a person who observes the signing of a document like a will or a contract and signs as a witness on the document attesting that the document was signed in the presence of the witness.n another sense by witness is understood one who is called upon to be present at a transaction, as a wedding, or the making of a will. When a person signs his name to an instrument, as a deed, a bond, and the like, to signify that the same was executed in his presence, he is called an attesting witness.