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.
us â /ËtesÂ·tÉËmoÊÂ·ni/. âº a spoken or written statement that something is true, esp. one given in a court of law, or the act of giving such a statement: [ U ] The value of their testimony is questionable. (Definition of âtestimonyâ from the Cambridge Academic Content Dictionary Â© Cambridge University Press)