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.
uk â /ËtestÉªmÉni/ us â plural testimonies. âº a formal statement about something, especially one given in a court of law: to give/present/provide testimony. The court heard two days of testimony from environmental experts, activists, and lawyers. Employees' testimonies could prove crucial for Gonzales, who is struggling to hold on to his job.