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Form Energy, a start-up backed by Bill Gates, recently announced it would partner with a utility in Minnesota on a pilot project to build an aqueous air battery that could deliver continuous power for 150 hours.

MacBook Air battery life Apple is claiming that this machine can get 18 hours of video playback and “15 hours of wireless web,” both of which are very large claims.

The MacBook Air battery has made a leap from 11 hours to 15 hours, measured though surfing the Web over WiFi.

Dr. Soon-Shiong said the cost of his zinc air battery had dropped steadily since development began.

Sherif Abdelrazek, a senior engineer at Duke Energy, said that because the zinc air battery does not pose fire hazards as lithium-ion batteries can, it does not need external cooling systems to prevent overheating.