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Viruses Engineered to Construct Batteries - Researchers at MIT have modified the M13 virus to create very small batteries. With the viruses building wires 6 nanometers in diameter, the research team hopes to build batteries that range from the size of a grain of rice up to the size of existing hearing-aid batteries. EurekAlert ; Apr. 6, 2006 See Slashdot discussion
The circuit was tested using a voltage data logger and the results of this are included as Fig 8 and Fig 9 which show the original and new charge profiles respectively. Note particularly the new charge profile switching to trickle charge when a peak is established.