Rebels in Syria are designing rechargeable batteries for shoulder-fired antiaircraft missiles, a development that could make them more lethal against Syrian warplanes but that also carries potential risks to civilian aircraft, according to a rebel behind the new design and to Western analysts who have assessed his work.
The batteries are matched to the SA-7b missile system, or Strela-2, an early variant of heat-seeking missile that originated in a Soviet design bureau in the late 1960s and has been reproduced in several countries, including China, North Korea and Pakistan.