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Speedlite 430EXII and 430EXIII turn off automatically


I am using an EOS 70D with 430 EXII and 430 EXIII Speedlites with an Altura dual wireless flash trigger set so neither flash is mounted to the camera body in this case.  They shut off automatically after about 90 seconds of not being used.  I'd like them to stay on longer because I can't seem to get them to turn back on from the camera.  I have to walk over to the flash and push the pilot button.  I set them to manual, because the flash triggers do not transmit TTL settings, and custom function 10:1, which should mean they stay on for 10 minutes before shutting off, but this isn't the case for some reason.  Any help would be greatly appreciated.