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  • GoPro External Battery

    Hi art15an.You are quite right with your thoughts about the bottleneck becoming the capacity of the SD card. Depending on the subject being photographed in the time lapse mode (and the quality settings) I was consistently getting three to four days of shots with the interval set to one minute. For the work that I have done I needed to keep the image quality high and therefore I have not reduced the quality to see how long I can get the battery to last for. My particular interest was time lapse, and I assume that this requires less power than required to constantly write a video file to the SD card. Obviously this setup can be modified to use any capacity 12v battery, however in hindsight (and if I had to buy the battery) I might have chosen a smaller capacity one as the SD card will...see more »Hi art15an.You are quite right with your thoughts about the bottleneck becoming the capacity of the SD card. Depending on the subject being photographed in the time lapse mode (and the quality settings) I was consistently getting three to four days of shots with the interval set to one minute. For the work that I have done I needed to keep the image quality high and therefore I have not reduced the quality to see how long I can get the battery to last for. My particular interest was time lapse, and I assume that this requires less power than required to constantly write a video file to the SD card. Obviously this setup can be modified to use any capacity 12v battery, however in hindsight (and if I had to buy the battery) I might have chosen a smaller capacity one as the SD card will likely be the bottleneck (assuming that I don't reduce the image quality).In my initial research I did look at custom camera firmware and external intervalometers to reduce the image frequency and increase the time the SD card would last for. If you really have the technical know how and were in range of a wireless network, you could have the images transferred over a wifi connection (or is this just the reals of fantasy!). For really long term I did think about the addition of a small solar panel, however as I have not re-written the firmware or bought an intervalometer, this has not been a required addition!Thanks

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