Hi, I have a Pi5 being powered by a battery that does 2.4 amps (i know yall are gonna tell me 5V 5A! but this is what we got!).
The pis run totally fine. They sometimes have that error when I am vnc-ing into them that says the power source is insuffcient, but they run fine. they basically just take a photo every minute that saves to the SD card, and then copy that photo to a USB drive. So nothing to intensive for extended periods of time. The photos are about 20Mb each, so not crazy huge.
However, we have noticed sometimes the photos that get copied over will be like half copied or corrupted (the preview usually shows them as a partial photo and then gray). The original photo on the SD card is fine, so we know it's not a problem with the camera, but rather something weird is happening when they copy to the USB.
1) Is this a problem of maybe the Pi limiting current to the USB? (it doesn't seem like just a USB thumb drive would take much power, but maybe?)
if so, could i prevent it by doing something like they suggest in this thread?
viewtopic.php?t=357129
"The usb_max_current_enable option prevents the limit on USB, but the Pi still assumes a 3A PSU"
or
2) is there some more obvious problem that could be corrupting these images that I am not seeing? We have tried different USB drives, haven't really identified a pattern.
The pis run totally fine. They sometimes have that error when I am vnc-ing into them that says the power source is insuffcient, but they run fine. they basically just take a photo every minute that saves to the SD card, and then copy that photo to a USB drive. So nothing to intensive for extended periods of time. The photos are about 20Mb each, so not crazy huge.
However, we have noticed sometimes the photos that get copied over will be like half copied or corrupted (the preview usually shows them as a partial photo and then gray). The original photo on the SD card is fine, so we know it's not a problem with the camera, but rather something weird is happening when they copy to the USB.
1) Is this a problem of maybe the Pi limiting current to the USB? (it doesn't seem like just a USB thumb drive would take much power, but maybe?)
if so, could i prevent it by doing something like they suggest in this thread?
viewtopic.php?t=357129
"The usb_max_current_enable option prevents the limit on USB, but the Pi still assumes a 3A PSU"
or
2) is there some more obvious problem that could be corrupting these images that I am not seeing? We have tried different USB drives, haven't really identified a pattern.
Statistics: Posted by hikinghack — Sat May 24, 2025 2:06 am