A year of limited use (a little over 3000 miles) after setting up the SJCAM M20 action camera as a dashcam in the Forester has killed the junk-as-delivered Batmax NP-BX1 battery:
Although the total capacity remains about the same as before, the voltage depression causes the camera (which expects to run from a high-voltage lithium cell) to crash immediately after the car’s USB power jack shuts off, preventing it from properly closing the video file.
Another Batmax battery from the same batch works fine, so we’ll see if it can survive for another year.
The Smell of Molten Projects in the Morning 