Phones are designed to have massive talk times as is.
Most of that power is required for audio output.
But if you’re just parsing for adwords? Capture and send snippets back to a server and process them there, attach them to the google/facebook ID.
Also, consider that cell phones used to have stand by charge times in the range of a week or two if left unused. Smartphones die if left unused for half a week.
Phones are designed to have massive talk times as is.
Most of that power is required for audio output.
But if you’re just parsing for adwords? Capture and send snippets back to a server and process them there, attach them to the google/facebook ID.
Also, consider that cell phones used to have stand by charge times in the range of a week or two if left unused. Smartphones die if left unused for half a week.