in consideration of those cases where a very high power drain exists
so 5m might not be available when at 1% battery..)
[battery]
# for LED-blinking when battery gets low
threshold 5 # in %age; at x%, we go into blink-mode as warning
-check_interval 300 # in seconds to check threshold; should be a high 300s
+check_interval 90 # in seconds to check threshold; should be a high 300s
blink_interval 2 # frequency of blink
blink_duration 50000 # how long a blink lasts, in uSecs
shutdown_threshold 1 # battery %age we force a shutdown (to save the SD!)