If you set "LiteLevel" to "Low", the various LEDs won't significantly impact battery life. They'll only draw about 6mA total (LCD backlight on, keypad backlight on, tri-color LED "white").
Still... It would be *quite nice* if they could somehow, via a `firmware' & `software' `update', give the alert LEDs similar control as they have for the backlighting with external or battery power without having to resort to `kludges'. And, *if* they could `put the icing on the cake', also give the alert LEDs intensity level control like the display's. Battery `savings', though there **might** be a **slight** improvement, are not as much of an `issue' as is `nightvision' `savings'.
(Try driving back home late at night, with SWMBO and children aboard, and having been on the road for about an hour without basically no other lights beyond the dash lights and suddenly a TG that you have an LED alert programmed comes up because you've just gotten in range for it. While it could reasonably be expected that SWMBO, who is in the righthand seat and dozing, would be awakened by both the audio and flashing. One wouldn't expect the children, who are in the back seats and a tad bit more than just dozing plus having their headphones attached to now silent MP3 players on, to be awakened by the LED's flashing! Oh, yeah... The way the scanner sits is such that basically the main `beam' from the LEDs isn't aimed towards the backseat area but is, instead aimed upwards and surrounded by the lip of the `tray' it is in. Also, the headliner is not a shiny reflective surfaced material. To have them both controllable both as on/off on battery power and intensity would be great. [Oh, yeah... It would be nice for both the display and them to be dimmable even further down than they currently are just for `night-vision's' sake! My EDC flashlight dims further, less than 1 lumen, than the display does and I don't have any problems even with my old `antique' fading vision eyes.])