* Triscopic arrives late to the party
Yes LCDHost needs to be restarted after installing the gadget. Glad it's working now.
The monitoring is limited to what the mouse reports, and it reports levels not a true percentage. If you run the logitech gadget it shows green (full), yellow (less full) or red (nearly empty) only, nothing finer - in fact for you it'll only show full or nearly empty as although the G700 (which is what I have too) has four levels Logitech's own gadget merges levels 4 & 3 and calls them both "full" and merges 2 & 1 and calls them "nearly empty". That annoyed me as my mouse just suddenly went from being "full" to "nearly empty" without any warning.
Anyway, I've tried to expose more info, but I'm still limited to the mouse's levels - I just make all available (i.e. for you, all four) instead of mixing them up into a smaller number of levels as per the original gadget.
Shame that the G700 has only four levels, but I guess it corresponds to the LED battery states (3 green, 2 green, 1 green, 1 red)