Hello, everyone
The way I see it, there is nothing wrong with the indicator. With network mode set to "GSM/WCDMA" and multiple apps performing updates and refreshing in the background, there is a continuous switching between no activity, 3g and H+, which obviously drains battery around 6% per hour.
In settings: under "Wireless and network", there is "Data usage". There you can set mobile data limit and get a list of apps using it. Clicking on any of them, gives detailed information and at the bottom of the page the option to "Restrict background data", which disables "background data on mobile data network only. Wi-Fi will be used if available.".
I checked "Restrict background data" for all listed apps except messaging and my weather widget, since they apparently don't transfer any data in the background, but I still receive multimedia messages. Now the signal status shows "H" with no activity (upload, download) while wi-fi is off.
I tested my theory last night: in 8 hours, battery power dropped only 4%.
As far as I'm concerned, I do not need Internet, e-mail, facebook or any other app performing updates, while I am not using them.
This solution definitely is not for everyone, but I suspect it could help the masses
The only thing to watch for is to turn wi-fi off before going to sleep.
I hope this helps at all