G,day, .. anybody using the sena units out there for intercom purposes , I have the sf4 and sf2 .. both have given me nothing but trouble and continually warn me of low battery , we don’t use them for any other purpose , just intercom . So I’m wondering what I should get out of a full charge , I’m sure they told me around 11 hrs .. I’m lucky if I get 2 hrs from my sf4  .. and low battery warning at random times .. sometimes 20 mins of switching on , sometimes a bit more .. wife’s sf2 gives low battery warning  at slightly longer time but seems to stay on for quite a while , mine is pared to my fone but I don’t use it .. hers is not pared .!

I have the HD/Sena units (20s Evo) that pick up the HD infotainment system on the Road Glide. When travelling with mates that have Sena/compatable headsets we pair up for comms.

My Sena sf4 once fully charged is good for about 10 x hours, that includes navigation and constant bluetooth music, no intercom.................once low battery warning comes on it is still good for a few hours

Thanks guys , yeh I was thinking anywhere between 8 and 11 hours depending on usage  but I’m not getting anywhere near that , sena finally got in touch yesterday and I’m to take them in for inspection “ again “ .. : (