I like these batteries. Not so heavy as to make the unit uncomfortable to have on your lid but holds a decent charge.
I do a lot of commuting and also traveling on roads so few weeks ago I bought INNOVV THIRDEYE. I thought this has to be some sort of gimmick but I will risk it and try it out. Well today I went out for a first short ride and I must say I am really pleasantly surprised. The damn thing is perfect. Build quality is really good and no false warnings or anything like that. At any moment I knew exactly what is going on behind me. It really is a safety gadget and it works as advertised