I also had a Fenix BC30 V2 with replaceable batteries. The light blinds other road users, the beam does not reach far enough, although it is very wide but also shuts off when a bike hits bumps on descends (dangerous). It is also heavy and bulky, although has decent runtimes. If you go with that light make sure you have an additional light as a back up, because of the shutting down of the light over bumps and leaving you completely in the dark. It also has a remote that is useless in cold temperatures, because they use a tiny battery in it. When the temp is 40 deg. F. or below the remote refuses to operate.
P.S. I lost the light while riding on the trail during day time, once the trail got rough it just came off the mounting bracket because of the vibrations and I did not see it till later when I needed to use the light