Review on Tecmate Optimate USB O-105: Dual Output Weatherproof USB Charger with Bike Plug (BMW, Triumph, Ducati Compatible) by John Jones

I am using this on my BMW K1600GT to power a Quad Lock cellphone on my bike. Research has found that many DIN mounted USB bike chargers do not turn off when the bike is not in use. They are also not weatherproof. This Tecmate combines both. It works great. I go on long trips and play music from my phone through the bluetooth speakers in my helmet and I don't have to worry about my phone battery dying. It's durable, weatherproof, I still have an extra USB port when I need it, and it shuts off to keep my bike's battery from draining. Nice choice!