I use a plastic coated curly steel rope lock that I permanently leave curled through my seat, my battery and my bike frame. I would strongly recommend this setup to everyone. That way everything's always locked to everything else. I also have the added bonus that if I'm leaving my bike somewhere a bit dodgy I can change it quickly so that it goes through my back wheel too. I then use a much stronger lock as my main lock to lock my front wheel and frame to anything handy.
I have a quick release seat and a battery + controller that clamps to the seat post so all it would take for someone to nick my battery and seat would be cutting the two wires that come out of the battery controller and lifting it off. Two seconds tops. So I was forced from the outset to take action.
I have a quick release seat and a battery + controller that clamps to the seat post so all it would take for someone to nick my battery and seat would be cutting the two wires that come out of the battery controller and lifting it off. Two seconds tops. So I was forced from the outset to take action.