On the subject of Brompton rear battery lights, I fitted a B+M "2C Permanent Toplight". It comes with an attachment that clips to the saddle rails. The light snaps in to place. It is USB rechargeable. A very good light but on very rough surfaces the light can fall out of the bracket. I've fixed it with a couple of small rubber bands and it's been great ever since.
The Brilliant Bikes video shows how easy it is to pop the lens off and change the batteries, but that's with the light loose. Bolt it to the bracket on the rear brake bolt, then try to open the clip.
I'm just going from your photo, which looks similar to my rechargeable version, in that the U shaped bit at the bottom of the shot, looks similar, and was not easy to pop off, but did. Then maybe getting to the batteries is easy?
How often do you have to change the batteries? Judging from my experience with the earlier Brompton battery rear light (also from Spanninga) the batteries last several years before they need to be exchanged. Judging from your pic it is possibly an option to open the lid using a tool like i.e. a flat screwdriver. If not it is either two bolts to separate the light from the bracket or one bolt to separate the bracket from the brake bolt holding it. Both ways take less than five minutes. Every couple of years. Not a drama in my eyes.
It's a crap design in another respect: the light bar is at the very bottom where it is likely to be obscured by the mudguard and brake, unless you're fairly close. I saw one being used in daytime (actually the dynamo version) in London last week, and it was indeed obscured from 100 yards behind. I can see why Kell thought it should go the other way up.
That was also part of my rationale - the LED bar seemed to sit too low.
There is some play to get the whole thing to sit higher, but certainly not enough to access the clip, or bring the LED bar up enough to clear the brake.
I use mine purely as a back up to the ones fitted to my saddle and seat post.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.