Rear Rechargeable bike Light?

Had a Knog Blinder but the lack of a low battery emergency mode was a big problem for me. Arrived home a couple of times in the dark to find the light had run out of power and switched itself off. USB rechargeable rear lights without a low battery mode are dangerous in my opinion.

Now have a Bontrager Flare, which I highly recommend. Love the fact it only has 4 well thought out modes. My only small criticism is you can only position the light at 2 angles (angle is changed by rotating the light 180 degrees). Having suffered from retina burn floaters during the day from a fellow cyclists rear light, I have mine upside down to point it at the road, which works for me.

Knog Blinder for me, great light, really bright. Does need charging about once, maybe twice a week with me commuting 120 miles a week but great light, highly recommend.

Bontrager Flare R ... rechargeable so never goes flat or dull as aa/aaa rear lights do
also when the juice does run out it turns it self onto steady light mode thereby giving you the nod to recharge it .
wife followed me home one afternoon and could see me across the valley . a distance of 2 Km .... she still missed me
the flashing mode will upset any other bike rider behind, making you very unpopular

the only downside is the charging point is on the bottom which I have covered with black and nasty tape to weatherproof it

whatever choice you make try cycling with it always on !!

http://www.wiggle.co.uk/cateye-rapid-xx-rc-rear/

Cateye Rapid XX. On sale above too. I got mines for a song from a bike mag's post review eBay sale, but I'd have paid full price. It sits on my seatstay and is crazy-bright - easily enough for daytime. Commuting use sees me charge it once a week. It's clever too - if it's dying it'll switch to a blink mode for an hour or so.

Charges via micro-usb at my desk if needed, and the rubber port cover seems really solid. I've had it for 6 months or so now and it's been perfect.

Cateye Rapid Mini?

Review is favourable, I'm debating whether to get one.

http://road.cc/content/review/142190-cateye-rapid-mini-rear-light

I like the Moon Meteor rear light. It's very small, extremely bright over a large area and rechargeable with a standard micro-usb socket. It probably doesn't have as long a run-time as some other lights, but it depends on what kind of mode you use. I think it lasts about one and a half hours on the brightest setting.

Also, I can recommend the Fly6, but that's more expensive as it has a camera. I haven't directly compared them, but I think the Moon rear light is probably more visible than the Fly6.

Smart Lunar 0.5w - absolutely brilliant with a low setting for club rides. Had mine 5 years and still going strong.
Takes rechargeable AAA batteries and lasts for ages between charges.
http://www.amazon.co.uk/Smart-Superflash-0-5-Flashing-Light/dp/B001JGFI74
Other shops are available.

I'd agree with the previous poster about the Lezyne strip drive. I got the non-pro set and have been quite happy with them. Worth noting that the non-standard usb charger will fit a usb port either way around, but will only charge one way up.

I picked up a Lezyne strip drive pro on the strength of the recent reviews, and while I haven't had a chance to test it out in proper darkness, its daylight running mode is awesomely bright, and the life is pretty good as well.

I'm not entirely keen on the rubber strap attachments for something I have to take off my bike to charge, but they seem reasonably strong

i just use rechargeable AA and AAA batteries.

Fly6. Bit pricey but comes with a video cam that captures all the evidence if somebody rear ends you. Really bright light and long lasting battery.

I have two of these, they are excellent
http://www.ebay.co.uk/itm/Bike-Cycling-Bicycle-3-LED-Flashing-Light-Lamp...

I have tried several rear lights, some quote expensive. The hotshot is excellent for it performance. I did a time trial recently and the start marshall said he could see my light from over a mile away in bright daylight. It was commented that it was the brightest rear light on the day out of 100 riders. I know that it hurts your eyes to look at it directly at close distance.

I've gone through 3 rear light in the last 6 months, at the moment I have this which is rechargeable and reliable...
http://www.wiggle.co.uk/lifeline-usb-led-double-beam-30-lumen-rear-light/

I haven't had much luck with rear rechargeable lights. They all seem the break quickly on me.

Lezyne Zecto - lovely big light but blew after 2 months of winter. Moon light USB also went quickly. Lezyne Femto - still working after 3 years of solid year round commuting. I buy a sheet of batteries from ebay and they last a winter. Cateye Omni - bombproof and think this has been working for well over 5 years of commuting. Weirdly the really bright rear lights appear to attract bad drivers. The gentle light of the Cateye appears to be just right.

I usually have a combination because invariably one will stop working when you least want it to

Aldi "premium" rear light £8.99. Different light patterns/intensities for flashing and steady. Can be mounted discreetly vertically or horizontally. Bought a front and rear - front mounts via substantial rubber band under stem, and the rear vertically between seat stays, with the rubber band around seat tube.

Exposure Trace R

Flare r.

Leyzene zecto

Cygolite hotshot. Probably the brightest rear light available. Multiple flash patterns. Very compact and decent mount for either seat post or stays.

See amazon or ebay for retailers