Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: I haven't charged this yet, and lost my owners manual. DoI slide the battery into the light housing to charge it?
Document: In addition, the battery is amazing. I go days without charging the unit. In fact, I took a break from riding (about a month) and used the light after it had been sitting for about 30 days without a charge and it was as if it had just been charged the night prior! Buy this item, and forget the rest. You'll never need another light!
Not sure if I like the blinking selection, but again, the 350 lumens provides more than enough to be able to see where you're going. I haven't had to recharge the unit yet, but it does come with a USB connection for charging. Approximately 90 minutes of use on the charge from the factory, and we're still going strong. Great value and superb performance from a small and compact light! !
fast shipping, the light is pretty bright very excited about it. used it with the charge it had out the box very bright. when i charged it and took it out it was even brighter!
I did a previous review on this product (earlier this year) and gave this a good rating. The lighting is good and it is compact. After a couple months however the light started going off when I went on any rough surface. After a few weeks the light went and would not turn on. It needs to be a lot more sturdy as it seems as if the battery pack disconnected somehow from the housing and wasn't charging. Light kept going on and off when riding.
The ports are covered with flaps that keep water out. I was forced to bike through some sprinklers and it went through with no issues.- USB charging - Hooked up to my macbook pro the light charged in just an hour or two. It's very convenient to not have to worry about batteries.- Replaceable battery - The battery can be replaced when needed.
Such a cool light. Battery came charged, easy to put together, easy to install. I've had three lights this year (school teacher who began commuting this school year, nine miles each way, leaving at 5:20am) and as the sunlight has gotten progressively less throughout the year, I have upgraded lights. I started with a Knog light, which does nothing beyond offering slight blinking to drivers.
This light is great WHEN it works. For some reason when I hit bumpy roads the light changes intensities sometimes almost turning off entirely. Also when the intensity goes way down it starts to flash like its running out of battery (even though it was just charged), then I hit a bump the intensity comes back and it stops flashing. I originally liked this light a lot, now I dread using it because I don't know what I'll get.
Used this light for about a year. Three modes: bright, not as bright, and blinky. I only used the bright mode, and it worked great when fully charged. Swappable battery feature is worthless, unless you plan on riding for several hours in the dark. I thought that having a rechargeable battery would be great since i would not have to replace the batteries often. However, this light barely lasted a year, using it 2-3 times a week from late fall to mid-spring.
There are times on tour when I can't get to an outlet overnight. It's not possible to stop at a convenience store and buy some AAA batteries for an extra day of riding. I want t be able to ride 2 or 3 days without recharging, When I got the light I charged it overnight, then started riding, keeping track of my hours to measure the actual battery life in flash mode. I don't know how long the batteries last, because I stopped the test after over 31 hours of operation.
Next time I may secure it with a piece of electrical tape since you can recharge the lamp without removing the battery. When it is charged the lamp illuminates really well, it is actually amazing how much light it throws. I'm just dissapointed to be replacing the battery which had been recharged about 6 times.Update Oct 2012Fair is fair - I am updating this review and upping my rating to 5 stars based on a very excellent customer service experience. I contacted Cygolite and told them about the missing battery issue.
Answer: no