Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: will this charge 18500 ?
Document: Would not charge if the battery has the slightest dimple on it. I didn't even bother to return it but I would not recommend.
Watch out for knockoffs of these. This is the second one I bought, giving the first to my friend which I had no complaints about. Mine, however is clearly not the same. You have to play with it to get it to charge properly.
I have two Efest 2000 18650 batteries and if you don't put two batteries in this at one time, it won't catch to charge. I usually have to put something heavy on top to keep the battery in place to charge.
I have had this for a while now and it works great charging lithium batteries. It can be modded to also charge the CR123 lithium batteries by soldering a couple contacts. Use it daily to charge 14500 batteries for my flashlights and it has been perfect so far.
I bought this charger to charge Trustfire TR18650 3.7V flashlight batteries. I bought this item from Crazy Cart and looks exactly like another one I ordered from a more expensive store. It charges the batteries - what else can you ask for.
Got this charger for some Trustfire 14500 batteries I purchased, works great.A plus with this charger for me is that I can charge single batteries at a time. Since I'm using two 14500 each in different flashlights, one for work and one for home
I'm surprised with how good this charger is, for the price. It's sturdier than others I've bought and the two 18650 slots charge independently with two indicator lights that work independently. Really not a bad charger at all. Mine doesn't get very warm when it's at work, either, which has been a problem with cheap chargers. I'm ordering a second one for my travel electronics bag.
I hoped the the first one was defective, but got a 2nd replmt and no different- leds never turn green, batteries overheat very quickly and it's obviously overcharging and not  using any electronics to safely charge as a proper charger would. Comes with no warranty, no instructions, not even in plastic, just in a paper box. I would not buy this product, you can get same quality on ebay for $2.
As stated above, I bought this as a backup to a trustfire charger which has been very reliable. This ultrafire is proving just as reliable. They are similar in many ways. The LED's start out red and turn green when the charge is complete. This one charges at a slightly lower rate(450 Ma. vs. 500 Ma.). The lower the charge rate, the better it is for the long term life of your batteries. This charger and the batteries get warm, not hot.
The light turns green and it stops charging after reaching 4.08 volts, which is only about 85%. A full charge should be 4.2 volts. I guess it's fine. I'd rather have it undercharge than overcharge (especially with lithium-ions BOOM!) But people in the flashlight forums don't seem to recommend this charger. I ordered an Xtar WP2II charger, which seems to be more highly reviewed among enthusiasts.
Answer: no