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 purchased this in Jan of this year.  It no longer holds a charge.  Can you tell me how the two year warranty works?
Document: Good product at a reasonable price if they last. Too soon to tell. The batteries I purchased from another supplier failed to hold a charge after 6 months. So far these batteries seem to be holding up.
I had purchased an OEM Streamlight battery last year and the battery DIED after I had it for 14 months. I contacted Streamlight and they told me I was out of warranty and out of luck. I was very upset with their reply and vowed never to buy another Streamlight product. My first original battery lasted over a decade! Why did my new one JUNK? !While I was looking around I stumbled across people buying the aftermarket batteries for the Stingers so I decided to try it out since they were cheap enough.
not a factory battery. holds charge just fine. ordered about 11 of them for everyone in the shop. battery from china but works great so far.
I've had two of these batteries for about a year, and they seem to work just as well as the original Streamlight batteries at a fraction of the cost. Order 'em!
This battery failed to keep a charge after only 1 month. The last one I purchased only lasted 6 months.
I've only had it for a few days. I hope it holds its charge. I'll know more as time goes on.
The battery works fine. It arrived earlier than expected. Thanks for the fast delivery. The batteries I had no longer worked and it was very frustrating without this light. It has brightened up my days.
battery will not charge , I charged it for 24 hours and it showed no hint of a charge it was same as I received it dead I ordered two of these batteries and both were same
Bought two batteries for my Streamlight flashlight and glad I did! Both have work really well. They hold a charge without any noticeable drain and have exceeded my expectations.
No complaints so far. It takes and holds a charge. I have not had it die on me, yet. However, I do not use my Stinger XT flashlight all of the time. Good, cheap alternative to the name brand.
Answer: yes