Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: my 2yr old kindle fire will not recharge. thinking of buying a replacement battery but reviews suggest that this is a waste of money.  any suggestions
Document: I have a Kindle Fire 1 and this worked great! I was able to replace the battery myself, it was easy. I would purchase again and recommend buying this product as it was much cheaper than replacing the Kindle, it is like new now.
I've had this battery fewer than 5 months and it will no longer take a charge. I understood when I was buying it that Amazon does not warranty replacement batteries but, since it was included in Prime, I attributed some credibility to it. Other batteries were available for half the price. This time, I'll try one of them.
My kindle suddenly died at Christmas after 2 years. It is a first generation of the Fire so does not have a lot of advantages as the newer ones have but as I mostly use it as my reader is fine. Looked on Amazon and although they do not support replacing the battery in the Kindle, they do sell them so figured a battery was cheaper then buying a new Kindle (I have about 700 books in mine at the moment).
The tool did not open the case-when I asked for help I was told that Amazon does not recommend ever changing the battery in the Kindle,  They did solve the problem by giving us a reduced price on a replacement Kindle. Why do they sell replacement batteries?
Like others in the comments section, I too found it difficult to use the tool provided. Based on just the written instructions, I would have broken the plastic tool and cursed the people who made the battery replacement. So...........thanks for YouTube and the cool video on how to replace your Kindle battery.
I choose to give a 3 star rating because the product was exactly what I wanted and it arrived on time and packaged securely. but unfortunately the product did not work. I don't know if it was the battery or the kindle fire. I was disappointed the kindle didn't work that ii did not return the item.
The battery works great! The only drawback is the tool (included) used to open the Kindle Fire is cheap and the end snapped right off with the first attempt to open the tablet. Had to go with Plan C (a small jeweler's screw driver) after a computer repair shop told my wife they would charge $149 just to open the tablet.
Just finished installing this battery and it seems to be working fine. But the instruction sheet for opening the case and removing the battery is hopeless. I consider myself a skilled repair person, but after about five frustrating minutes trying to attempt the procedure (poorly) illustrated, I managed to snap off the tip of the plastic repair tool. Then I went on line and a search turned up an instructional video on YouTube. &#34;Replacing your Kindle Fire battery&#34;.
The battery would not charge in my kindle. I had to send it back. I would not do it again.
I installed this battery in my Kindle and it did not work at all. Now I am stuck with this and cant use my Kindle.
Answer: That is a hard question to answer,  if the cause is the battery worn out and needing to be replaced, then go for it.  There are other reasons why a battery will not recharge, two of many being a faulty charger or bad connection at the Kindle.  For these faults, you can check by using another standard Android device charger and try to see if it will work, other than that I would say buy a new Kindle.