Kindle is not charging have tried everything have not used for 4 years

need to test charger --port and battery

Donno if this will help but these are the issues and how I somehow managed to clear most of them on my Kindle HD fire (7 inch); I got mine about 2011 I think.
Problems I've come across with HD Fire; Glitches, blinking screen, very slow or stopping to work, Very slow loading, Freezing program and final; 1/2 screen (the worst of it)
* Slow or frozen is usually cleared by turning off (or flipping cover closed if you have an on/off type of case.
* Glitchy loading; Try to turn off or remove apps you don't use or rarely use. Many run in the back ground and take up memory, speed, bandwidth, and battery power. Check on youtube for help with this as it can be clumbersome.
* White out, is a symptom of over heating (like in a hot car or at the beach in direct sun light.) this is scary as nothing works. Dead giveaway is that the Kindle if very hot! Remove from heat source and take it out of case. Leave it on a FIRE PROOF table top like stone or metal. Use a cookie tray if you have one. Caution! if the kindle was heating up by itself while charging then remove from charger! Check if it's the right charger or charge with a lower power unit (300-500 milliamps) but do this AFTER it cooled down. Don't use a fast charger! Heat and Battery charging are a bad combination and will damage your kindle. I'm still using mine afer ....7 years? yeah the 1/2 screen clears up after the charge gets below 80%. Donno why this happens. It might be the battery may be swelling during certain power levels. It reall does not like being charged to 100%.
* For the errors listed above the final solution (besides returning it to Amazon) is to do a complete power shut down or hard shut down which involves holding the on/off button down for at least 30 seconds. This is like a laptop hard reset. Turn it back on after a minute and it will slowly power back up. Oh, forgot; Don't let the Kindle ever get to the point that it crashes completely. Once you get the final 5 min low battery warning. PLUG it back in to charge! You run the risk of corrupting apps and data. Some may need re-install.
* Okay the very last resort; Check that you back up all data to your cloud drive. Many kindle apps will do this already (like Checkbook) But if you have documents that were created on the kindle and not sourced out then have it uploaded to your Kindle (Amazon) cloud. Check the kindle help line for more info. OKAY: Now go to your kindle:
1. Swipe from top - down for menu.
2. Swipe menu to left to get to (+) More...
3. On settings choose Device.
4. Choose Reset to Factory Defaults.
5. If you WROTE down your passwords and account #'s and have them handy then proceed with "yes" to continue.
If not the STOP! and cancel, get out of menu and go find all your account info:
- Wireless access password (yours)
- Amazon Account Name, User ID, Password.
- You will need to reload all your apps that you currently use. Don't load stuff that you rarely use as you can always load them later as they reside in you amazon cloud account. You should not need to repurchase them. (though I've had problems with apps that require a "Key" code as they don't always work and some require 'proof' that you already purchased them.
6. Reset and let it go through it's power up and new customer initial set up. You will be surprised at what you forgot, even after a month. Try 7 years and you won't remember a thing!
* I'm reluctant to perform a factory reset as all my game scores, past history, and other stuff gets lost. Once I waited 2 years before giving up. (+$70,000.00 on Vegas style Solitare)
*************************************************************
*** NEVER EVER!!!!
***send the kindle through a Airport X-Ray machine! ***
*** this is what caused my 1/2 screen! It comes and
*** goes every few months. It's sporatic.
*** Seems to always want the wireless to be on as
*** once turned on it will clear the screen after the
*** battery drops between 65 to 35% charge.
*** I've been using my kindle like this for about 5 years
*** though I've switched to a 10 inch Android Phablet
*** now and found almost everything works once log
*** into Amazon. BUT you may find it cranky on
*** Amazon books as it won't reccognize my
*** Phablet. I still purchase books with my Kindle
*** which will automatically be available on
*** other devices as long as it's logged into
*** the same account.
*************************************************************
Aloha, ukeboy57
PS; if you have two kindles or more and it's for the (adult) kids then think about keeping them on one account as anything you buy (books) will also be available to them and visa versa. Or if saparate then you can loan them the book or purchase it as a gift.

Try using a different charger and cable to make sure the battery is being properly charged. Your penultimate option is to back up all your files and perform a factory reset. Go to Settings > Device > Reset to Factory Defaults > Reset. If nothing has worked, then it's time to contact Amazon.13 Jun 2016

Kindle Fire: 13 Common Problems and How to Fix Them ' Digital Trends

www.digitaltrends.com/mobile/kindle-fire-hd-problems/ kindle fire will not charge Google Search

I assume you're referring to the USB cord. Certainly you can buy a new cord at just about any department, electronics, or office-supply store. I have multiple cords (and chargers) all over the house so I can use my Kindle in any room and keep it charged. Naturally, there's another cord by the computer.

sounds like you did everything right
could call amazon see if they can help
or do a factory reset to eliminate software problems you will lose all your data
then there is hardware problems dead battery that won't recharge bad cable connection inside kindle

Reset Kindle Fire When it Won Turn on or Charge

Dead battery. If you haven't charged it for several years it dies.
Unreparable although if you call kindle customer support they may give you a discounted price on a new or refurbished current model Kindle. They'll want your old one for parts.

The Kindle Fire HD, if completely discharged, may take several hours to begin to accept a charge again. Simply leave it plugged in long enough and the on-board system will sort it out.

First step is to confirm you have a good charging cable. If you have another cable give it a try or plug into a charging block before assuming the problem is the device.

It is possible that your Kindle Fire's battery has died. If you noticed the battery life diminishing before it wouldn't turn on at all this may be the case. Here is a site that has replacement batteries for the Kindle Fire:
3555A2L Battery for Amazon Kindle Fire D01400