You do need a new battery. Batteries can run down after 1 year. If you don't need the mobility and don't want to spend up to $150 or so for a genuine Dell replacement battery, try removing the battery and use the adapter alone. If that works, use the laptop as a desktop replacement. A genuine Dell replacement is required. Beware of scammers selling used or off brand batteries.

That's why I suggested you try using the adapter alone. Unfortunately there were problems with the battery swelling in several models so many replacements were needed. Finding genuine replacement batteries for laptops like yours is almost impossible now. Trusted sources all say Out of Stock. That is also why I warned about scammers.

This issue has been the bane of my existence. Literally two months after the warranty expired on my XPS15 9560,  the orange flashing LED started up and I saw an error that my battery wasn't charging. Did the whole "remove the battery, hold the power button down for 30 seconds, reinstall it, etc." but no change. Ran a BIOS and said the battery needed to be replaced.

I was a bit disappointed the battery lasted barely over a year, but I figured, what the **bleep**, I'll just go on the Dell site an order a replacement. Nope. Not in existence. The have an AC adapter and a portable battery pack, but no internal replacement batteries.

Then I visited Amazon for a third-party replacement, and that's where the real fun began...

Ordered one from a company that said it was a genuine Dell battery and would work with the 9550 and 9560. It was only about $70, so I order it. Install it, won't even start without AC power, orange LED blinking. Contact them, get the same "remove battery, hold down the power button B.S." (THIS DOES NOTHING....), run a BIOS check and under the Battery info it's a red battery and a notice that "this isn't a genuine Dell battery...might explode...etc.". Well, I'd love to get a genuine Dell battery, but THEY DON'T SELL THEM.

I leave a one-star review on Amazon and send it back for a refund. The Chinese company that sold it to me sends me an email that their so sorry about it, must have just been a bad battery, can they send me a free replacement if I remove the 1-star review? Sure, I'm game. They send me the replacement; same exact issue. I check the battery carefully and realize it was a 84Wh battery--the 9560 requires a 97Wh! I contact them back, say it doesn't work, I will remove the 1-star review if they change their listing to stop saying the battery is compatible with the 9560. They do it.

I contact Dell who informs me of the exact model number I need, and I find another Chinese company selling what look like the right Dell battery, with their company logo sticker over it. I order the battery ($170) and install it--it works! I mostly use my battery on AC (I do video editing and graphic design) and probably used it off AC for a total of two hours.

Three weeks in, the LED starts flashing white and orange. Check the battery settings--plugged into AC but not charging; battery needs to be replaced. Try the "remove the battery, hold the power button down, reinstall battery" thing (NEVER WORKS) and then contact leave one-star review and begin return process. Company contacts me immediately--"We don't know what happened; must be a bad battery. Let us send you a new one for free. Keep the old one; don't worry about having to return it.". I wait two weeks for the new one to arrive (in which time the return timeline is up) and it shows up and I install it. Won't start. Plug it in, battery is at 20% power and won't charge. Check BIOS--"This is not a Dell battery; replace with a genuine dell battery; won't charge, danger of explosion, etc.".

I contact Amazon and after explaining the situation, they were sympathetic and wonderful and gave me a full exchange without restocking fees (I think they realize how many scam battery companies are operating through their site and were afraid I was going to rock the boat).

Meanwhile, the third party company is continuing to email me, begging me to remove the one-star review, saying they wish I hadn't returned it to Amazon so they could make it right, blah blah blah.

I think these companies just buy batches of bad batteries, sell them to people, and most people either don't bother to return them (thinking it's their computer), or when they do, they offer replacement batteries or refunds. They all have halfway decent ratings because if they do everything short of threats (I'm waiting for that next) to get people to not leave one-star reviews. I bet there are hundreds of people for each of these hundreds of scam 3rd party battery companies that did just what I did with the first one, and remove my one-star review in exchange for something (in my case, getting them to remove the 9560 from their list of compatible units, though they'll probably just add in back).

Dell REALLY needs to remedy this issue. A Google search for Dell XPS15 9560 battery issues/problems brings up dozens if not hundreds who are having this issue. Meanwhile, we all now have a very overpriced desktop computer...

How can they not product more batteries for the 9550 and 9560 series?  Same with the 9570?

So what about the new 7590 series that is out?  They not going to have new batteries for it anymore?  This makes zero sense.  When you say xps 15, you are either thinking about the 9550, 9560 or 9570 right?

So why do they not have batteries for it?  Does apple or other companies do this?  No longer sell batteries for older computers after x years?

Also are there huge risks when using not geniune batteries from ebay or amazon?  What happens if you use them?  

Like from worst case scenario.  Can your laptop explode?  Can your laptop get damaged and not work?