Need a source for discontinued batteries (drone)....

I have a DJI Phantom 2 & DJI doesn't make the batteries anymore. I found many sources between Amazon & Ebay, but am curious is anyone here knows of a reliable "knock off" battery manufacturer.

This is one I found for instance, but never heard of the website. Thanks for any help.

https://batteries.fact​oryoutletstore.com …0&search_term=p​hantom%202

I have used what I suspect were Canon fakes and they work.
I never timed the run time.
I don't know if import deliveries will take place because of coronavirus.

I haven't used "fakes", but had success with other brands such as Wasabi or Watson.. These were purchased because of $$, the battery I need is due to it being discontinued by DJI otherwise I would just purchase original battery.

I would definitely recommend NOT using any aftermarket batteries in your drone - there's always going to be a high chance that your drone falls out of the sky. I've had many many aftermarket batteries go bad and I'm never going to do that again!

Even used DJI batteries off of eBay would be so much better, if you can find them.