A lot less expensive, for sure.
I am quite familiar with AW Batteries, been using them for years. Satisfied there...
Ordered first set (4) of Sony VTC6 batteries. No markings on the battery that say 'Sony', just a white sticker on a green flat top 18650. Should I be worried ?
You need to check out Liion, they are quick shipping and not a bad price at all, I just bought 4 LG HE4's for $20 and they threw in 2 battery cases, plus I know they are real. I don't trust Ebay and Amazon for batteries, the seller may be legit or may not, then again whomever they got batteries from may or may not be legit.
There's been trouble for reputable dealers keeping clones out and they'll take a loss if they happen to get some or ship back/make claim through their insurance. I just don't see many on Ebay or Amazon being able or wanting to do that.
3rd party sellers have it made on these things because the only way to prove real or not is to have equipment (which is more than enough, you aren't worried about battery prices) or destroying the battery. They have enough room to argue real, that you just can't win and if you do how long will it take? In the end spend the few extra dollars a battery and be safe.
If it makes you feel better I can remember a time when 1- 18650 ran like $16 plus shipping, all the prices are great to me, lol.