Pretty sure my hunch is correct, but figured I should double-check before putting this stuff on my wishlist. I just wanted to confirm that this battery:

Sony Li-Ion 18650 3.7V 15A 3120mAh

Is compatible with this holder:
18650 Single Cell Holder

and this charger:
TrustFire TR-001 All-in-One Charger

My last build didn't use removable batteries so I just wanted to confirm these would all match up. Also, I'm assuming that the fact the battery is high-drain makes it ideal for NeoPixels, hence, its recent addition to the store?