do these all go together?

[TheGcm]

$52.93 E-LVT 2.0 7-30W Variable Wattage APV Mod - blue / power bank / LED flashlight at FastTech - Worldwide Free Shipping

2 x UltraFire 18650 3 7V 4000mAh Rechargeable Li ion Battery Single Charger USA | eBay

5mL PBC Tanks

 

[Topwater Elvis]

The batteries are not suitable for vaping use.
Use only IMR / hybrid chemistry high drain batteries from reputable vendors / dealers.

 

[Neolithium]

There's not too many eBay vendors I'd buy batteries from to begin with. Also, NEVER use Trustfire...hell, anything with "fire" in the name, for vaping. Go with Panasonic, AW IMRs, LG HE2's or efest batteries, for your own good