All the chargers you're looking at now are good!
And the Samsung INR 25's are great
batteries.
Just wanted to respond to something you said about the Sony's being cheaper - "DON'T DO IT" - if you're seeing VTC4 or VTC5's right now for a low price, they are probably FAKE. There ARE no VTC5's available right now - Sony is in the middle of changing the factory, right when they got real popular with vapers. So people started putting a green wrapper on other
batteries and selling them as Sony's.
Batteries, you want to buy from a well-known vendor, like RTD Vapor, or Illumn (flashlight place, not sure of the spelling)...
Charger from Amazon is OK, but don't get batteries from EBay!!!