
XTAR positions the VX2 Pro as a do-it-all two-slot charger, with fast charging and conditioning in one unit. The conditioning side matters if you rely on rechargeable cells for night hunts, since cycling a cell shows whether it still holds what it should. The videos on this page give the full walkthrough.
A smart charger stops charging when a cell is full, which makes it far safer than a basic trickle charger. Even so, the safest habit with lithium cells is to charge on a hard, nonflammable surface and pull the batteries once they're done, instead of leaving them sitting in the charger for days.