- the xtar vc4 is a professional li-ion / nimh battery charger with four independently functioning apart charging slots to operate on any 5v usb port. li-ion battery types loaded: 10440/14500/14650/16340/17500/17670/18350/18490/18500/18650/18700/22650/25500/26650/32650 3.6v / 3.7v lithium io
