Julian Ilett | Xtar VX4 Battery Charger Capacity Tester @JulianIlett | Uploaded July 2024 | Updated October 2024, 4 days ago.
The VX4 can charge multiple battery types including lithium ion 1.5V, nickel metal hydride 1.2V as well as lithium ion 3.7V and lithium iron phosphate 3.2V

It's the first charger that can grade (test the capacity of) lithium ion 1.5 volt cells.

VX4 charger in aliexpress store: vi.aliexpress.com/item/1005007121040816.html?gatewayAdapt=glo2vnm
XTAR official website link: xtar.cc/product/xtar-visible-mixer-vx4-charger.html