Review on XTAR VC2S 18650 Battery Charger With Upgraded LCD Display, USB Output, and Battery Authenticity Check - Supports 10440 to 26650 Batteries by Chris Sandridge

I only bought this charger to charge the 18650 batteries that I use in my headlamp. I want these batteries to last long and be reliable when I go into the caves, so I bought a charger that can handle these batteries well and let me know when they're getting low. It does this very well and the display is quite usable, but unfortunately, as other reviews have said, the voltmeter function is wrong. It always reads the maximum cut-off voltage, not the current battery voltage. My biggest issue is that you can't manually set the rate at which the battery charges. When you plug one in, it starts pumping 2 amps right there at top speed. With two inputs, it drops to 1 amp each. But for maximum battery performance, 0.5 amps is best, but you can't force it to charge at that rate.