XTAR Panzer XP4 - 4 Slot NI-MH/LI-ION Battery Charger
Professional Li-ion/Ni-MH battery charger with three optional charging currents: 0.25A/0.5A/1.0A.  Charge four 10440/14500/14650/16340/17500/17670/18350/18500/18650/18700 Li-ion batteries and AAA/AA/A Ni-MH batteries or two 22650/25500/26650 (3.6V/3.7V)Li-ion batteries and SC/C Ni-MH batteries simultaneously but respectively. 0V battery activation.  Reverse polarity protection and short circuit protection.  Battery-type recognition.  For different type of batteries, XP4 adopts different charging methods: for lithium batteries, XP4 adopts three-stage charging (TC, CC, CV); Ni-MH batteries, XP4 adopts pulse charging and 0△V,-△V judge method  plus stopping charging when overtime and over voltage function.   USB Output (Synchronous-rectified method).  The built-in USB output with low voltage, overload, short circuit, overheat and reverse-polarity protection plus stopping supplying when low voltage.  For Ni-MH batteries, XP4 has the discharge function to repair the battery capacity.  Adopts PWM technology to control the high efficiency DC-DC circuit, lower the voltage and reduce energy loss.  AC/DC Adapters are included.