XTAR VC4S 4 Bay LCD USB Battery Charger The XTAR VC4S features a bright colorful LCD display, internal resistance detecting, storage mode, grade mode (capacity testing) and much more! 18650 20700 21700 Product Highlights: 4 Bay Battery Charger Four Charging Speeds - 3A x 1, 2A x 2, 1A x 4, 0.5A x 4 Compatible with 18650, 20700, 21700, 26650 and more Intelligent Visible Experience Upgraded colorful VA LCD screen tells you real-time charging status! Micro-USB powered, charge anywhere Internal Resistance Testing Grade Mode, Full Capacity testing Storage Mode Battery Type Auto-identification 0V Activation Function revives over-discharged battery Soft Start& TC-CC-CV Three-Stage Charging Packaging Contents: Xtar VC4S battery charger Xtar Micro USB Cable User Manual Scratch and Check validation serial number Specifications: USB Powered Input – QC3.0 (5V / 3A | 9V / 2A) Output Current – 3A x 1 / 2A x 2 / 1A x 4 / 0.5A x 4 Cutoff Voltage – 4.2V +/- 0.05V / 1.45+/-0.1V Dimensions - 149mm x 115mm x 35mm Weight - 212g Compatible with: 3.6V/3.7V Lithium ion Batteries Most Cylindrical Lithium-ion Batteries Ranging In Size From 10440 To 26650 including 18650, 18700, 20700, 21700, 22650, 25550 and 26650