Q2:

Specifications:

• Fast charging
• Auto-select between 2.0A, 1.0A
• Auto-stops when batteries are fully charged
• Auto-recharge when voltage goes lower than 4.05V
• Protections against: Over-Discharge, Over-Voltage, Short Circuit, and Reverse Polarity Protection
• Independent battery slot monitors

Product Includes:

• Lush Q2 Charger
• AC Adapter
• Operation Manual
• Warranty Card

Q4:

Features and Specs:

• Compatible with: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 22650, 26500, 26650
• Made with Quality Piano Strings
• Simple No Button Design
  
• Battery Life LED Indicator Light
• Quad Slot Battery Charger
• Automatic 2.0A Charging for One Battery
• Automatic 1.0A Charging for Two Batteries
• Automatic 0.5A Charging for Three or Four Batteries
• AC Input Power: AC 100~240V 50/60Hz
• 2.0A CC Current: 2000mA (+/-10%)
• 1.0A CC Current: 1000mA (+/-10%)
• 0.5A CC Current: 500mA (+/-10%)
• Auto Cut-Off Voltage: 4.20 (+/-0.05V)
• CV Cut-Off Current: <10% Max
• Standby Current: <10mA
• Activation Current: 10mA~50mA
• Auto Recharge Voltage: 4.10 (+/-0.10V)
• Operation Temperature: 0C ~ 40C
• Storage Temperature: -40C ~ 70C

Package Contents:

• 1 x Efest LUSH Q4 Charger
  1 x AC Adapter