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Product Description

The Efest Mega USB Charger is a compact and intelligent charger designed to support various types of batteries used in electronic devices. With its small size, it offers convenience and versatility for charging multiple battery types.

This charger features automatic detection of the battery chemistry, allowing it to adjust the charging current between 0.5A and 1A to ensure safe and efficient charging. It is compatible with a wide range of batteries, including 18650, 18350, 26650, 20700, and 21700, as well as NiMH/NiCd batteries such as AAA, AAAA, AA, C, SC, and F4.

Equipped with multiple safety protections, the Efest Mega USB Charger can simultaneously charge two different batteries. It also has the capability to reactivate a completely discharged battery with a 0V charge. The charger utilizes a micro USB connection and can be powered by any 5V or 2A power source, providing flexibility and convenience.

Constructed with durable ABS materials, the Mega USB Charger is lightweight and portable, making it easy to carry with you wherever you go. The LED screen on the charger displays the battery chemistry and charging level, allowing you to monitor the charging process.

Please note that this charger does not include any batteries. The package includes the Efest Mega USB Charger, a micro USB cable, and a user manual.

Warning:  Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of property damage, personal injury, or even death. They are not supposed to be used outside of a fully protected battery pack and you use them at your own risk. Never exceed the battery’s true continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.


Product Specifications

  • AC Input Power: AC 100~240V 50/60Hz
  • DC Input Power: DC 5V 2A
  • DC Output Power: DC 5V 2A
  • 2*1A CC current: 1000mA±10%
  • 2*0.5A CC current: 500mA±10%
  • Auto cutoff voltage: Liion 4.20V±0.05V NiMH/NiCd 1.5±0.1V
  • CV cutoff current: <10% max
  • Standby Current: <100mA
  • Sleep Current: <0.5mA
  • Activation Current: 50mA~100mA
  • Activation Current (rechargeable Liion battery voltage <2.90V) 10mA~100mA
  • Auto recharge voltage: Liion 4.10V±0.10V NiMH/NiCd 1.2±0.10V
  • Operation Temperature: 0°C~40°C
  • Storage Temperature: 40°C~+70°C
  • Charger Size: 118mm x 65mm x 34mm
  • Compatible with:
    • Liion 3.6V/3.7V batteries: 10440 / 14500 / 16340 / 17340 / 18350 / 18490 / 18500 / 18650 / 26500 / 26650 / 20700 / 21700
    • 1.2V NiMH / NiCd batteries: AAAA / AAA / AA / A / SC / C / F6 

Package Contents

  • 1 x Efest Mega USB Charger
  • 1x USD Cable
  • 1x Warranty card
  • 1x Instruction Manual
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