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High end charger for easy and safe charging.
For AA/AAA/9V and USB devices.


Charging time
4h Charging time
USB-out function
Charge your mobile devices by using the USB-Out Port
Bad cell & alkaline detection
Contains criteria for switching off to prevent charging of primary cells, defect cells or cells with reverse polarity
Minus Delta V method
Method which takes advantage of the fact that the cell voltage reduces slightly in a rechargeable battery (- Delta V), as soon as the cell is completely charged
Timer cut-off
A timer switches off after a specified time irrespective of charging status
Wrong polarity protection
Protection against reverse cell insertion
Ready To Use
For immediate usage straight from the pack.


  • Easy and safe charging
  • Ergonomic and unique design
  • Handy format: direct plug-in
  • LED backlit blue LCD display: charging level, 9V and USB indication
  • Charges AA/AAA/9V and USB devices at the same time!
  • Additional USB out port
  • Comprehensive safety features: Minus Delta V cut-off, safety timer, short circuit protection, alkaline detection
  • Charging time: 4 hours*
  • 3 years guarantee
  • Available with 4x AA 2100 mAH 56706


* Depends on cell capacity: Based on 4AA 1600 mAh


VARTA Type 57677
Cell sizes AAA, AA, 9V, Device
System to charge Nickel Metal Hydride (NiMH)
Cell configurations:
AAA 2 or 4 pieces
AA 2 or 4 pieces
9V 1 piece
Charge currents:
AAA 200 mA ±10%
AA 450 mA ± 10%
9V 34 mA ±10%
5V USB 900 mA ±10%
Mode -Δ V / Timer
Control functions:
Wrong polarity protection Mechanical arrangement
Short circuit protection No current, LCD flash
AAA AA 9V 6.5 h

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