Voltaic Systems V25 6,400mAh USB Always On Battery Backup Power Bank

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V25 USB 6400mAh Battery – Always on feature

The new V25 USB Battery pack features 6,400mAh of power, pass through charging, and Always On mode. The V25 is ideal for providing backup power to smartphones, iPads, tablets, and other USB electronics.


  • Designed for use with Voltaic solar chargers, solar panels, and accessories
  • High temperature Li-ion cells tested and optimized for solar applications
  • 6,400mAh / 23 watt hours provides 1.5 charges to smart phones, .65 charges to 7" tablets.
  • Optimized For Solar Charging
  • Pass Through Charging

V25 USB Battery

  • Capacity: 400mAh, 23 Watt Hours
  • Output: 5V/2A, 3A max (2 outputs)
  • MicroUSB Input: 5-6V/2A
  • USB-C (Input Only): 5V/2A
  • Battery Type: Li-Ion
  • Protection: Short Circuit, Over Charge, Over Discharge, Over Current, Over Temperature

Testing and Certifications

  • CE
  • FCC

Size and Weight

  • 6.2 x 3.7 x 2 in. (15.8 x 9.4 x 5.1 cm)
  • 8 ounces (226.80 g)

Always On Mode
Voltaic's upgraded "Always On" feature makes it easy and efficient to use with various sensor or time lapse applications


The Voltaic 25 battery and 1 USB to MicroUSB Charging Cable

Brand Voltaic

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