- Optimized to Charge from Solar
- Pass Through Charging
- Dual USB Ports
- Standard Always On Feature for IoT and Time-Lapse Projects
- 7.7 x 7.8 x 2.6 cm
- 160 grams
- Capacity: 6,400mAh, 23 Watt Hours
- Output: 5V/2A , 3A max (2 outputs)
- MicroUSB Input: 5-6V/2A
- Minimum Charge Current: 5mA (indicators turn on at 60mA)
- Maximum Power Point (MPP): 5.2V
- USB-C (Input Only): 5V/2A
- Battery Type: Li-Ion
- Protection: Short circuit over charge, over discharge, over temperature (45℃ Input Cutoff, 60℃ Output Cutoff), under temperature (0℃ Input Cutoff, -15℃ Output Cutoff)
- Safe for air travel (Carry-on Luggage Only)
- V25 USB Battery Pack
- USB - USBC Charging Cable
- UN 38.3
- IEC 62133
- CE
- FCC
Battery features updated Always On technology as its standard state and will not shut off even if your device is drawing low or no power. There is no low current cutoff.
To stop charging your device, double tap the Power Level Button or disconnect from the battery. To resume charging, tap the Power Level Button once.
Battery recovers into Always On mode after discharge, over-temperature and under-temperature events. Power consumption in Always On mode is approximately 7mA (26mW).
- Optimized to Charge from Solar
- Pass Through Charging
- Dual USB Ports
- Standard Always On Feature for IoT and Time-Lapse Projects
- 7.7 x 7.8 x 2.6 cm
- 160 grams
- Capacity: 6,400mAh, 23 Watt Hours
- Output: 5V/2A , 3A max (2 outputs)
- MicroUSB Input: 5-6V/2A
- Minimum Charge Current: 5mA (indicators turn on at 60mA)
- Maximum Power Point (MPP): 5.2V
- USB-C (Input Only): 5V/2A
- Battery Type: Li-Ion
- Protection: Short circuit over charge, over discharge, over temperature (45℃ Input Cutoff, 60℃ Output Cutoff), under temperature (0℃ Input Cutoff, -15℃ Output Cutoff)
- Safe for air travel (Carry-on Luggage Only)
- V25 USB Battery Pack
- USB - USBC Charging Cable
- UN 38.3
- IEC 62133
- CE
- FCC
Battery features updated Always On technology as its standard state and will not shut off even if your device is drawing low or no power. There is no low current cutoff.
To stop charging your device, double tap the Power Level Button or disconnect from the battery. To resume charging, tap the Power Level Button once.
Battery recovers into Always On mode after discharge, over-temperature and under-temperature events. Power consumption in Always On mode is approximately 7mA (26mW).
Device Charge Times
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Device | V25 Battery | Smartphones | DSLR Cameras | 7” Tablets | 12” Tablets |
Number of Charges from Battery | - | 1.8 | 1.6 | 1.0 | 0.5 |
Hours to Charge from Solar Panel* | 6.0 | 4.0 | 4.6 | 6.6 | 15.3 |
*Solar charge times based on use with the 5 Watt Solar Panel.
Battery can be recharged from a 6V solar panel or any USB or USB-C port.
Compatbility
Smartphones:
Charges all USB Devices including all Apple, Android, Google, and Blackberry smartphones.
Tablets:
Charges all tablets that are powered by USB including Apple iPads and Samsung Tablets. Will not charge tablets that charge at 12 or 16 Volts such as a Microsoft Surface.
Digital Cameras:
Charges both DSLRs and cameras that charge from USB. For DSLRs, an optional camera charger cradle that matches your camera battery is required. Read our tutorial on solar camera charging.
Microcontrollers:
Compatible with USB powered microcontrollers including Arduino, Raspberry Pi and more.
8 Reviews
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Awesome
Posted by Dayna StreetingWorks great always on!
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Great battery, difficult for permanent install
Posted by Mark McMillanThe battery is great for my IoT project with a solar panel for recharging. It will run my project for a week without sunlight.
I wish the case we better for mounting in a project box - it has no mounting holes, and all rounded edges. Very hard to mount properly. Plus the USB and charger outlets are not on the same side, so it requires quite a large footprint inside a project box. I am tempted to take it apart and discard the casing. -
V25
Posted by MattWorks great for running a Uhoo AQM so I can move it around the house. The Uhoo goes into low power mode constantly, and it hates being unplugged which makes it want to recalibrate all its sensors for TWO DAYS.
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Solid battery pack, a bit large
Posted by Tom TumbuschI ordered two of these for travel, and they work great. Love that they're optimized for solar and are USB-C compatible, but I miss the slim, lightweight design of the V15.
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Performance
Posted by KirbyI use field equipment on my job and I do not go anywhere without V25's & V50's in my equipment bag. Highly recommend them.
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V25
Posted by August TreuThis is a nice little unit.