Both of mine were made in China, mine are the smaller ones that I use to power a camera that won't draw enough current to keep other batteries from shutting down.

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Voltaic Systems V25 6,700mAh USB Always On Battery Backup Power Bank for iPhone, iPad, Samsung Galaxy, Android, and HTC Devices

Voltaic Systems V25 6,700mAh USB Always On Battery Backup Power Bank for iPhone, iPad, Samsung Galaxy, Android, and HTC Devices

Q: Can you connect 2 units together for double the charge ?

Hello - if you mean double the capacity, we would suggest using the V50 - https://www.amazon.com/Voltaic-Systems-Always-External-Battery/dp/B00XZ7YU4M/ If you mean double the current (4A), it is possible with something like this "splitter" cable - https://www.amazon.com/HIGHROCK-Enhancer-Female-Charge-Extension/dp/B00NIGO4NM/r

Q: How do you know when it's fully charged ?

If connected to a power source like USB or a 5 or 6 Volt solar panel, the lights will blink when charging. When fully charged, all 4 LEDs will turn solid.

Q: Can I plug in into a wall outlet & keep drawing power from it always? I do not have any solar need. Any other product recommendation for my purposes?

Yes, the V25 has "pass through charging." It can accept a full charge and discharge at the full rate at the same time. If your power shuts off, there is no lag in power to your device. Customers do use it as a UPS.

Product ID: 582732962

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Details

Connector Type
USB Type C
Brand
Voltaic
Battery Capacity
6700 Milliamp
Color
Silver
Special Feature
Always On

⚡5V/2A output

🌞Solar optimized cells

🔋6,400mAh capacity

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Description

🔌 Power your adventures, never miss a moment!

DUAL OUTPUT - Charge two devices simultaneously with 3A max output.
SOLAR READY - Harness the sun's energy with high-quality Li-ion cells.
POWER UP ANYWHERE - Stay charged with 1.5 smartphone charges on the go!
ALWAYS ON CONVENIENCE - Perfect for sensors and time-lapse applications.
VERSATILE COMPATIBILITY - Works seamlessly with iPhone, iPad, Samsung, and more.

The V25 6,400mAh USB Always On Battery Backup Power Bank is designed for the modern professional, providing reliable power for smartphones and tablets. With solar-optimized Li-ion cells, dual output capabilities, and an 'Always On' feature, this power bank ensures you stay connected and charged, no matter where your day takes you.

Specifications

Unit Count	1 Count
Battery Cell Type	Lithium Ion
Color	Gray
Recommended Uses For Product	Cellular Phone,Iphone,Tablets
Compatible Devices	IPhone 13 Por Max/13 Mini/13/12/11/XR/11 max/XS Max/X; iPhone 8 Plus/8/7 Plus/7/6s Plus/6 Plus/6/SE; Samsung Galaxy/Pixel LG/Nexus/; iPad Tablet; Smartwatch, Headphone,Speaker，Huawei Samsung Galaxy S10, Samsung Galaxy S9, Samsung Galaxy S8, Samsung Galaxy Note 10; Motorola P50, Motorola Z4, Motorola G7 Plus, Motorola G7, Motorola One; LG G8, LG G7, LG X4, LG Q60, LG K40, LG Q7; Google Pixel, Google Pixel XL, Google Pixel 2, Google Pixel 2 XL, Google Pixel 3, Google Pixel 3 XL, Google Pixel 4, Google Pixel 4 XLIPhone 13 Por Max/13 Mini/13/12/11/XR/11 max/XS
Voltage	5 Volts
Amperage	2 Amps
Connector Type Used on Cable	USB Type C
Battery Capacity	6400 Milliamp Hours
Additional Features	Travel, Over Voltage Protection, Fast Charging

Have a Question? See What Others Asked

where is this made?

Can you connect 2 units together for double the charge ?

How do you know when it's fully charged ?

Can I plug in into a wall outlet & keep drawing power from it always? I do not have any solar need. Any other product recommendation for my purposes?

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