POW1 - Emergency USB Battery Powered Power Bank Compact Portable
#18
MERCURY

MERCURY POW1 - Emergency USB Battery Powered Power Bank Compact Portable

Rating

Model: 4348695369
$26.99(incl. tax)Amazon price as of 2025-09-29
Buy on Amazon

Product Overview

The MERCURY POW1 is a compact, portable USB power bank that utilizes 4 AA batteries to charge devices on the go. It's designed for emergency use with smartphones, tablets, and other USB-powered devices. The power bank features a battery level indicator and is compatible with both alkaline and rechargeable batteries. It provides a convenient solution for situations where access to a power outlet is limited, offering a basic charging option for various mobile devices. However, the charging capacity is limited by the AA batteries used.

Share

Product Images

MERCURY POW1 - Emergency USB Battery Powered Power Bank Compact Portable の商品画像 1
MERCURY POW1 - Emergency USB Battery Powered Power Bank Compact Portable の商品画像 2

Product Specifications

Battery Capacity
AA batteries dependentmAh
Output Ports
1count
Input Ports
0count
Output Voltage
5 VoltsV
Output Current
UnknownA
Charging Time
N/Ahours
Weight
49.9g
Size
94 x 34 x 34mm
Supported Protocols
N/A
Pass-Through Charging
No

Size & Weight

Weight
1.76 ounces
Hight
3.7 inches
Width
1.34 inches
Depth
1.34 inches

Features

Solar Charging Function

This power bank does not support solar charging. It relies solely on AA batteries, making it unsuitable for situations where sunlight is the only available power source. Users needing solar charging capabilities should consider alternative power banks designed for outdoor use. Solar charging would have added significant value for outdoor enthusiasts.

Pass-Through Charging Function

This power bank does not support pass-through charging. It cannot charge both itself (since it uses disposable batteries) and a connected device simultaneously. This limitation reduces its convenience in situations where only one power outlet is available. Pass-through charging is a useful feature for maximizing charging efficiency.

Low-Current Charging Mode Function

This power bank does not have a dedicated low-current charging mode. It may not be suitable for charging low-power devices like wireless earbuds or smartwatches, as it could potentially damage their sensitive batteries. Using a standard charging mode for low-power devices can lead to overcharging and reduced battery life. A dedicated mode ensures a stable, low-current power flow.

Digital Display Function

While it features a battery level indicator, it does not provide a precise numerical readout of the remaining battery percentage. The indicator uses green and blue lights to estimate battery levels, which is less accurate than a digital display. Users may find it difficult to accurately gauge the power bank's remaining capacity and plan their charging needs accordingly. A digital display offers more precise monitoring.

Built-in Cable Function

This power bank does not have built-in charging cables. Users need to carry their own USB cables to connect their devices, which can be inconvenient. Built-in cables reduce clutter and ensure compatibility, making it easier to charge devices on the go. The absence of this feature adds to the overall inconvenience.

Wireless Charging Function

This power bank does not support wireless charging. Users need to rely on traditional cable charging methods, which may be a limitation for those who prefer the convenience of wireless charging. Wireless charging offers a cable-free solution for quick top-ups at home or in the office. The lack of this feature makes it less versatile compared to modern power banks.

SHOPSTAFF Rating Score

#18
Ranked #18 out of 25 products in Category
2.1
Overall Rating

The MERCURY POW1 is a basic, low-cost emergency power bank. Its performance is limited by the use of AA batteries, making it suitable only for minimal charging needs. Durability is expected to be moderate, given its simple construction. It's best suited for short-term emergency use rather than as a primary power source.

Capacity and Battery Life
1.0
The capacity is entirely dependent on the AA batteries used, offering limited and variable power. Expect only a partial charge for most modern smartphones. This makes it suitable only for essential emergency use, not for extended periods away from power sources. Battery life will vary greatly.
Output Ports and Charging Speed
2.0
It features a single USB-A output port, which is adequate for charging one device at a time. However, it lacks fast charging capabilities like Quick Charge or Power Delivery. Charging speeds are slow, making it less efficient for quickly topping up devices. The output current is not specified, further limiting its versatility.
Size and Portability
4.5
Its compact size and lightweight design make it highly portable and easy to carry in a pocket, purse, or backpack. This is one of its strongest features, making it convenient for emergency situations. The small form factor ensures it won't add much bulk to your everyday carry.
Input Charging Speed
0.0
This power bank does not have an input port for recharging itself. It relies solely on replacing the AA batteries, which can be inconvenient and costly over time. There is no option to recharge it from a wall outlet or other power source, making it less versatile.
Safety Features
2.0
While it likely includes basic overcharge protection, detailed safety features are not specified. Given its simple design and reliance on AA batteries, it may lack advanced safety mechanisms found in higher-end power banks. User reviews suggest potential issues with battery drain and device compatibility.
Durability and Build Quality
2.5
The build quality appears to be basic, with a plastic casing that may not withstand significant wear and tear. User reviews mention issues with opening the device to replace batteries, suggesting potential durability concerns. It is not water-resistant or dustproof, limiting its use in harsh environments.
Manufacturer Reliability and Warranty
2.0
MERCURY is not a well-known brand in the power bank market, raising concerns about long-term reliability and customer support. Warranty information is not readily available, making it difficult to assess the manufacturer's commitment to product quality. Staff ratings indicate a significant percentage of lowest quality reviews.
Cost Performance
3.0
At $26.99, it offers a low-cost emergency charging solution. However, the ongoing cost of replacing AA batteries and its limited functionality reduce its overall value. It is best suited for users who prioritize affordability and portability over performance and long-term usability. Consider the cost of batteries when evaluating its value.

Brand & Manufacturer Details

MERCURY
MERCURY Portable Power Bank for smartphones, tablets and other devices.

Key Highlights

  • Affordable emergency charging solution
  • Compact and portable design
  • Easy to use with readily available AA batteries

Considerations

  • Use rechargeable batteries for better performance
  • Avoid using non-rechargeable batteries for extended periods
  • Check battery levels regularly to ensure availability

Recommended For

  • Users needing a basic emergency charger
  • Travelers seeking a lightweight power option
  • Individuals preferring replaceable batteries

Not Recommended For

  • Users needing high-capacity charging
  • Those requiring fast charging capabilities
  • Users seeking long-term power solutions

Suitable For

  • Short trips where minimal power is needed
  • Emergency situations with no power outlets
  • Backup power for small devices

Not Suitable For

  • Long trips requiring multiple charges
  • Powering devices with large battery capacities
  • Daily use as a primary power bank

Frequently Asked Questions (FAQ)

Q.Will this charger work with my iPhone?
A.This portable power bank is designed to charge smartphones, including iPhones, using 4 AA batteries. However, some staff confirmation notes it may provide a slow charge.
Q.Can I use rechargeable batteries with this power bank?
A.Yes, rechargeable batteries are suitable for this device. Some staff confirmation suggests that rechargeable batteries, like Eneloop Nimh, work well. It's also noted that using non-rechargeable alkaline batteries may result in a quick drain.
Q.Is this suitable for emergency use?
A.Yes, it can be used for emergencies. Some staff confirmation suggests using Energizer Lithium batteries for long-term storage due to their 20-year shelf life and high-temperature rating. However, be aware that some staff confirmation has had difficulty opening the device to insert batteries.
Q.How many charges can I get from one set of batteries?
A.The number of charges depends on the battery type and the device being charged. One staff confirmation mentions a set of alkaline batteries can provide one charge to bring a phone's battery to 20%. To fully charge a phone a user will likely need to use a lot of AA batteries.
Q.Does this power bank have a minimum power draw requirement?
A.Some staff confirmation indicates that the power bank might automatically shut off if the connected device doesn't draw at least 107mA of current. This could be a problem for low-power devices, but it generally works fine for charging smartphones.
Q.Is this product easy to open to insert batteries?
A.Some staff confirmation indicates difficulty opening the device to insert batteries, while others do not mention this issue. Individual experiences may vary.

SHOPSTAFF Rating Ranking

#1

GUSGU

X3 Pro 20,000mAh Power Bank

$59.99(incl. tax)Amazon price as of 2025-09-29

20,000mAh power bank with foldable plug, built-in Type-C cable, and USB-C/USB-A ports for fast charging.

Battery Capacity20000 mAhOutput Ports2 count
Input Ports1 countOutput Voltage20 V
Output Current3.25 ACharging Time hours
Weight5.6 gSize mm
Supported ProtocolsPDPass-Through Charging
Solar Charging FunctionPass-Through Charging FunctionLow-Current Charging Mode FunctionDigital Display FunctionBuilt-in Cable FunctionWireless Charging Function
4.0Overall Rating
4.5Capacity and Battery Life
4.3Output Ports and Charging Speed
4.0Size and Portability
4.0Input Charging Speed
4.2Safety Features
3.8Durability and Build Quality
3.0Manufacturer Reliability and Warranty
4.0Cost Performance
#2

BoxWave

Power Bank Compatible with Netgear Nighthawk MR1100 Mobile Hotspot

$149.95(incl. tax)Amazon price as of 2025-09-29

Portable power bank compatible with Netgear Nighthawk MR1100. High capacity with 65W Power Delivery.

Battery Capacity30000 mAhOutput Ports2 count
Input Ports- countOutput Voltage- V
Output Current- ACharging Time- hours
Weight- gSize- mm
Supported ProtocolsPDPass-Through Charging-
Solar Charging FunctionPass-Through Charging FunctionLow-Current Charging Mode FunctionDigital Display FunctionBuilt-in Cable FunctionWireless Charging Function
3.9Overall Rating
5.0Capacity and Battery Life
4.5Output Ports and Charging Speed
3.5Size and Portability
4.0Input Charging Speed
4.0Safety Features
4.0Durability and Build Quality
3.0Manufacturer Reliability and Warranty
3.5Cost Performance
#3

Cuddeback

Solar Power Bank PW-3600

$119.87(incl. tax)Amazon price as of 2025-09-29

Solar power bank for CuddeLink & Tracks cameras, featuring a built-in NiMH battery and Genius Mount Kit.

Battery Capacity1800 mAhOutput Ports- count
Input Ports- countOutput Voltage7.2 V
Output Current- ACharging Time- hours
Weight- gSize6.25” x 5.75” x 1.6” mm
Supported Protocols-Pass-Through Charging-
Solar Charging FunctionPass-Through Charging FunctionLow-Current Charging Mode FunctionDigital Display FunctionBuilt-in Cable FunctionWireless Charging Function
3.4Overall Rating
2.5Capacity and Battery Life
2.0Output Ports and Charging Speed
3.5Size and Portability
3.0Input Charging Speed
4.0Safety Features
4.5Durability and Build Quality
4.5Manufacturer Reliability and Warranty
3.5Cost Performance
#4

DIY power bank case with wireless charging and LCD. Requires 4 * 21700 batteries. Compact, functional, and affordable.

Battery Capacity- mAhOutput Ports2 count
Input Ports2 countOutput Voltage5 Volts V
Output Current5 Amps ACharging Time- hours
Weight119 gSize140 x 90 x 30 mm
Supported Protocols-Pass-Through Charging-
Solar Charging FunctionPass-Through Charging FunctionLow-Current Charging Mode FunctionDigital Display FunctionBuilt-in Cable FunctionWireless Charging Function
3.4Overall Rating
3.3Capacity and Battery Life
3.5Output Ports and Charging Speed
4.0Size and Portability
3.0Input Charging Speed
4.0Safety Features
3.5Durability and Build Quality
2.0Manufacturer Reliability and Warranty
4.0Cost Performance
#5

BoxWave

Solar Wireless Rejuva PD Power Pack (16000mAh)

$39.95(incl. tax)Amazon price as of 2025-09-29

16000mAh solar power bank with wireless charging, PD, USB-A, and LED flashlight. Rugged design for outdoor use.

Battery Capacity16000 mAhOutput Ports2 count
Input Ports1 countOutput Voltage5V/9V/12 V
Output Current3 ACharging Time - hours
Weight467 gSize - mm
Supported ProtocolsPDPass-Through Charging -
Solar Charging FunctionPass-Through Charging FunctionLow-Current Charging Mode FunctionDigital Display FunctionBuilt-in Cable FunctionWireless Charging Function
3.4Overall Rating
4.0Capacity and Battery Life
3.5Output Ports and Charging Speed
3.0Size and Portability
3.0Input Charging Speed
3.5Safety Features
4.0Durability and Build Quality
2.0Manufacturer Reliability and Warranty
4.0Cost Performance