Dlyfull B4 Battery Tester

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87%
88%
Ease of Use
92%
Accuracy
89%
Battery Compatibility
90%
Portability
85%
Build Quality
91%
Display Clarity
80%
Customer Support
93%
Price vs. Performance
82%
Self-Test Function
72%
Battery Life of Tester
85%
Ease of Setup
94%
Inclusion of Starter Batteries
More

Overview

The Dlyfull B4 Battery Tester is a compact and reliable tool for checking the health of various types of batteries. This portable device is designed to provide users with clear, easy-to-read readings, displaying battery levels as both a percentage and a voltage on an LCD screen. The tester is small enough to be conveniently stored and carried, making it ideal for quick battery checks at home or on the go. Whether you’re testing AA, AAA, 9V, or Li-ion batteries, this battery tester ensures you're always prepared for low battery issues.

Features & Benefits

This battery tester supports a wide range of battery types, including AA, AAA, 9V, and Li-ion, ensuring versatility for most common household and hobby batteries. The LCD screen provides clear and precise status updates, displaying both voltage and battery levels. The operation is simple, with a user-friendly design that makes battery testing straightforward. It even includes two AAA batteries to get started right out of the box. With its compact size and ease of use, the Dlyfull B4 is perfect for anyone needing a reliable battery tester.

Best For

The Dlyfull B4 is ideal for individuals who frequently test a variety of batteries. Whether you're a hobbyist with different battery types or a household looking to keep track of battery health, this tester is well-suited for the task. Its portable and easy-to-use nature makes it a good choice for anyone needing to quickly check the status of their batteries without hassle. It’s especially useful for people with a variety of rechargeable and disposable batteries in everyday use, including remote controls, toys, and power tools.

User Feedback

User reviews of the Dlyfull B4 are largely positive, with many praising its accuracy and ease of use. Customers appreciate the clear LCD display, which makes interpreting battery health quick and straightforward. However, some users have noted that the tester's own battery life could be improved, as it tends to drain quickly with regular use. Despite this, the overall consensus is that this portable battery tester is a practical tool for anyone needing a quick and reliable way to check the health of their batteries.

#Battery Testers
#Household Batteries, Chargers & Accessories
#Electronics

Pros

  • This portable battery checker is easy to use, providing clear and accurate battery readings.
  • The compact design makes it ideal for storage in small spaces or for travel.
  • It supports a wide range of battery types, making it versatile for various household and hobby devices.
  • The LCD screen displays battery levels both as percentage and voltage, offering precise diagnostics.
  • Users appreciate the inclusion of 2 AAA batteries, allowing for immediate use upon arrival.
  • Its simple operation and clear voltage indicators make it a good choice for beginners or non-technical users.

Cons

  • Some users find the battery tester's own battery life shorter than expected, requiring frequent replacements.
  • This device might not provide the high precision needed for certain technical or professional battery testing.
  • While it's portable, the overall build quality may not withstand rough handling or extreme environments.
  • A few users noted that it could support more battery types or specialized testing modes.
  • The tester is not ideal for high-drain or specialized batteries that require advanced diagnostic tools.
  • For users with large collections of batteries, the compact design may feel limiting in terms of functionality.

Ratings

After analyzing verified user reviews across multiple languages and platforms, we’ve gathered authentic feedback on this battery tester. We’ve filtered out any spam, bot-driven, or incentivized reviews to ensure that only genuine, high-quality opinions contributed to the results. Both strengths and pain points are reflected in the scores, providing a balanced overview of how this device performs in real-world use.

Ease of Use
88%
Many users find this tester simple to use, especially with the intuitive LCD screen that clearly displays battery levels. The straightforward operation and the inclusion of starter batteries make it a convenient choice for both beginners and experienced users alike.
A few users mentioned that the lack of detailed instructions could be a bit confusing for first-time users. Some also pointed out that the buttons could be slightly more responsive for smoother operation.
Accuracy
92%
Users rave about the precision of this battery tester, particularly how it accurately displays both percentage and voltage readings. The clear LCD display adds to its overall reliability, helping users assess their batteries with confidence.
Not all users were completely satisfied with the tester's consistency, with some mentioning that the readings could be slightly off when testing batteries of varying ages or types. A few also noted that it might not be as accurate with older, weaker batteries.
Battery Compatibility
89%
The tester supports a wide range of battery types, from AA and AAA to Li-ion and 9V, making it a versatile tool for various household devices. Many users found this multi-type compatibility highly convenient, reducing the need for multiple testers.
While most users were satisfied with the battery compatibility, some mentioned that it struggles a bit with certain specialty battery types, like rechargeable LiFePO4 batteries. There were also occasional concerns about how it handles different sizes of 9V batteries.
Portability
90%
The compact design of this battery tester is highly appreciated for its portability. Whether you're traveling, working on the go, or simply need to store it away, users love how easy it is to carry around or tuck into a drawer.
Despite its lightweight build, a few users feel that it might be a bit too small for larger hands, making it slightly uncomfortable to hold for extended periods. Some also pointed out that the tester could benefit from a more rugged design for outdoor use.
Build Quality
85%
Users generally find the tester well-constructed for its price, with a solid build that holds up under regular use. The matte black finish adds a sleek look, and the device feels durable enough for typical household applications.
A few reviews noted that the tester feels a bit flimsy, especially the buttons and casing. Some users expressed concerns about the long-term durability of the device if exposed to drops or rough handling.
Display Clarity
91%
The LCD screen stands out as a key feature, with users praising its crisp, clear display of both battery percentage and voltage. The easy-to-read status makes testing batteries a hassle-free experience, even for those with less technical knowledge.
A small group of users mentioned that the display could be brighter in direct sunlight. Others said that the text could be a bit too small for some users, particularly those with vision impairments.
Customer Support
80%
20%
Most users have found customer support to be responsive when they’ve needed help. They appreciated the quick replies, especially when dealing with product-related inquiries or minor troubleshooting issues.
Several users expressed frustration with the lack of a detailed FAQ or troubleshooting guide. In some cases, responses from customer service were reported to be delayed or lacking in depth.
Price vs. Performance
93%
This battery tester offers excellent value for money, especially considering its ability to test a variety of battery types with ease. Many buyers feel they are getting a high-quality device at an affordable price, making it a great deal for everyday users.
While the overall price is seen as fair, some users noted that more premium models may offer advanced features or longer-lasting durability. A few buyers would have preferred a more robust design for the price.
Self-Test Function
82%
18%
Users appreciate the self-test function, which adds to the convenience of checking the tester's functionality. This ensures that users can trust their readings without worrying about faulty equipment.
Some users reported that the self-test feature didn’t always work as expected. There were occasional issues with the tester not detecting the batteries correctly during self-testing, leading to inaccurate results.
Battery Life of Tester
72%
28%
The tester’s inclusion of two AAA batteries for immediate use is a positive for many buyers. It’s a quick and easy setup for first-time users who don’t want to deal with extra purchases.
One of the common complaints is the short battery life of the tester itself. Several users mentioned that it drains quickly, especially with frequent testing, which could be a hassle if you need to replace batteries often.
Ease of Setup
85%
Setting up this battery tester is incredibly easy. With minimal steps required, users can start testing batteries right out of the box. The inclusion of starter batteries is a thoughtful touch for immediate use.
A few buyers wished there were more detailed instructions for setting up, as some felt it wasn’t clear how to use the tester initially. While setup is generally simple, a clearer manual could reduce initial confusion.
Inclusion of Starter Batteries
94%
Users love that the tester comes with two AAA batteries, making it ready to use straight away. This adds to the overall convenience, allowing users to test their batteries without any additional purchases.
Although many found the inclusion of starter batteries helpful, some users noted that the batteries included didn’t last as long as expected, especially if used frequently for testing.

Suitable for:

The Dlyfull B4 Battery Tester is ideal for users who regularly deal with different types of batteries, such as hobbyists, technicians, or householders with a variety of devices. Its versatility in testing AA, AAA, 9V, and Li-ion batteries makes it a go-to tool for those with diverse battery needs. Its compact and portable design also suits people who are on the move or travel frequently. Additionally, the simplicity of the device makes it great for those who want quick and clear battery diagnostics, whether they are testing devices at home or on the job site.

Not suitable for:

This battery tester may not be the best choice for users who require extreme accuracy in battery testing or need a device that can handle very specific, niche battery types. Those who frequently deal with rechargeable or high-capacity batteries might find this model lacking in precision. Additionally, users who are looking for a tester with a long-lasting internal battery could be disappointed, as some reviews suggest that the tester itself has a relatively short battery life. It may also not be ideal for those seeking a more rugged or durable design for outdoor or industrial environments.

Specifications

  • Display: The tester features an LCD screen that shows battery status in both percentage and voltage for clear readings.
  • Battery Types Supported: This device supports a wide range of battery types, including AA, AAA, 9V, Li-ion, Ni-MH, Ni-CD, and LiFePO4.
  • Voltage Range: The tester can measure batteries within a voltage range of 1.2V to 12V.
  • Included Batteries: The tester comes with 2 AAA batteries, allowing you to begin testing right out of the box.
  • Size: The tester has a compact, portable design, making it easy to store and carry.
  • Weight: Weighing just 0.3 lbs, the device is lightweight and easy to handle.
  • Battery Indicators: Battery levels are displayed clearly on the screen as both a percentage and voltage reading for easy interpretation.
  • Self-Test Feature: The tester includes a self-test feature to verify its functionality before testing batteries.
  • Operation: The device is simple to operate with a user-friendly interface and no complicated setup.
  • Color: The tester comes in a sleek black color, making it easy to match with most tools and environments.
  • Warranty: The device is backed by a 12-month warranty from the manufacturer, providing peace of mind.
  • Compatibility: This tester is compatible with a wide range of household and hobby batteries, making it ideal for diverse testing needs.
  • Portability: With its compact and lightweight design, the tester is portable enough to be used on the go or in various settings.
  • Accuracy: The tester provides accurate battery readings, ensuring users can determine the health of their batteries reliably.
  • Usage Scenarios: Ideal for individuals who regularly test various battery types, from household to hobby batteries.
  • Ease of Use: The device is designed for ease of use, with a straightforward interface and quick battery testing process.
  • Display Readability: The LCD screen provides clear and easily readable indicators, making it suitable for all users, regardless of their technical expertise.
  • Build Quality: While lightweight, the tester is built to handle routine use without compromising on functionality.

FAQ

To use the Dlyfull B4 Battery Tester, insert the battery into the appropriate slot, turn on the device, and place the battery you want to test into the tester's compartment. The LCD screen will display the battery's charge level in both percentage and voltage.

This battery tester supports a wide variety of battery types, including AA, AAA, 9V, Li-ion, Ni-MH, Ni-CD, and LiFePO4, making it versatile for many household and hobby needs.

No setup is required other than inserting the included 2 AAA batteries to power the tester. Once the batteries are inserted, it’s ready to use for testing any compatible battery.

The LCD screen shows both the voltage and percentage of the battery's charge, providing a clear and accurate reading for most standard battery types. The tester is generally well-regarded for its precise diagnostics in typical use cases.

The percentage indicates the relative charge remaining, while the voltage provides the exact electrical measurement of the battery. For example, a fully charged AA battery might read around 1.5V and 100%, while a depleted one may show a much lower percentage and voltage.

Yes, this device supports rechargeable batteries, including Li-ion and Ni-MH types. It’s a great tool for checking the health of your rechargeable batteries, ensuring they’re still functional for reuse.

Some users report that the tester's own battery life is relatively short and requires frequent replacement. Additionally, it might not be suitable for testing high-drain or specialty batteries with more advanced needs.

While the tester is lightweight and compact, it may not be built for rough handling. If you're using it in environments where it might get dropped or exposed to extreme conditions, the device could wear out faster.

Yes, the Dlyfull B4 Battery Tester can test 9V batteries along with a variety of other common battery types. It’s especially useful for checking both small household batteries and larger ones like 9V.

If you're getting inaccurate readings, try recalibrating by testing known good batteries. If the issue persists, check for dirt or debris in the battery compartment, or consider replacing the tester's internal batteries to ensure accurate measurements.