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Dlyfull Universal Battery Tester with LCD Display, Multi Purpose Small Battery Checker for AA AAA C D 9V CR2032 CR123A CR2 CRV3 2CR5 CRP2 1.5V/3V Button Cell Batteries

4.6 out of 5 stars 10,356 ratings
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Purchase options and add-ons

Brand DLYFULL
Power source Battery Powered
Style Voltmeter
Colour Black
Item weight 115 Grams

About this item

  • HIGH COMPATIBILITY: It is not only suitable for AA, AAA, C, CR123A, D, 9V, N, CR2, CRV3, 2CR5, CR-P2 cylindrical battery testing, but also good for checking a wide variety of button cell batteries
  • CRISP LCD SCREEN: Easy to use analyzer shows what you need to know about your battery’s health, it will accurately shows whether the battery is in poor, weak, or good condition of voltage
  • QUICK RESULTS: Simply place a battery into the decent battery detector, it will shows you quickly the status of your batteries’ health by the using bars, helps you avoid battery damage from unnecessary recharges. DON'T POWERED BY RECHARGEABLE BATTERY NOR TEST RECHARGEABLE BATTERIES
  • REMARKABLY COMPACT: One of the smallest and lightest portable battery checker. A pocket-friendly compact chassis with an anti-slip finish enables a firm grip in your hand for battery checking
  • WHAT YOU GET: Dlyfull Universal Battery Tester(1x AAA battery included), welcome guide, & our worry- free 18 months guarantee and friendly customer service. A living assistant helps you save money as well as prolong the lifespan of all your batteries
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Frequently bought together

Dlyfull Universal Battery Tester with LCD Display, Multi Purpose Small Battery Checker for AA AAA C D 9V CR2032 CR123A CR2 CR
This item: Dlyfull Universal Battery Tester with LCD Display, Multi Purpose Small Battery Checker for AA AAA C D 9V CR2032 CR123A CR2 CRV3 2CR5 CRP2 1.5V/3V Button Cell Batteries
£15.99
Get it as soon as Wednesday, May 28
In stock
Sold by DlyfullDirect UK and sent from Amazon Fulfillment.
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Duracell Plus AA Batteries (24 Pack) - Alkaline 1.5V - Up To 100% Extra Life - Reliability For Everyday Devices - 0% Plastic
£18.16 (£0.76/count)
In stock
Sent from and sold by Amazon.
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Duracell Plus AAA Batteries (12 Pack) - Alkaline 1.5V - Up To 100% Extra Life - Reliability For Everyday Devices - 0% Plastic
£8.50 (£0.71/count)
In stock
Sent from and sold by Amazon.
Total price: $00
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Product information

Technical Details

Manufacturer ‎DLYFULL
Part number ‎B2
Item Weight ‎115 g
Product Dimensions ‎13.21 x 8.79 x 2.39 cm; 115 g
Batteries ‎1 AAA batteries required.
Item model number ‎B2
Colour ‎Black
Style ‎Voltmeter
Power source type ‎Battery Powered
Voltage ‎1.5 Volts
Item Package Quantity ‎1
Measurement Accuracy ‎not
Specification met ‎CE, FCC, RoHS
Included components ‎battery tester
Batteries included? ‎No
Batteries Required? ‎No

Additional Information

ASIN B07DPLD6KB
Customer Reviews
4.6 out of 5 stars 10,356 ratings

4.6 out of 5 stars
Best Sellers Rank 2,425 in Electronics & Photo (See Top 100 in Electronics & Photo)
4 in Household Battery Testers
Date First Available 9 Nov. 2020

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Dlyfull Universal Battery Tester with LCD Display, Multi Purpose Small Battery Checker for AA AAA C D 9V CR2032 CR123A CR2 CRV3 2CR5 CRP2 1.5V/3V Button Cell Batteries

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What's in the box?

  • battery tester

    • From the brand

    Previous page

    2. Dlyfull is a professional battery, charger and outdoor products manufacturer with more than 15 years, which is one of the leading companies of household charging technology that are engaged in smart battery chargers and other charging equipments.

      Dlyfull has become more and more popular due to its reliable quality, improved recharge technology and no-hassle service that also makes us who we are.

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    5. DLYFULL
    Next page

    Product Description

    Universal Battery Tester

    Check Multi-type of Batteries

    9V Battery丨1.5V Cylindrical Battery AA, AAA, C, D

    3V Cylindrical Battery CR2, CR123A, CR-V3

    6V Cylindrical Digital Battery 2CR5, CR-P2

    1,5V Alkaline Button Battery AG1, AG2, AG3, AG4, AG5, AG6, AG7, AG8, AG9, AG10, AG10, AG12, AG13

    3V Lithium Battery CR927, CR1025, CR1216, CR1220, CR1225, CR1616, CR1620, CR1632, CR2016, CR2025, CR2032

    battery tester
    battery Checker

    Easy to Read LCD Display

    Battery test results are clear at a glance.

    Battery status is divided into three categories: "POOR/LOW/GOOD" .

    Simple and Fast Pperation

    Works well with variety of popular battery sizes(AA, AAA, CR123 etc.)

    Cylindrical Batteries; Button Batteries; 9V Batteries; Special Batteries

    Meets most household needs.

    aa Battery Checker
    Battery Tester

    Distinguish Good or Not

    Helps you differentiate between good and bad batteries among the large collection of batteries you have collected over the years.

    Battery Tester

    Checking Issues Battery or Device

    Helps you distinguish if your device won't start due to a dead battery or a damaged device.

    Still Harassed by How to Distinguish Between Died and Good Batteries from Tons of Loose Batteries Collected Over Years? If so, Here is the Ideal Place to Help You Solve it!

    In old days, you had to find a little transistor radio or walkman or some other device & spend half an hour plugging every single battery in to see if would run said device.But now, say goodbye to such stupid action since you are going to living with experienced assistant---Dlyfull Universal Battery Tester

    Main Features:

    • Easily check the battery status for most of your general household batteries
    • Works well with variety of popular battery sizes(AA, AAA, CR123 etc.)
    • Easily operate & economical for most of you
    • Large LCD display clearly shows the results
    • Powered by 1x AAA battery(battery included)Anti-slip finish holds comfortable & use safety

    What is Included: 1x Dlyfull Universal Battery Checker; 1x AAA battery(pre-installed); 1x User Manual

    Give You More Choices

    B2 Black Battery Tester

    DB1 Battery Tester

    B2 Red Battery Tester

    B2 Blue Battery Tester

    B2 Gray Battery Tester

    B4 Battery Tester

    B3 Battery Tester

    Customer Reviews
    4.6 out of 5 stars 10,356
    3.9 out of 5 stars 36
    4.4 out of 5 stars 269
    4.5 out of 5 stars 669
    4.6 out of 5 stars 205
    4.2 out of 5 stars 70
    4.4 out of 5 stars 234
    Price
    		£15.99 £20.99 £15.99 £15.99 £15.99 £23.59 £21.19
    Testable Battery Types
    		Button & Disposable Batteries 1.2V/1.5V/3V/3.7V/9V Button & Disposable Batteries Button & Disposable Batteries Button & Disposable Batteries Button, Rechrg, Disp Batteries Button, Rechrg, Disp Batteries
    Test Function
    		Battery Capacity Battery Capacity Battery Capacity Battery Capacity Battery Capacity Battery Capacity Capacity; Internal Resistance
    Screen Display
    		LCD Rating Bar LCD Display LCD Rating Bar LCD Rating Bar LCD Rating Bar Percentage & Volts Percentage & Volts
    Battery Included
    		1x AAA Batteries Built-in rechargeable battery 1x AAA Batteries 1x AAA Batteries 1x AAA Batteries 2x AAA Batteries 2x AAA Batteries
    Size and weight
    		‎13.25 x 8.8 x 2.4cm; 100 g 9.8 x 6.5 x 3.2cm; 93g ‎13.25 x 8.8 x 2.4cm; 100 g ‎13.25 x 8.8 x 2.4cm; 100 g ‎13.25 x 8.8 x 2.4cm; 100 g 15.6 x 9.3 x 2.43 cm; 154.6 g 13.5 x 7.55 x 2.8 cm; 148 g

    Customer reviews

    4.6 out of 5 stars
    10,356 global ratings

    Review this product

    Share your thoughts with other customers
    Write a customer review

    Customers say

    Customers find the battery tester easy to use and appreciate its compact size that accommodates various battery types. They praise its functionality, with one customer noting it works well with normal AA batteries, and another mentioning it tests accurately. Moreover, the device helps save money by preventing the discarding of good batteries, and customers consider it good value for money. However, the quality receives mixed reviews, with some finding it well-made while others report poor quality.

    AI-generated from the text of customer reviews

    Select to learn more

    46 customers mention ‘Functionality’36 positive10 negative

    Customers find the battery tester functional and useful, with one mentioning it works well with AA batteries.

    "...It's functional, can be used for different size batteries plus button batteries. It is not to heavy and is accurate." Read more

    "This seems to work well. I can even test out my hearing aid batteries on it (warning; they don’t function well below 30%!). It is light weight...." Read more

    "Perfect. Ideally suited for reading what's left energy wise in the battery" Read more

    "Works perfectly. Product quality is average but nevertheless does the job intended." Read more

    35 customers mention ‘Ease of use’35 positive0 negative

    Customers find the battery tester easy to use and appreciate that it saves time.

    "This is an excellent battery tester. Easy to use. The size is handy, not easy to misplace like a previous tester I had...." Read more

    "Easy to use and also a quick way to decide on the future of a battery. Robustly made." Read more

    "Easy to use speedy delivery" Read more

    "GOOD BUY EASY TO USE" Read more

    27 customers mention ‘Battery testing’27 positive0 negative

    Customers appreciate the battery tester's ability to test various types, including AA, AAA, C, D, 9V, CR2032, CR123A, CR2, CRV3, 2CR5, CRP2, and 1.5V/3V button cells.

    "This is an excellent battery tester. Easy to use. The size is handy, not easy to misplace like a previous tester I had...." Read more

    "Easy to use and also a quick way to decide on the future of a battery. Robustly made." Read more

    "...Avoids recycling those will power remaining. Also helps check any batteries you are about to put in an appliance have the same power level for..." Read more

    "good for testing many types of battery." Read more

    24 customers mention ‘Battery life’22 positive2 negative

    Customers appreciate the battery tester's ability to extend battery life, saving them money and preventing the disposal of good ones.

    "...Avoids recycling those will power remaining...." Read more

    "Tests a wide range of batteries. Instantly shows if any power left. Good value for money." Read more

    "I really like the design and it works well measuring normal AA, AAA, 9V batteries, but it's terrible at measuring 3V button batteries...." Read more

    "Easy to use and accurate for testing how much battery life left in different batteries" Read more

    17 customers mention ‘Value for money’14 positive3 negative

    Customers find the battery tester to be good value for money.

    "...Glad I finally bought one and it's saved me money by not throwing away part used batteries." Read more

    "This is simply brilliant. It's already saved me money, as I was going to dispose of all the batteries in my radio, but I found out that only one had..." Read more

    "...This is worth paying a little more for and is very easy to use." Read more

    "...Instantly shows if any power left. Good value for money." Read more

    15 customers mention ‘Useability’15 positive0 negative

    Customers find the battery tester useful and consider it a great piece of kit.

    "Great little device to check how much power is left in your batteries. Avoids recycling those will power remaining...." Read more

    "so useful great bit of kit with a good read out" Read more

    "Won't go into great detail on this great piece of kit as you can see all the info & a good video on what it can do...." Read more

    "Great piece of kit. Easy to test all sorts of batteries including the button types." Read more

    11 customers mention ‘Size’11 positive0 negative

    Customers appreciate the size of the battery tester, finding it compact and handy, with the ability to accommodate all popular battery types.

    "This is an excellent battery tester. Easy to use. The size is handy, not easy to misplace like a previous tester I had...." Read more

    "...It is light weight. It does take a little time to adjust once the machine battery has been inserted, but 30 seconds is enough." Read more

    "...Being a small mobile unit with no wires it's great to carry & easy to check batteries on the fly...." Read more

    "Good compact battery tester for all disposable batteries AAA to D, 9V & Lithium 'coin' sizes." Read more

    14 customers mention ‘Quality’7 positive7 negative

    Customers have mixed opinions about the battery tester's construction, with some finding it well-made while others report poor quality.

    "...Robustly made." Read more

    "Works perfectly. Product quality is average but nevertheless does the job intended." Read more

    "...When it arrived I was pleased to see that it was fairly sturdy and after looking it over I tried all of the old batteries and found that most had..." Read more

    "...It was untouchable...." Read more

    Dlyfull Universal Battery Tester, Great Piece Of Kit...
    5 out of 5 stars
    Dlyfull Universal Battery Tester, Great Piece Of Kit...
    Won't go into great detail on this great piece of kit as you can see all the info & a good video on what it can do. We put out a lot of battery powered outdoor lights at Xmas, so when done we can check the batteries in them to see if there spent. Being a small mobile unit with no wires it's great to carry & easy to check batteries on the fly. Really happy with this tester & would highly recommend.
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    Top reviews from United Kingdom

    Top reviews from other countries

    Translate all reviews to English
    • Sierra Fan
      5.0 out of 5 stars Exceeded My Expectations - Highly Recommended
      Reviewed in the United States on 24 March 2025
      Verified Purchase
      Okay, let me start by saying I'm not a scientist. I'm not into whether this tester is "under load" or "over load" or whatever those terms may mean. I know that amount of precision is important for some people. Understood.

      For me and what I do know is that this tester gave results that I expected. For batteries that I knew weren't working (because the flashlight or other item wasn't working), this tester indicated those batteries were DEAD. For new batteries that should be GOOD with a full charge, this tester showed GOOD/FULLY CHARGED every time. For some batteries that have been used in items for a while, the tester showed WEAK, or slightly less than full. To be expected. I tested batteries from Amazon and other retailers. Duracell, Energizer, etc. If the batteries were supposed to be new, this tester showed they were. If they were corroded, had been used for a long time, or were well past the use-by-date, the tester showed WEAK or DEAD.

      That's what I wanted. I did look at some of the testers that were in the under $10 range. I didn't like the way you had to hold button cell and CR2032 batteries to test them. They easily slid out of those testers if you didn't hold them just right. So, I spent around double the price for this tester using it to test literally every size of battery I had from 9V down to the smallest button coin batteries. I had over 20 LR44 and LR1154 batteries I use in my bike computers. This tester quickly showed me the weak batteries and the good batteries. I knew what they probably were based upon use and the date on the package. But this tester verified those readings.

      I also had some loose batteries that I literally did not know if they were good or bad. I put every one of those in the tester and wind up with many dead batteries, some okay ones, and many good ones. It was easy to toss out the ones that I couldn't trust in the future using this tester.

      I gave the tester 5 stars. If it lasts, it's worth 10 stars. Unless you need scientific precision using load/no load factors, this tester is awesome in my opinion. I will buy a second one to have when I invariably can't find this one. Highly recommended.
      Report
    • Chuckie
      5.0 out of 5 stars Very handy and well designed
      Reviewed in Australia on 29 January 2020
      Verified Purchase
      I have a number of battery-operated devices and like to take the battery out when not used over a period of time (previous bad experiences with leaked battery juice). This device works on all my battery types and I can tell in an instant which battery is good even though they are all mixed up in my battery storage compartment.
      Report
    • Aqua qld
      3.0 out of 5 stars Average Battery Tester
      Reviewed in Australia on 11 December 2023
      Verified Purchase
      Quite pricey for a battery tester that doesn't work as good as it claims. Average performance.
      Report
    • eric_0581
      4.0 out of 5 stars 9Vの残量チェック可能
      Reviewed in Japan on 19 May 2025
      Verified Purchase
      9Vトランジスタ電池の残量が分からず困っていました。
      あまり市場にないので今回購入出来てありがたかったです。
      コイン電池もチェックでき良いと思います。
      Report
    • G. Perez
      5.0 out of 5 stars Great Tester
      Reviewed in the United States on 12 May 2025
      Verified Purchase
      This is a really nice battery tester. I work building maintenance at a golf resort, so I regularly have to change out batteries in things like the key card door locks, TV remotes, and soap/paper towel dispensers. This tester is great at checking which batteries are good and bad. Nothing fancy, just pop the battery in and see where the percentage bar stops. Too easy
      Report

    Product Summary: Dlyfull Universal Battery Tester with LCD Display, Multi Purpose Small Battery Checker for AA AAA C D 9V CR2032 CR123A CR2 CRV3 2CR5 CRP2 1.5V/3V Button Cell Batteries

    From DLYFULL

    4.6 out of 5 stars, 10,356 ratings

    Customer reviews

    200+ bought in past month

    Price

    One-time purchase: £15.99

    Apply 12% voucher Shop items | Terms

    All prices include VAT.

    Purchasing options

    Other sellers

    Other sellers

    About this Item

    • HIGH COMPATIBILITY: It is not only suitable for AA, AAA, C, CR123A, D, 9V, N, CR2, CRV3, 2CR5, CR-P2 cylindrical battery testing, but also good for checking a wide variety of button cell batteries
    • CRISP LCD SCREEN: Easy to use analyzer shows what you need to know about your battery’s health, it will accurately shows whether the battery is in poor, weak, or good condition of voltage
    • QUICK RESULTS: Simply place a battery into the decent battery detector, it will shows you quickly the status of your batteries’ health by the using bars, helps you avoid battery damage from unnecessary recharges. DON'T POWERED BY RECHARGEABLE BATTERY NOR TEST RECHARGEABLE BATTERIES
    • REMARKABLY COMPACT: One of the smallest and lightest portable battery checker. A pocket-friendly compact chassis with an anti-slip finish enables a firm grip in your hand for battery checking
    • WHAT YOU GET: Dlyfull Universal Battery Tester(1x AAA battery included), welcome guide, & our worry- free 18 months guarantee and friendly customer service. A living assistant helps you save money as well as prolong the lifespan of all your batteries

    Product description

    Still Harassed by How to Distinguish Between Died and Good Batteries from Tons of Loose Batteries Collected Over Years? If so, Here is the Ideal Place to Help You Solve it! In old days, you had to find a little transistor radio or walkman or some other device & spend half an hour plugging every single battery in to see if would run said device.But now, say goodbye to such stupid action since you are going to living with experienced assistant---Dlyfull Universal Battery Tester Main Features: Easily check the battery status for most of your general household batteries Works well with variety of popular battery sizes(AA, AAA, CR123 etc.) Easily operate & economical for most of you Large LCD display clearly shows the results Powered by 1x AAA battery(battery included)Anti-slip finish holds comfortable & use safety Certificated by CE/RoHS/FCC What is Included 1x Dlyfull Universal Battery Checker 1x AAA battery(pre-installed) 1x User Manual
    Report an issue with this product or seller

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