---
product_id: 679372414
title: "Battery Tester, LCD Display Universal Battery Checker for for Ni-MH, Ni-CD, Li-ion, Alk & LiFe04 Batteries(AA AAA C D 9V 12V 18650 CR123A 2CR5 CR2032 Cells), 2X AAA Batteries Included"
brand: "dlyfull"
price: "₩172499"
currency: KRW
in_stock: true
reviews_count: 5
category: "Dlyfull"
url: https://www.desertcart.kr/products/679372414-battery-tester-lcd-display-universal-battery-checker-for-for-ni
store_origin: KR
region: South Korea
---

# Accurate voltage to 0.01V Dual-format LCD readout Tests 12 battery types Battery Tester, LCD Display Universal Battery Checker for for Ni-MH, Ni-CD, Li-ion, Alk & LiFe04 Batteries(AA AAA C D 9V 12V 18650 CR123A 2CR5 CR2032 Cells), 2X AAA Batteries Included

**Brand:** dlyfull
**Price:** ₩172499
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your battery game — never get caught powerless again!

## Quick Answers

- **What is this?** Battery Tester, LCD Display Universal Battery Checker for for Ni-MH, Ni-CD, Li-ion, Alk & LiFe04 Batteries(AA AAA C D 9V 12V 18650 CR123A 2CR5 CR2032 Cells), 2X AAA Batteries Included by dlyfull
- **How much does it cost?** ₩172499 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/679372414-battery-tester-lcd-display-universal-battery-checker-for-for-ni)

## Best For

- dlyfull enthusiasts

## Why This Product

- Trusted dlyfull brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Self-Check Function:** Long-press the check button to monitor tester’s own battery health and avoid downtime.
- • **Ready to Use Out of the Box:** Includes 2 AAA batteries, a welcome guide, and backed by 12-month warranty + lifetime support.
- • **Portable & Lightweight Design:** Compact 6.14" x 3.66" tester weighing just 0.36 lbs — perfect for on-the-go diagnostics.
- • **Universal Battery Compatibility:** Supports 12 battery chemistries & sizes from AAA to 12V packs for all your devices.
- • **Precision Voltage & Capacity Readings:** Get exact voltage and charge percentage with a crisp LCD display for confident battery decisions.

## Overview

The Dlyfull-B4 Battery Tester is a versatile, precision tool designed for professionals and tech-savvy users to quickly assess the health of 12 different battery types, including Ni-MH, Li-ion, Alkaline, and LiFePO4. Featuring a clear LCD display with voltage and percentage readouts, a smart self-check function, and a compact, portable design, it ensures you stay powered and efficient across all your devices. Comes ready with batteries and backed by lifetime customer support.

## Description

Still struggling to distinguish between dead and good batteries among the tons you've collected over the years? Look no further!In the past, you had to find a device and spend ages plugging in every single battery to see if it worked. Now, say goodbye to that hassle with the Dlyfull-B4 Universal Battery Tester, your expert assistant in battery management.Why Choose the Dlyfull-B4?Power Supply: The Dlyfull-B4 Battery Tester is powered by two AAA 1.5V alkaline batteries.Battery Types Tested: The Dlyfull-B4 Universal Battery Tester can test 12 types of batteries, suitable for the following:A. 1.2V Ni-MH Cylindrical Batteries: AAA, AA, C, SC, D, N SizeB. 1.45V Zinc-Air Batteries: A10, A13, A312, A675 SizeC. 1.5V Alkaline Cylindrical Batteries: AAA, AA, C, SC, D, N SizeD. 1.5V Alkaline Button Cells: AG0, AG1, AG2, AG3, AG4, AG5, AG6, AG7, AG8, AG9, AG10, AG11, AG12, AG13 SizeE. 3.0V Lithium Manganese Button Cells: CR927, CR1025, CR1216, CR1220, CR1616, CR1620, CR2016, CR2025, CR2032, CR2320, CR2430, CR2450 SizeF. 3.0V Lithium Manganese Cylindrical Batteries: CR123A, CR2 SizeG. Digital Camera Batteries: CR-V3 SizeH. 6.0V Lithium Manganese Combination Batteries: 2CR5, CR-P2 SizeI. 3.2V LiFePO4 Batteries: 10440, 14500, 14650, 16340, 17335, 17500, 18500, 18650, 26500, 22650, 26650 SizeJ. 3.7V Li-ion Batteries: 10440, 14500, 14650, 16340, 17335, 17500, 18500, 18650, 26500, 22650, 26650, 32650 SizeK. 9.0V Alkaline and NiMH 9V BatteriesL. 12.0V Alkaline Combination Batteries: 23A, 27A SizePrecision: Tests battery voltage accurate to two decimal places (1 decimal place for 12V batteries).Functionality: Measures both battery voltage and capacity percentage.Usage: Cylindrical batteries use the black negative pin; button and combination batteries use corresponding slots.Display: Features an LCD screen with large, easy-to-read font.Efficiency: Low standby power consumption for long-lasting use.Self-Check Function: Long press the "Check" button to view the tester's battery level for timely replacement.Dimensions: 6.14 inches (L) x 3.66 inches (W) x 0.96 inches (H)Weight: 154.6 ± 5g (without batteries)

Review: I read about this device in an on-line article since I was in the market for a battery tester. I can't count the number of battery powered devices in my house and when one of them stops working the first thing I need to check is the batteries. I have a battery tester that is part of a battery storage tray but it's very rudimentary and permanently attached to the tray. I needed one that I can take to the malfunctioning device. The article I read pointed to a device that meets this criteria. I ordered this one based on the recommendation in the article. When it came in I was ready to try it with a number of batteries I had put aside for the purpose of checking out this tester. I used it to check various battery types (AA-Alkaline, AAA-Alkaline, Ni-CAD, L-ion). The results confirmed that the batteries were generally in the condition I suspected they were in. The readings displayed showed the terminal voltage and the percent of charge remaining. I worked as an electronics engineer designing test equipment so I'm always looking for inadequacies in stuff like this. I can say I have 100% confidence in the tester. If you have a lot of battery powered devices, get one. I'm glad I did.
Review: It is an excellent item at a great price, well packed, and delivered promptly with no issues. The seller is an A+++ on desertcart!

## Features

- 【WHAT YOU WILL GET】: Dlyfull-B4 Battery Health Tester & Checker, 2 Alkaline 1.5V AAA Batteries, Welcome Guide, 12-Month Warranty, and Lifetime 24-Hour Friendly Customer Service.
- 【ROBUST COMPATIBILITY】: Universal battery tester is compatible with 12 battery types, including 1.2V Ni-MH/1.45V Zinc Air/1.5V Alkaline/3.0V Lithium Manganese/3.2V LiFePO4/3.7V Li-ion/6.0V, 9.0V, and 12.0V Alkaline packs ect. It supports AAA AA C SC D N sizes, button cells, CR123A, CR-V3, 2CR5, 23A, 27A, and more, offering versatile compatibility for various applications.
- 【SMART LCD DISPLAY】The battery checker features a sophisticated LCD display screen that showcases the voltage and battery level of the tested battery. The battery level is presented in two formats: as a percentage and battery level bar display, providing clear and precise information about the battery's status.
- 【PORTABLE & EASY TO USE】: Cylindrical batteries can be tested using the black negative pin, while button and combination batteries only need to be placed in their corresponding slots for testing. The compact battery analyzer weighs less than 0.36 pounds, making it extremely convenient for carrying and storage.
- 【CHECK BUTTON】: The battery tester includes a self-check button. Press and hold for about 3 seconds to perform a self-check and view the power status of the batteries powering the device, allowing for timely replacement when necessary.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D393WVPK |
| Best Sellers Rank | #123,825 in Electronics ( See Top 100 in Electronics ) #143 in Household Battery Testers |
| Manufacturer | Dlyfull |
| Manufacturer reference | B4 |
| Product Dimensions | 15.49 x 9.14 x 2.29 cm; 136.08 g |

## Product Details

- **Brand:** DLYFULL
- **Colour:** Black
- **Item weight:** 136 g
- **Power source:** NO
- **Style:** Black

## Images

![Battery Tester, LCD Display Universal Battery Checker for for Ni-MH, Ni-CD, Li-ion, Alk & LiFe04 Batteries(AA AAA C D 9V 12V 18650 CR123A 2CR5 CR2032 Cells), 2X AAA Batteries Included - Image 1](https://m.media-amazon.com/images/I/71M5jJ-UoDL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***F on 19 September 2025*

I read about this device in an on-line article since I was in the market for a battery tester. I can't count the number of battery powered devices in my house and when one of them stops working the first thing I need to check is the batteries. I have a battery tester that is part of a battery storage tray but it's very rudimentary and permanently attached to the tray. I needed one that I can take to the malfunctioning device. The article I read pointed to a device that meets this criteria. I ordered this one based on the recommendation in the article. When it came in I was ready to try it with a number of batteries I had put aside for the purpose of checking out this tester. I used it to check various battery types (AA-Alkaline, AAA-Alkaline, Ni-CAD, L-ion). The results confirmed that the batteries were generally in the condition I suspected they were in. The readings displayed showed the terminal voltage and the percent of charge remaining. I worked as an electronics engineer designing test equipment so I'm always looking for inadequacies in stuff like this. I can say I have 100% confidence in the tester. If you have a lot of battery powered devices, get one. I'm glad I did.

### ⭐⭐⭐⭐⭐ Review
*by M***. on 26 December 2025*

It is an excellent item at a great price, well packed, and delivered promptly with no issues. The seller is an A+++ on Amazon!

### ⭐⭐⭐⭐ Review
*by M***N on 27 January 2025*

Seems to be working ok. The instruction booklet could be more helpful. I was confused at first because the display does not show anything, there is no on/off switch. There is 1 button I had thought would serve that purpose but it does not, it turns on the display very briefly and then shuts down. Ignore the button and just put the battery positive on charger and use the tester stick on the negative, then the display will show.

## Frequently Bought Together

- Dlyfull Battery Tester, LCD Display Universal Battery Checker for Ni-MH, Ni-CD, Li-ion, Alk & LiFe04 Batteries(AA AAA C D 9V 12V 18650 CR123A 2CR5 CR2032 Cells), 2X AAA Batteries Included
- Battery Tester, Dlyfull LCD Display Universal Battery Checker for AA AAA C D 9V CR2032 CR123A CR2 CRV3 2CR5 CRP2 1.5V/3V Button Cell Batteries, 1x AAA batteries included
- Dlyfull Battery Tester, Small Battery Testers Universal Battery Checker for AAA AA C D 9V 1.5V Button Cell Household Batteries

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-14*