1. Produktet er slutview
The Dlyfull B2 Black Battery Tester and B4 Universal Battery Tester are designed to accurately assess the health and remaining charge of a wide variety of battery types. This manual provides comprehensive instructions for the safe and effective use of both devices, ensuring optimal performance and longevity.

Image: Dlyfull B2 Black and B4 Universal Battery Testers shown with included AAA batteries.
2. Sikkerhedsoplysninger
- Always handle batteries with care. Do not short-circuit batteries.
- Forsøg ikke at teste beskadigede eller utætte batterier.
- Ensure correct polarity when inserting batteries into the testers. Incorrect polarity can damage the device or the battery.
- The Dlyfull B2 tester is not powered by rechargeable batteries and should not be used to test rechargeable batteries.
- Keep the testers away from water, high temperatures, and direct sunlight.
- Dette produkt er ikke et legetøj. Opbevares utilgængeligt for børn.
3. Pakkens indhold
Når du åbner din pakke, bedes du kontrollere, at alle følgende varer er inkluderet:
- 1 x Dlyfull B2 Black Battery Tester
- 1 x Dlyfull B4 Universal Battery Health Tester & Checker
- 3 x Alkaline 1.5V AAA Batteries
- 1 x Welcome Guide (this manual)
4. Opsætning
4.1. Dlyfull B4 Universal Battery Tester Battery Installation
The Dlyfull B4 tester requires 3 AAA batteries for operation (included). The Dlyfull B2 tester does not require internal batteries for testing.
- Locate the battery compartment on the back of the Dlyfull B4 tester.
- Skub batterirummets dæksel op.
- Isæt 3 AAA-batterier, og sørg for at polerne (+ og -) vender korrekt som angivet inde i batterirummet.
- Luk batterirummets dæksel forsvarligt.

Image: The Dlyfull B4 tester's smart LCD display and the battery compartment for AAA batteries.
5. Betjeningsvejledning
5.1. Dlyfull B4 Universal Battery Tester Operation
The B4 tester features a sophisticated LCD display that shows battery voltage and level. The battery level is presented as a percentage and a battery level bar.

Image: Demonstrations of testing various battery types using the Dlyfull B4 tester, including cylindrical, 9V, and button cell batteries.
Testing Procedure for B4:
- Identify the correct slot or contact point for your battery type on the B4 tester. The tester supports 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. It supports AAA, AA, C, SC, D, N sizes, button cells, CR123A, CR-V3, 2CR5, 23A, 27A, and more.
- Insert the battery, ensuring correct polarity. The tester is equipped with polarity markings for easy and accurate insertion.
- The LCD display will automatically show the voltage and remaining battery level.

Image: The Dlyfull B4 tester highlighting its polarity guidance indicators for correct battery insertion.
5.2. Dlyfull B2 Black Battery Tester Operation
The B2 tester provides quick results using a bar display to indicate battery health (Poor, Weak, Good).

Image: The Dlyfull B2 tester's easy-to-read LCD screen, displaying battery health categories: Poor, Weak, and Good.
Testing Procedure for B2:
- Identify the appropriate slot or contact point for your battery type on the B2 tester. It is suitable for AA, AAA, C, CR123A, D, 9V, N, CR2, CRV3, 2CR5, CR-P2 cylindrical battery testing, and various button cell batteries.
- Place the battery into the designated slot or make contact with the probes.
- The display will quickly show the status of your battery's health using the bar indicators.

Billede: Eksamples of testing different battery types (9V, button cell, cylindrical) using the Dlyfull B2 tester.
6. Vedligeholdelse
- Clean the testers regularly with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Ensure the battery contacts are free from dirt or corrosion for accurate readings.
- When not in use for extended periods, remove the AAA batteries from the Dlyfull B4 tester to prevent leakage.
- Store the testers in a cool, dry place, away from extreme temperatures and humidity.
7. Fejlfinding
7.1. Dlyfull B4 Tester: No Display or Faint Display
- Check if the AAA batteries are inserted correctly with the right polarity.
- Replace the AAA batteries with new ones if they are depleted.
- Sørg for, at batterirummets dæksel er forsvarligt lukket.
7.2. Unøjagtige aflæsninger
- Ensure the battery being tested is clean and free of corrosion on its terminals.
- Verify that the battery is correctly seated in the tester's slot or that the probes make firm contact.
- Confirm that you are using the correct testing method/slot for the specific battery type.
- Remember that the B2 tester is not designed for rechargeable batteries.
7.3. Tester Not Responding
- For the B4 tester, try removing and reinserting the AAA batteries.
- If the issue persists, contact DLYFULL customer service.
8. Specifikationer
8.1. Dlyfull B2 Black Battery Tester
- Kompatibilitet: AA, AAA, C, CR123A, D, 9V, N, CR2, CRV3, 2CR5, CR-P2 cylindriske batterier og forskellige knapcellebatterier.
- Vise: Bar indicators (Poor, Weak, Good).
- Strømkilde: Battery under test (does not require internal batteries for testing).
8.2. Dlyfull B4 Universal Battery Tester
- Kompatibilitet: 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. Supports AAA, AA, C, SC, D, N sizes, button cells, CR123A, CR-V3, 2CR5, 23A, 27A, and more.
- Vise: Smart LCD display showing voltage and battery level (percentage and bar).
- Strømkilde: 3 x AAA Alkaline batteries (included).
8.3. Generelle specifikationer
- Mærke: DLYFULD
- Farve: Sort
- Måltype: Voltmeter
9. Garanti og support
DLYFULL provides an 18-Month Warranty for your Dlyfull B2 Black and B4 Universal Battery Testers. We also offer Lifetime 24-Hour Friendly Customer Service.
For any questions, technical support, or warranty claims, please contact DLYFULL customer service through the retailer's platform or visit the official DLYFULL webwebsted for kontaktoplysninger.




