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Compact rectangular battery tester with magnetic contact points and three-colour indicator lights

Dlyfull B1T Magnetic Battery Tester

SKU CH-T1R3-E55M0

Tests AA, AAA, C, D, 9V and 1.5V button cells with magnetic contact for secure placement and a three-colour health display

  • Team affiliation1 Piece
  • Key features1*Dlyfull B1T Battery Load Tester; 1*Welcome Guide, No, fals
  • Product typeOhms, Volts, Amperes
  • Magnetic hold keeps batteries steady for reliable contact
  • Tests AA, AAA, C, D, 9V and 1.5V button cells
  • Instant health reading without an internal power source
  • Three-colour scale shows Good, Low or Replace at a glance
  • 18-month coverage backed by 24/7 support

Magnetic Battery Tester for Household Cells

The Dlyfull B1T checks AA, AAA, C, D, 9 V and 1.5 V button cells without a built-in power source. Its magnetic hold keeps cylindrical batteries steady during testing, though the 9 V terminal has no magnet. Home users and hobbyists get an instant health reading without fiddly contacts.

Passive Testing with Colour-Coded Readout

The tester draws its operating power from the cell under test, so no external supply or battery is needed. A three-colour LED shows Good in green, Low in yellow and Replace in red. Current draw stays minimal because the circuit only activates while a battery is seated.

Manual and 18-Month Warranty Included

The package supplies a welcome guide that explains the three LED states and proper terminal alignment. An 18-month warranty and 24/7 customer support cover defects, but the tester itself has no internal battery to replace. Buyers needing rechargeable-cell cycling or data logging will need a different instrument.

How it compares

Measured against everything we stock in Multimeters & Electrical Testers, at today’s prices. Recalculated every night.

Price $18.99
Cheaper than about 83% of the 971 comparable items (median $30.99).

Specifications

Product
Brand nameDLYFULL, Dlyfull
Product typeOhms, Volts, Amperes
More details
Team affiliation1 Piece

Questions about this item

How do I position a AA battery so the magnetic hold keeps it steady during testing?

Align the positive and negative terminals with the tester contacts; the magnetic hold secures AA, AAA, C and D cells automatically, but the 9 V terminal has no magnet so you must hold that battery in place manually.

What part of the Dlyfull B1T will need replacement after the 18-month warranty period?

The tester itself has no user-replaceable components; only the batteries you are checking will need replacement when the display shows "Replace" (red).

How many consecutive tests can I run before the "Low" (yellow) indicator becomes unreliable?

The tester draws no built-in power supply, so sustained use does not degrade its readings; each test gives an immediate Good, Low or Replace result regardless of how many you perform in a row.

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