We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Compact rectangular tester with magnetic slot, LCD screen and USB-C port

DLYPOW DB1 Magnetic Battery Tester USB-C

SKU CH-KX5V-M3J9G

A magnetic battery tester checks voltage and health for AAA, AA, C, D, 9V, button cells and rechargeables, then displays Good, Weak or Replace status on an LCD screen

  • FeaturesDB1 Battery Tester?USB-C charging cable?Welcome Guide, CE, B
  • Height3.8 L x 2.5 W x 1.2 H inches
  • Width3.8 L x 2.5 W x 1.2 H inches
  • Length3.8 L x 2.5 W x 1.2 H inches
  • Sports Team1 Piece
  • Tests AAA, AA, C, D, 9V, button cells and 18650
  • Three-step test with SELECT button and LCD readout
  • Green Good, yellow Weak, red Replace health indicator
  • Magnetic buckle holds battery securely during testing
  • USB-C recharge gives 2-3 months standby per charge

Universal Battery Compatibility

The DLYPOW DB1 tests 1.2V Ni-MH/CD, 1.5V alkaline, 3.0V lithium, 3.7V Li-ion and 9.0V cells. It accepts AAA, AA, C, SC, D, N, 18650, CR123A, LR44, CR2032, CR2450, CR2 and CRV3 button cells. Home users and technicians can check a wide mix of household batteries with one handheld device.

LCD Voltage Range Selection

Operation requires pressing the SELECT button to choose the correct voltage range before inserting a cell with proper polarity. The LCD then shows the measured voltage and a status icon. Open-circuit testing draws no power from the battery under test, so the device only consumes its own rechargeable supply during active checks.

Rechargeable Tester With USB-C

The built-in cell powers the unit for 2 to 3 months per full charge via the supplied USB-C cable. It comfortably handles daily checks of common cylindrical and coin cells up to 9.0V. It does not support high-voltage packs, automotive starter batteries or cells outside the listed chemistry and size range.

Highlights

  • Tests AAA, AA, C, D, 9V, button cells and 18650
  • Three-step test with SELECT button and LCD readout
  • Green Good, yellow Weak, red Replace health indicator
  • Magnetic buckle holds battery securely during testing
  • USB-C recharge gives 2-3 months standby per charge

Specifications

BrandDLYPOW
FeaturesDB1 Battery Tester?USB-C charging cable?Welcome Guide, CE, Battery Powered, true
Height3.8 L x 2.5 W x 1.2 H inches
Width3.8 L x 2.5 W x 1.2 H inches
Length3.8 L x 2.5 W x 1.2 H inches
Sports Team1 Piece

Questions about this item

Which voltage range should I select for a 3.7 V 18650 cell?

Press the SELECT button until the 3.7 V range is shown, insert the 18650 with correct polarity, and the LCD will read the voltage and show Good, Weak or Replace.

What does the LCD status mean for a 1.5 V AA alkaline?

The screen displays the measured voltage and a coloured expression — Good (green), Weak (yellow) or Replace (red) — so you know whether to keep or recycle the cell.

How long does the USB-C charge last between recharges?

A full charge keeps the tester on standby for 2 to 3 months, and the open-circuit test draws no power from the battery under test.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.