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 battery tester with sliding contacts for multiple cell sizes

Shudyear Battery Tester for 18650 26650 AAA AA C D 9V 1.5V Button Cell

SKU CH-63PT-YMFHC

Tests 18650, 26650, AAA, AA, C, D, 9V, 1.5V and button cells without needing its own power source

  • FeaturesTester, Test Substance, false
  • Height4.2 L x 2.3 W x 1 H inches
  • Width4.2 L x 2.3 W x 1 H inches
  • Length4.2 L x 2.3 W x 1 H inches
  • Weight0.11 pounds
  • Sports Team1 Piece
  • Tests 18650 26650 AA AAA C D 9V 1.5V button cells in one compact tool
  • Operates without internal batteries — powered by the cell under test
  • Instant voltage readout by aligning positive and negative terminals
  • Prevents waste by confirming remaining capacity before disposal
  • Pocket-size at 11 × 6 × 2.5 cm and only 0.11 lb

Universal Battery Checker

The Shudyear tester checks voltage on 18650, 26650, AAA, AA, C, D, 9V, 1.5V and button cells in one handheld unit. It draws power from the cell under test so no internal batteries are required. Home users and hobbyists can verify charge state before installing cells in devices.

Compact No-Power Design

The tester measures 11 × 6 × 2.5 cm and weighs .11 pounds, fitting easily in a tool pouch or drawer. Spring-loaded contacts align with positive and negative terminals for a quick reading without cables or adapters. Because it activates only when a cell is inserted, there is no switch to forget and no standby drain.

Replaces Guesswork And Single-Type Testers

Instead of discarding cells that may still hold useful charge, users read the exact voltage and decide whether to keep or recycle. The jump from single-chemistry checkers is worth it when a household or workshop uses several battery formats and wants one tool that covers them all.

Highlights

  • Tests 18650 26650 AA AAA C D 9V 1.5V button cells in one compact tool
  • Operates without internal batteries — powered by the cell under test
  • Instant voltage readout by aligning positive and negative terminals
  • Prevents waste by confirming remaining capacity before disposal
  • Pocket-size at 11 × 6 × 2.5 cm and only 0.11 lb

Specifications

BrandShudyear
FeaturesTester, Test Substance, false
Height4.2 L x 2.3 W x 1 H inches
Width4.2 L x 2.3 W x 1 H inches
Length4.2 L x 2.3 W x 1 H inches
Weight0.11 pounds
Sports Team1 Piece
TypeVoltmeter

Questions about this item

What voltage range does the Shudyear tester display when checking 1.5 V cells?

It reads the exact voltage present on 1.5 V button, AAA, AA, C and D cells, showing a numerical value that lets you judge remaining capacity.

What physical clearance is needed for the 11 × 6 × 2.5 cm body?

The tester fits in a space 4.2 in long, 2.3 in wide and 1 in high, so any drawer or tool pouch with those inside dimensions will hold it.

How do you connect a 26650 or 18650 cell without shorting the contacts?

Slide the cell in so its positive tip and negative base touch the matching tester terminals only; the unit powers on from the cell itself and shows voltage instantly.

Also in this aisle

People compared these

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