Digital Battery Tester – Universal LCD Capacity Checker AA AAA Lithium 9V

Never Guess If a Battery Is Dead Again

Weak batteries waste your time and money. This digital battery tester gives you an instant, accurate LCD readout of any battery’s remaining charge — from everyday AA and AAA cells to lithium 18650s and 9V blocks — so you always know exactly what’s left before it lets you down.

Why You'll Love It

• ✦ Universal compatibility — tests 1.5V (AA, AAA, C, D), 9V, and 3.7V lithium batteries (18650, 16340, 14500, and more)
• ✦ Clear LCD display — easy-to-read charge level readout in seconds
• ✦ Load testing — tests batteries under load for a true capacity reading, not just open-circuit voltage
• ✦ Compact ABS construction — lightweight, durable, and easy to store in any drawer or toolbox
• ✦ No batteries required to operate — powered by the battery being tested

Product Features

Specifications

• Material: ABS
• Display: LCD
• Certification: CE
• Compatible batteries:
• — Lithium: 3.7V (18650, 16340, 14500, 10440, 21700)
• — 1.5V: AAA, AA, C, D
• — 9V: PP3, MN1604, 6F22, 006P

Perfect For

Drivers, homeowners, and electronics enthusiasts who want a fast, reliable way to check battery health before it causes a problem. This universal battery tester is the essential tool for anyone who uses rechargeable or disposable batteries regularly — in remotes, flashlights, car accessories, and more.

Package Includes

• 1 × Digital Battery Tester
• Note: No batteries included — the tester is powered by the battery being tested

Upgrade Your Driving Experience

From your car key fob to your dashcam, every battery-powered device in your life deserves a quick check. Add this digital battery tester to your toolkit and stop replacing batteries that still have life left — or getting caught out by ones that don’t.