Universal Battery Tester (C/AA/AAA/D/N/9V/6F2/1.55V)

Description

Universal Battery Tester is a Multi-Cell Digital Battery Analyzer (C/AA/AAA/D/N/9V/Button Cells) is a handheld instrument that quickly gauges the remaining charge in common batteries. It supports standard 1.5V cells (sizes C, AA, AAA, D, N) and 9V (6F22) blocks, as well as 1.55V button cells​. The tester features a digital LCD with a color-coded bar-graph readout to display each battery’s voltage and condition (Good/Weak/Replace). Unlike a simple voltmeter, it applies a small internal load so the reading reflects real-world battery performance. The device draws only minimal power and is powered by the battery under test (no internal battery required), keeping testing quick and avoiding additional discharge.