UBANU BT-860 Battery Voltage Tester 1.5V 9V

Compact battery tester for home use

The UBANU BT-860 is a pocket-sized voltage tester designed to check the remaining charge of common household batteries. It accepts AA, AAA, C, D, 9V and 1.5V cells, making it a practical tool for anyone who wants to sort working cells from depleted ones without guesswork. The unit draws operating power directly from the battery under test, so no separate supply is required.

Replaces trial-and-error battery checks

Instead of inserting cells into devices to see if they work, the BT-860 gives an immediate analog reading on a colour-coded scale. The jump is worth it when you regularly use battery-powered remotes, toys, clocks or sensors and want to avoid the frustration of discovering a dead cell only after assembly. It is not suited for rechargeable packs, lithium coin cells or automotive batteries that fall outside the listed formats.

Steady readings during repeated use

Because the tester is energised by each battery it measures, its response remains consistent regardless of how many cells you check in succession. The ABS shell resists casual drops and the moving-pointer display requires no internal battery to maintain calibration. There is no warm-up drift or display fade, so the last reading of the day is as reliable as the first.