Digital Universal Battery Tester

Instantly Check Battery Power Stop guessing if a battery is dead. This universal tester gives you an immediate visual read on the remaining power of almost any household battery, helping you save money and reduce waste. No Batteries Needed Multi-Size Fit Color-Coded Results Fits Every Battery Type You Own Don't clutter your junk drawer with multiple testing tools. This single compact device handles it all. Whether you are checking old remotes or high-drain flashlights, the stepped design accommodates various sizes. Standard Cylinders: AA, AAA, C, D, and N types. Specialty Shapes: Fits 9V rectangular batteries and small 1.5V button cells. Clear Color-Coded Readings The built-in indicator provides an easy-to-understand status report instantly. The scale uses three distinct colors to tell you exactly what action to take: Green (Good): Fully charged and ready for use in high-power devices. Yellow (Weak): Low power. Best used in remote controls or clocks before discarding. Red (Poor): Depleted. Time to replace or recycle. Always Ready, No Setup Required Unlike digital testers that might run out of their own power when you need them most, this tool works using the energy from the battery being tested. It is always ready to go. Constructed from durable ABS insulation material, it is lightweight and safe to handle. Its slim profile means you can keep one in your pocket, purse, or toolbox without taking up space. Simple One-Step Operation Testing takes seconds. Simply place the positive end of the battery against the top metal contact and press the negative end into the corresponding slot size on the side. This simple mechanism makes it perfect for sorting through drawers of mixed batteries quickly. For 9V batteries, just press the terminals onto the bottom contacts. Frequently Asked Questions Does this tester require batteries to work? No. The device is powered directly by the battery you are testing. There are no internal batteries to replace. Can I test rechargeable batteries with this? Yes, it works with standard alkaline and rechargeable NiMH batteries (AA, AAA, C, D). However, please note that voltage readings may vary slightly depending on the chemistry of the battery. How do I test a 9V battery? Turn the tester over or look at the bottom edge. Press the two snap terminals of the 9V battery firmly onto the two metal circular contacts located there. What does the yellow zone mean? The yellow "Weak" zone indicates the battery still has some charge but is losing power. These batteries are often fine for low-energy devices like TV remotes or wall clocks but should not be used in cameras or toys.