<p>Universal Battery Checker Tester AA AAA C D 9V Button</p> <p>Checks power level of all 1.5V \u0026 9V batteries</p> <p>Easy to red, colour coded meter indicates power level</p> <p>Tests 1.5V miniature cells</p> <p>Three result: red=replace, yellow=low power, green=good</p> <p>Product advantages: No power supply required, can quickly determine whether the 1.5V, 9V battery is fully , compact and easy to carry</p> <p>Product features:</p> <p>Can measure 1.5V , No. 7 batteries, 9V square batteries, can measure whether the battery is fully , the pointer directly displays the measurement results</p> <p>The color of the indicator on the meter is as follows:</p> <p>Red (RE-PLACE): If the indicator needle points to this block, the battery under test needs to be replaced or recharged, that is, the battery is basically unusable.</p> <p>Yellow (LOW): The battery power is very low, but some electrical appliances can still be used.</p> <p>Green (GOOD): The battery power is sufficient.</p> <p>Colour:black</p> <p>Material:plastic</p> <p>How to use:</p> <p>1. Connect the 9V battery directly to the two test holes on the side of the tester, pay attention to the positive and negative poles</p> <p>2. 1.5V , No. 7 battery, please use the hand plate to open the test arm at the top of the tester, insert the battery, and pay attention to the positive and negative poles.</p> <p>Standard configuration: bare meter (no battery required)</p> <p>Please check as much as possible to make sure the item is what you need.</p> <p>Due to different batches, there may be differences in product appearance and printed text, which not affect use</p> <p>Package Contents:</p> <p>1 * Digital Battery Tester</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>