1. Optimized Battery Usage: Specially increased 80 mA load current to determine actual battery performance, avoid waste caused by virtual energy, and meaningfully extend battery life. 2. Effortless Monitoring: Instantly make battery replacement decisions with simple color coding bad, weak, good and a high-resolution display that provides intuitive and accurate status assessment of your household batteries. Easily monitor battery voltage and quickly identify the battery status for effortless battery replacement. 3. Easy Carrying: Crafted from ABS material, this portable tester sized 4.6 x 2.6 x 1.34 inches allows you to check battery status at any time; suitable for all batteries, its your go-to for testing anytime, anywhere, whether or traveling. 4. Reduce Consumables Usage: Our household battery tester accurately detects the remaining battery charge, so you can avoid blind replacements and reduce environmental damage: lessening your battery consumption. 5. Scope Application: Don't worry about testing various battery anymore. Our battery tester supports everyday household batteries like AA, C, D, 9V 6F22, and less common MN2400, R03 A, HP7, HP7, SP2, R20, UM1, including versatile 1.5V button battery specifications like AAA, HP16, HPN1, UM3 C, HP11, MN1400, SP11, LR14, UM2 D, HP2, MN1300. Widely applicable with 9V P3, MN1604, 6F22, 006P, and great for all your testing needs. Efficiently manage your batteries with our household battery checker. Test anytime, anywhere with the high-resolution display which helps reduce consumption and extend battery life. This battery checker is widely used, making it an important tool for both personal and professional use. Product size:about 11.6x6.6x3.6cm/4.57x2.6x1.42 inches Weight:75g Colour:Black Material:ABS Package Contents: 1 * Battery Testing Device Only the above package content, other products are not included. 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.