Easy to use and seems accurate. I think to truly test batteries they need to be under a load which this device does not do. But it’s worth checking your drawer full of Batteries to see which ones are not up to snuff
5-Pack EBL 9V Rechargeable Lithium Ion Batteries With 600MAh Capacity And 5-Bay Charger For Smoke Alarm Detectors - 2A Input
34 Review
Dlyfull LCD Battery Tester - Universal Checker For AA AAA C D 9V CR2032 CR123A & More, 2X AAA Batteries Included
34 Review
TalentCell 12V Lithium-Ion Battery Pack For LED Strips, CCTV Cameras & More – Rechargeable With Multi-LED Indicator
44 Review
EBL Smart LCD Charger With 2800MAh Rechargeable AA Batteries 4Pcs & 1100MAh AAA Batteries 4Pcs Combo - High-Performance And Convenient Rechargeable Batteries And Charger Set
28 Review