It's a good quality semi-hard sided box that will hold a LOT of batteries as well as battery tester, chargers and various accessories and makes it easy to find the battery you need. Honestly it has a lot more capacity than I need and was larger than I anticipated. It is predominantly for AA battery storage as there are only 6 D slots and 8 C slots. Fortunately I already have my own battery tester since that was not included.
EBL Rechargeable AA Batteries 2300mAh - Long Lasting Battery (8 Counts) + Charger for AA AAA Batteries
47 Review
EBL AA Rechargeable Batteries 4 Pack + Individual Cell 🔌 916 Battery Charger - Combo Deal for Rechargeable AA/AAA Ni-MH/Ni-CD Batteries
35 Review
LCD Battery Tester For Universal Battery Types - AA, AAA, C, D, 9V, CR2032, CR123A, CR2, CRV3, 2CR5, CRP2, 1.5V/3V Button Cells With Included AAA Battery
29 Review
5-Pack EBL 9V Rechargeable Lithium Ion Batteries With 600MAh Capacity And 5-Bay Charger For Smoke Alarm Detectors - 2A Input
34 Review