Out of the box it worked. At the 3 month mark only one battery slot actually works. So you can only charge one battery at a time. I should probably of listened to other reviews on this one.
TalentCell 12V Lithium-Ion Battery Pack For LED Strips, CCTV Cameras & More β Rechargeable With Multi-LED Indicator
44 Review
Dlyfull LCD Battery Tester - Universal Checker For AA AAA C D 9V CR2032 CR123A & More, 2X AAA Batteries Included
34 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
Fireproof Battery Organizer Storage Case: Waterproof & Explosionproof Safe Bag Fits 210+ Batteries - With Tester BT-168, Carrying Container Bag For AA AAA C D 9V Lithium 3V Holders
49 Review