I have a lot of remote control devices, and digital clocks using AAA & AA , rechargeable batteries works fine, save on batteries and landfilling discarded batteries. This charger you need to plug into usb charging port as it doesn't come with AC wall USB port. I bought another charger buy this company company, it plugs directly into wall outlet, it has two USB outlets for cell phone or other devices.
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
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
EBL AA Rechargeable Batteries 4 Pack + Individual Cell π 916 Battery Charger - Combo Deal for Rechargeable AA/AAA Ni-MH/Ni-CD Batteries
35 Review