Rechargeable Batteries Aaa Aa 1.2v 3000mah - High Capacity 3000mah 1.2v Aa - Aliexpress
Differences between AA and AAA Battery-use, size, capacity, mAh
AAA battery - Wikipedia
Amazon.com: EBL 48 Counts AA Batteries and AAA Batteries Combo Pack - High Capacity 24 Double A and 24 Triple A Batteries 1.5V High Performance Alkaline Battery with Longer Year Shelf Life :
AAA Battery: Everything You Need To Know
How long do 3 AAA batteries last for a 4.5v 0.5W product? - Quora