Alkaline AAA batteries - 3 pack : ID 3520 : $1.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: Power Supply for 3 AA, AAA Battery, (2 Pack) 18500 Protected 3.7V Rechargeable Battery 1600mAh with Charger - [Replace 3 AAA, 3 AA Battery for 21, 51 LED UV Flashlight ] : Health & Household
4 pack (1/3) AAA Rechargeable Batteries
3 x 3 AAA Battery Holder Spring Box For Flashlight Torch High Quality - Walmart.com
Flashlight Battery 3 AAA Plastic Battery Holder Unit for LED Flashlight Torch
GP Batteries GP40AAAM Non-standard battery (rechargeable) 2/3 AAA Flat top NiMH 1.2 V 400 mAh | Conrad.com
GP Batteries GP17AAAH Non-standard battery (rechargeable) 1/3 AAA Flat top NiMH 1.2 V 170 mAh | Conrad.com
Why do we use 3 AAA instead of 1 or 2 AA batteries? Is there a huge output difference? - Quora
Amazon.com : Alpine Corporation 2/3 AAA Ni-CD Replacement Solar Rechargeable Batteries for Solar Powered Garden Lights, Set of 4 : Tools & Home Improvement