AAA 1.5V 1000mWh (approx. 667mAh) Lithium Ion Battery (Rechargeable via micro USB) | akkuteile.de
1.5V AA Varta Max Tech Alkaline Battery Tests - RightBattery.com
Amazon.com: USB Rechargeable AAA Batteries by Pale Blue, Lithium Ion 1.5v 600 mAh, Charges Under 1 Hour, Over 1000 Cycles, 4-in-1 USB-A to USB-C Charging Cable, LED Charge Indicator, 4-Pack : Health