Amazon.com: DC 3.7V 2100mAh 804050 li-ion Lithium Ion Polymer Battery Replacement for DIY 3.7-5V Electronic Product, Mobile Energy Storage Power Supply : Electronics
Makita BL1850-2 18-volt LXT Lithium-Ion 5.0Ah Battery, 2-Pack- Discontinued by Manufacturer (Discontinued by Manufacturer) - - Amazon.com
Superpower 18500 Lithium-Ionen-Akku 1500 mAh - 3,7 V 1677EDC906: Amazon.de: Elektronik & Foto
Amazon.com: USB Rechargeable AAA Batteries by Pale Blue, Lithium Ion 1.5v 750 mAh, Charges Under 1 Hour, Over 1000 Cycles, 4-in-1 USB to Micro USB Charging Cable, LED Charge Indicator, 4-Pack :
Makita BL1850-2 18-volt LXT Lithium-Ion 5.0Ah Battery, 2-Pack- Discontinued by Manufacturer (Discontinued by Manufacturer) - - Amazon.com