GP button cell 1.5 V 50 mAh alkali 11.6x3.1 mm (GP Batteries GP89A) - EVE GmbH
Jehu Garcia 50 pack PINYOU INR18650 2500 mAh NMC cells ( 3C max discharge) - Sriko Batteries – Jag35
Ansmann AA 2850 mah High Capacity Slimline Rechargeable Battery 4-pk
A Lithium-Metal Anode with Ultra-High Areal Capacity (50 mAh cm−2) by Gridding Lithium Plating/Stripping - ScienceDirect
360821 3.7v 50mah Lithium Polymer Lipo Rechargeable Battery Li Ion Mp3 Mp4 - Digital Batteries - AliExpress
45mAh LP601113 3.7 v Small LiPo Battery 6mm Thickness | Polybattery.com
China Best Lithium Cells Manufacturer Customized Lipo Battery for Bluetooth Headset / Smart Watch BZ 501015 50mAh 3.7V Li-Polymer Battery
50mAh 3.7V rechargeable lipo Battery Cell For MP3 MP4 bluetooth headphone 501015 | eBay
3.7V 50mAh Cylindrical Rechargeable Mini Lipo Battery for Bluetooth Earphone or Headphone Battery: Buy Online at Best Prices in Bangladesh | Daraz.com.bd