VARTA CoinPower A4 Batteries Are Designed for the Future Development of Wearable and Mobile Devices VARTA Launches CoinPower A4 Batteries for Wearable and Mobile Devices
Varta INR1254 Button cell (rechargeable) CP1254 A4 Li-ion 74 mAh 3.7 V 1 pc(s) | Conrad.com
Jabra Bluetooth Battery | Varta Cp1254 A3 Battery | Varta Battery Cp1254 A2 - New 3.7v - Aliexpress
NEW VARTA CP1254 A3 3.7v Rechargeable Cell Battery for Sony Samsung Powerbeats 4008496594375 | eBay
2pcs Varta CP1254 A3 Battery for Sony WF-1000XM3 WF-1000X WF-SP700N Headphones | eBay
Amazon.com: FCQLR 1PCS Compatible for VARTA CP1254 Samsung Bluetooth Headset Bracelet Rechargeable Battery 3.7V : Electronics