nacrt Rezerva Kljun απο μια 9 βολτ μπαταρια θελω 3.7 βολτ Sudbina iza tack
Can I use a 9V battery on the place of a 3.7 battery? - Quora
18650 Battery 3.7v 25f 2500mah IMR18650 INR18650 ICR18650 3.7 Volt Li-ion Battery for Electric vehicle battery, power battery - AliExpress
Amazon.com: MakerFocus 3.7V LiPo Battery 10000mAh Lithium Rechargeable Battery with Integrated Protective Board, Insulation Coating and PH2.0A Plug for Raspberry Pi UPS Board and Other : Toys & Games