I've been salvaging these disposable vapes for the 3.7v 500mAh lithium batteries inside. They can be used to power small electronic projects with the appropriate charging circuit and voltage converter. : r/diyelectronics US$ 26.79 Min. order: 1 piece ★★★★★ 4.0 (275 reviews) Sold : Login>>
Auto Draw 510 Vape Pen Battery by HoneyStick – Vape Batt US$ 21.42 Min. order: 1 piece ★★★★★ 4.8 (56 reviews) Sold : Login>>
A Vaper's Ultimate Guide to Volts, Watts, and Ohms – cometovape US$ 23.62 Min. order: 1 piece ★★★★★ 4.4 (291 reviews) Sold : Login>>