This small recognised battery from the now possibly defunct business functions best with AiroPro. We do disclaim here this battery wasn't made for AiroPro, produced by CCELL nor made with AiroPro in your mind. We just had an AiroPro battery go negative after and this was lying all around and https://milofbzmt.ka-blogs.com/86609560/about-airopro-cartridge-buy-online-usa