3.7v Lithium Battery Charge Full & Low Level Indicator 

Thank you!

Vero, in più costruendo una fila di questi circuiti, e con il connettore adatto, si potrebbero anche monitorare le singole celle dei pacchi batteria

Grazie mille =)

Hi, about Jammers in the past I made an infrared Jammer, designed for little jokes between friends, since it only works within a few meters ( Here video about IR Jammer: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-p6t4_FGatqk.html ).. Then I made an "autopsy" video of a cheap Jammer ( Video here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-hkz5iOlR9y0.html ).. Unfortunately, I cannot exceed these limits as jammers are illegal in many states, and I would not like to receive complaints from RU-vid.

@@Stefano91ste OK.As I am talking about simple jammer for just kidding my friends 😂😂

Thank you =)

Gracias :)

Thanks, to configure the circuit on 3.7volt batteries

Thanks!

Hi, with 2.6 volt the battery is dead😅😅😅

Hi, no because the C1518 is not equivalent with the BC547, some equivalents of the BC547 are: BC548, BC549, BC636, BC639, 2N2222 TO-92, 2N2222 TO-18, 2N2369, 2N3055 and 2N3904. It cannot even be used with 3v batteries because the circuit is sized for 3.7 volt batteries (the 3 volt would always be discharged)

Why? inverting + and - it does not work