repair electronic items youtube - send online -- chip level can trick battery BMS too using resistances

 https://www.youtube.com/shorts/KF5vGxFXOxs?feature=share

changing battery with tricking BMS

https://www.youtube.com/shorts/q6xn4r54FAc?feature=share

ups and powerbank battery changes

https://www.youtube.com/shorts/ntnRV8h3pQY?feature=share