John if you got a Honda civic hybrid from 2003 which I have its will charge the 12 volt. With 4 bars but now the before models, insight, I would think that the later hhc models would still caries this same charging of the 12 volt battery, I seen someone concerned this and If you change or disconnect the battery or have a recall 4 bar of Regen will alway show not moving. Goggle this subject.