Can I power the 655 with a cigarette lighter adapter? Shawn April 15, 2019 21:28 Yes, the SR-655HPC & SR-955HPC can be powered using a cigarette lighter adapter. Related articles Radio should be putting out 80+ watts. Indicating only 40-50 with RF power on max and mic gain on high. Can I upload music for a Roger beep or can I only use tones for it? SR-655HPC Setup Guide Channel selector sometimes skips and doesn't feel as firm as I expected What Microphones are compatable with your radios? Comments 0 comments Article is closed for comments.