Well, we are as a group experiencing low voltage issues, I'm wondering is an auxiliary battery that kept the voltages in line with what the computer / sensors want, couldn't be implemented. I am no electrical engineer, but there has to be a solution. this was just spit-balling, but it does offer 14.4 Volts.

 

If it provides enough power & you keep it charged....

(Probably not enough & it won't be.)