I am installing a 5500 in my RV-7 panel connecting to Dynon SV-Network devices. The sum of the power demands for the Dynon devices connected to the SV-Network exceeds the 3.5 amp limitation of the TCWTech 6ah backup battery slightly. Total demand including the 5500 is 3.61 amps; 2.8 for the 5500 and 0.81 for SV devices. Not a significant overage but it does exceed the individual pin restriction of 3.5 amps.

TCWTech documentation does state the pins can be run in parallel which would provide greater amps (7.0) but there is no additional connection point within AFS/SV network. Just the one pin on the EFIS expansion cable.

Is there some other method of providing backup power to the SV-network devices that I have overlooked short of installing a second EFIS? The second EFIS would pick up half the load so the individual pin load would be 3.21 amps (2.8 for the EFIS and 0.41 for SV devices.)

Thanks for your time.

Scott