b1driver
Well Known Member
Has anyone got any good numbers on how many AMPS a single ECU and Coil draws at peak. Im trying to figure out my backup source of power and leaning towards a TCW battery (3 AMP hours version). I like this approach because of the automatic switching it offers should I have an issue with the main source of power. I know that EFII claims 1.1 AMPS at 2500 RPM but I was looking for in the field numbers out there since the ECU requires a 5 AMP breaker and the coils require 10 AMPS. Thanks a ton ahead of time for any info.