Quote Originally Posted by the evil twin View Post
Good point.

The cable has to handle the D250 current as well as the Smart Pass so the load will be considered to be in excess of 100 amps.

If that SCA product is 4 AWG I agree it will be large enough but the label says "4 gauge" not 4 AWG, 4 SWG or whatever which is suss.
I am guessing that if the fuse being supplied is only 60 amp then the cable isn't 4 AWG.
(Supply cables should be fused to reflect cable rating not the load of the device)
If an accessory is rated up near the wiring rating then awesome result and one fuse solves the issue otherwise Accessories or devices should be fused seperately and as close as reasonable to the Accessory.

If it is indeed genuine 4 AWG cable and SCA have, for some reason, only put in a fuse that is about 1/2 what the cable will carry then, yes, it will be OK for a Smartpass/D250 if the supplied fuse is chucked and a 150 amp jobbie used as per Ctek recommendations
OK yeah I was just assuming 4AWG but I guess you could be right it doesn't state it is