The amperage from my alternator to my 12-12-30 Orion Smart isolated charger to my two LiFePo4 batteries keep jumping from 47 to 6. Amp meter shows 6 amps for 8 seconds, then 47 amps for 4 seconds. Over and over again, just keeps alternating between the two. The distance is about 14' and the wire gauge is 8 AWG. Why is this happening? Is there something wrong with this setup?