FWIW, I get (a variant of) these messages even when my Edison IS plugged into the Arduino breakout:
Starting kernel ...
[ 0.758919] pca953x 1-0020: failed reading register
[ 1.636840] pmic_ccsm pmic_ccsm: Error reading battery profile from battid frmwrk
[ 1.645296] pmic_ccsm pmic_ccsm: Battery Over heat exception
[ 1.645383] pmic_ccsm pmic_ccsm: Battery0 temperature inside boundary