[dhitchco]

Per rule <R03> in section 5.3, an externally-mounted battery could very easily be considered to be a "protrusion" by the judges.

Yes, they're really looking at it fromthe perspective of "spears", "forks" and "offensive" safety hazards, but a battery (unprotected) would likely raise some serious issues.

However, don't forget that weigh-in this year EXCLUDES the battery, so it must be easily removable. See <R08> under section 5.3.2.2.