Hello guest: it would be nice to have some specific details, but I would say yes.
Obviously a battery is integral to the system, but also the battery can be thought of as the final voltage regulator, if the connection to the battery was intermittent , the regulator would continuously be adjusting attempting to maintain a constant voltage, this could allow voltage spikes which could damage a internal voltage regulator, the alternator itself should be able to handle the situation, although there might be a chance of damaging the diodes.
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"The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man" George Shaw