A Danny D'Amico se le ha ocurrido que:

Yes. But if the Moto-G spec is really 1 amp to 1.5 amp
recommended charger capability, the real question is
whether your laptop and car adapter can meet the current
spec for the Moto G.

Linear or switched voltage regulators, as the ones used in phone
chargers, are mostly self current limiting, so there is no risk, just
that moto-G will tabe a bit longer to charge.

--
Un saludo,
Alberto