[Q] Is it safe to charge with Nexus 7 charger?

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http://forum.xda-developers.com – I have a Nexus 7 factory-included charger and I was wondering if I could safely charge my Nexus 4 with it. Reading from the specs printed on the chargers, the N7 charger outputs 2.0A at 5.0V, while the N4 charger outputs 1.2A at 5.0V. If it's safe, would it affect the N4's battery longevity in the long term? Considering it would be charged with a higher current. (HowTos)