charger for motorolla droid turbo 1

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AC Question

hello so i am wondering if 1.5A charger is good or 2 A charger for my motorolla Droid turbo 1. please suggest me. i used 1 A charger but its charging this battery very slow in 4 or 5 hours.the shop owner told me turbo charger will ruin my battery if i use it everyday and the battery is sealed too.