    Sentence 1 What happens when we charge our mobile  with 5V 2A rated charger instead of SV 1A rated  charger? Will charging faster damage the battery?    Sentence 2: I'm thinking of purchasing a solar charger  that is listed as IOOOOmAH, with SV with 21A max.  Can I use this to charge my cell phone, which is rated at  5V&12A?