is this items will charge my phone faster than the 2.4A ?

i have an iPhone 6s plus that i bought a week ago i use the the GPS all day long but the battery keep going down while on charge in my car and yes i use the original apple cable who came with the phone and my car deliver 2.4A

Belkin Car Charger (3.4A/17W) with Built-in Lightning Cable

Belkin Car Charger (3.4A/17W) with Built-in Lightning Cable

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