i have an iphone 4 with me from past 1 month . its battery power is very less or it may happen that i am using it very much because all of my business call comes in my iphone 4. so because of this reason i am thinking that i should buy a power mat for my iphone 4 . so that i can charge it any where as it is a wireless charging mats and receiver for iphone . so kindly suggest me whether my decision is right or wrong if wrong why it is wrong .