My mobile is not connected to a wire !!

I bought two batteries Anker, one for a Galaxy S3 and the other for my Galaxy S4 and I am very satisfied with these two batteries. Certainly, the phones themselves are a bit thickened but they have now just the two proper autonomy. I can use all the services telephony / 3G / 4G / GPS / music / videos / ... without having to recharge at midday.
When used moderately my phone, I can easily keep all weekend, which is very significant.
These batteries do not agree to be loaded / unloaded completely (everything is explained in the little manual provided) and can therefore be used even during installation. I am satisfied with my purchase and I recommend batteries Anker people who want their mobile to be mobile again for longer than a day :-).