The battery of your OBI smartphone no longer holds the charge? The autonomy is reduced from day to day and you have to recharge your OBI smartphone several times a day? A hassle that unfortunately affects all smartphones! The battery of a smartphone has performance that fall automatically with the passing months but with Doctor Batteries, say goodbye to all your performance concerns. Instead of always having your charger in your bag, you have the option to select the OBI smartphone battery you need to give your OBI smartphone a second life.