Since we carry and deal with more and more smart phones, we have to figure out better and mobile ways of charging those devices. MPJ is one of those companies trying to make our lives easier by being able to extend battery life. They are going to launch 3220 mAh and 6440 mAh extended battery for Samsung Galaxy Note 4 N910
The 3220mAh battery can store at least same juice as original battery and even 5% more energy than stock if the battery is calibrated. The second is a 6440 mAh extended battery, offering twice the capacity over the original battery. This particular battery needs its own back cover which MPJ will offer.