Samsung Battery for the Samsung Galaxy J5. Reliable battery power for your Galaxy J5. The Galaxy J5 Battery is a high-quality Lithium-Ion battery that has been designed specifically to deliver the most reliable and long-lasting power for your Samsung Galaxy J5. Additional power when you need it. Our Lithium-Ion Battery, exclusively for Samsung Smartphones, offers longer battery life, is reliable and safe, having gone through an exhausting testing and certification process. For long travels or extended use, have the peace of mind of an extra Samsung battery on hand when you need it.