Bullet Point 1 Kastar 2 pack high capacity batteries. Use high quality Japanese cells for longer battery life with no memory effect. Bullet Point 2 New design, easy to carry. Input: 5V 2A; Output: 4.2V/8.4V 600mA*2. Bullet Point 3 Can be powered by USB Wall & Auto Charger or a Computer, LED indicate: Red light for charging; Green light for standby or full-charge. Bullet Point 4 With the newest generation of CPU control, automatic constant current control prevents battery from overcharging and short circuit. Bullet Point 5 Patented charger with FCC, CE and ROHS certification. All items include 18-Month manufacturer warranty. Description Details Package Includes: 2 x Batteries 1 x USB Dual Charger 1 x Micro USB Battery Compatible: Samsung SLB-1137D Charger Compatible: Samsung SLB-1137D Compatible the following models: Samsung i80 Samsung i85 Samsung i100 Samsung L74 Samsung Wide NV11 Samsung Wide NV24HD Samsung Wide NV30 Samsung Wide NV40 Samsung Wide NV100HD Samsung Wide NV103 Samsung Wide NV106 HD Samsung Wide TL34HD Quality Price Value