PNY's PowerPack ALU 2500 offers the ultimate in compact rechargeable batteries. The ultra-thin credit card design is small enough to keep in your shirt pocket, so you can stay charged and stay in touch. Whether in your pocket, purse or your backpack, the ALU 2500 is the perfect accessory for your mobile device. The ALU 2500 PowerPack delivers enough juice for up to 1 extra charge*.
*Varies by device