Overview: High-capacity, rechargeable Lithium-ion polymer battery packs for increased energy efficiency.3DS Portable Power is compatible with Nintendo 3DSDesign for the times when you need instant power for your 3DS game device Keep connected to your 3DS device & charge & play at same time Capacity of 8800 m Ah Model: TB-3DS-Po 1 Specification: Weight Approx:121.7g Size Approx:13.5 x 7.6 x 2.3