Makeblock mBot Lithium Battery

About this item 3.7V recheargeable Li-Po battery for Makeblock mBot robot kit. Initial capacity ≥ 1800mA. The standard 2-pin JST-PH connector – 2mm spacing between pins. Compatible with mBot Robot Kit. Product Dimensions ‏ : ‎ 5.12 x 3.35 x 0.79 inches; 2.08 Ounces