Lithium-Ion rechargeable batteries for your wireless keyboard projects in various sizes. Those with a connector are standard JST PH 2mm which is used by most keyboard projects. Breakdown of each battery type is below. Battery Types Available: 401230 - 3.7v 115mAh - This Battery Fits under the microcontroller between the headers. This battery does NOT have a connector. HxWxL Measurements are: 4mm x 12mm x 31mm 752080 - 3.7v 1500mAh - This is a much larger battery that is long and thin with a lot more power capacity and included JST PH Connector. HxWxL Measurements are: 6.5mm x 17mm x 80mm LIP1859 - 3.7v 1800mAh - This is a wide and flat battery pack with a JST PH connector. HxWxL Measurements are: 5.2mm x 36mm x 58mm
