Battery type electricity quantity display Wide application fields: lithium based battery, single cell, 3.3V to 4.2V Using Method: connect display board positive and negative port with tested battery positive and negative port, digital tube will display real-time battery electricity quantity Digital Color: outline red,display block blue (when battery electricity quantity is full, it will be all on) Weight: 5 g Dimension : 45 mm x 20 mm x 10 mm Packing list x1 unit Battery Voltage indicator Module
