Single 3.7V Lithium Battery Capacity Indicator

Specifications:

• Battery type electricity quantity screen 
• Wide fields of application: lithium battery 
• Method of use: connect the display plate Positive and negative port with the tested battery Positive and negative port, the digital tube will show the quantity of battery electricity in real time 
• Digital Color: red contour, blue of the display block (when the amount of electricity of the battery is full, it will be all on) 
• When the battery voltage exceeds N * 3.3 V, 1 block of electricity quantity will light (note: N represents the amount of the battery) 
• When the battery voltage exceeds N * 3.5 V , will illuminate 2 blocks of electricity quantity 
• When the battery voltage exceeds N * 3.7 V, it will illuminate 3 blocks of electricity quantity 
• When the battery voltage exceeds N * 3.9 V, it will illuminate 4 blocks of electricity quantity 
• When the battery voltage is less than N * 3.3 V, the 4-block display will be off; represents a battery less than 3.3 V, and you can charge the battery