Features:
1. Battery type electricity quantity display.
2. Wide application fields: lithium battery.
3. Method of use: connect the positive and negative display port with the positive and negative port of the tested battery, the digital tube will display the amount of battery electricity in real time.
4. Digital Color: red outline, blue screen block (when the battery electricity quantity is full, it will be on)
Display electricity quantity parameter:
1. When the battery voltage exceeds N*3.3V, 1 electricity quantity block will light up (note: N represents battery quantity).
2. When the battery voltage is greater than N*3.5V, it will light up 2 blocks of electricity quantity.
3. When the battery voltage is higher than N*3.7V, it will light up 3 blocks of electricity quantity.
4. When the battery voltage is higher than N*3.9V, it will light up 4 blocks of electricity quantity.
5. When the battery voltage is less than N * 3. 3V,4 blocks display will be off, it represents less than 3.3V battery, and you can charge the battery.