The red wire is to connect to the positive pole, the black wire is to connect to the negative pole. No need to worry even if there is any connection mismatch of the wires, the electric circuit won’t be a boom because it features reverse polarity protection.
Features
Battery type electricity quantity display.
Wide application fields: lithium battery.
Using Method: connect display board positive and negative port with tested battery positive and negative port, the 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).
Specification
| Shell Color | Black |
| Display Color | Outline: Red, Status block: Blue |
| Voltage tolerance | ±1%; |
| 4 Levels of Power | 25%, 50%, 75%, 100% full |
| Working current | 5-15 ma |
| Refresh speed | 300mS once |
| Lead length | About 20cm |
| Working temperature | -20℃~65℃ |
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