Working voltage: 3-34V, working current: 5mA, working temperature: -20-50℃
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.
Note: This model is not waterproof, the electronic components should be used in a dry environment.
Wide application fields: lithium battery
Four-level power display(Blue/Green optional)
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