DC Voltmeter with 2 USB For 3S 12.6V Battery Product Description: The electricity meter adopts a double-row display method of electricity + voltage. Equipped with dual port 5V2.4A USB charging port. The real-time battery power display is clear at a glance, convenient and practical. Using 2-wire system, the length of the wire is 20cm, and the current battery power can be displayed by directly connecting to the power terminal. The working current is less than 20mA, the calorific value is low, and the efficiency is high. Anti-reverse protection.

Application range: 1. This electricity meter is suitable for 12V lead-acid batteries. 2. Suitable for lithium battery packs with 3-7S strings. 3. Cars, trucks. 4. Solar power generation system, etc.