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1. The battery has its own button, which supports self-modification of parameters and is easy to set. 2. Dual display of battery percentage + voltage 3. Comes with a switch to turn off the display 4. Battery percentage/voltage/off 5. Working voltage: DC6-63V 6. Working current: less than 5mA 7. Sleep power consumption: 12uA (12V is for testing) 8. Display mode: LCD with backlight 9. Mounting opening: about 58.5 x 28.5mm 10. Dimensions: about 61.3 x 33.3 x 13.5mm 11. Weight: about 19g