12V Acid Lead Batteries Indicator Battery Capacity Voltage Meter Dual Display LED Tester Blue Description: This is a meter that can measure voltage and electric quantity of lithium battery, lead-acid batteries, car batteries, electric car batteries etc. the display shown on the three LED digital tube is much more intuitive. Beside, it is easy to operate. Features: Double display (electric quantity and voltage). 8 color bars (2 red bars, 6 green bars) on the top row displays battery electric quantity. Display is more intuitive. The bottom row display battery voltage. Application scope: lithium battery, lead-acid batteries, car batteries, electric car batteries, and other electrical equipment. Specifications: Voltage display color: red, blue (Optional) Work Current: 5-15mA Voltage error excepted: ± 1%; 8 bars of electricity display: 10% 25% 40% 50% 60% 75% 90% full Working current 5--15 ma Refresh rate: about 300mS once Display mode: 0.56"  three LED digital tube Lead length: 15cm / 5.91inch Dimensions: 48 x 29 x 22mm / 1.89 * 1.14 * 0.87inch Mounting hole: 46 x 27mm / 1.81 * 1.06inch Operating temperature: -10℃ ~ 65℃ Package weight: 18g How e: Connect the positive pole and negative pole to the positive pole and negative pole of the measured battery. Then the digital tube will show real-time battery power. 12V lead acid voltage range: Voltage＞11.1V, 1 bar bright Voltage＞11.3V, 2 bar bright Voltage＞11.6V, 3 bar bright Voltage＞11.9V, 4 bar bright Voltage＞12.2V, 5 bar bright Voltage＞12.5V, 6 bar bright Voltage＞12.9V, 7 bar bright Voltage＞13.3V, 8 bar bright Note: If the polarity is reversed, then the electricity tester will be burned. Package List: 1 x Battery Tester