DC7-40V Battery Level Indicator 12V 24V 36V 48V Acid/Lipo Lithium Battery Capacity Board Voltage Battery Charging Tester 

Features: 1. The product defaults to a ternary lithium battery L03 S voltage (L03) when powered on for the first time. 2. Measurement of ternary lithium battery (L): from L03 S to L12 S. 3. Measurement of iron lithium battery (F): from F03 S to F14 S. 4. Acid battery (P) measurement: P12V/P24V/36V/48V. 5. Custom mode: high and low voltage settings, set the voltage values for fully charged and fully discharged. 6. Low voltage alarm function: When the battery level is equal to or lower than 10%, the red battery grid flashes. 7. There is a power-off memory storage function. Voltage measurement range: DC7- 40V Working current: ≤ 20mA Display mode: LED screen Measurement of ternary lithium iron: 3S~12S Measurement of lithium iron batteries: 3S~14S Acid battery measurement: 12V/24V/36V/48V Product size: 46 * 15 * 3mm Button Description: 1. On the normal display page, short press the button to turn off and on the display. 2. On the normal display page, press and hold the button for 2 seconds to enter the settings page.